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98 results on '"ICHAMS - Equipe Interaction Champs - Matériaux et Structures"'

1. An advanced control for a PM synchronous motor drive in power degraded mode

Author: Eric Berthelot, Abdelfatah Kolli, Olivier Béthoux, A. De Bernardinis, Eric Laboure, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Technologies Nouvelles (IFSTTAR/COSYS/LTN), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), and IFFSTAR
Subjects: Numerical Analysis, General Computer Science, Computer science, Applied Mathematics, Power inverter, 010103 numerical & computational mathematics, 02 engineering and technology, Degraded mode, 01 natural sciences, AC motor, Theoretical Computer Science, [SPI]Engineering Sciences [physics], Control theory, Proof of concept, Modeling and Simulation, 0202 electrical engineering, electronic engineering, information engineering, Torque, 020201 artificial intelligence & image processing, 0101 mathematics, Decoupling (electronics), ComputingMilieux_MISCELLANEOUS, Voltage, Reference frame
Abstract: This paper deals with a control principle designed to allow remedial strategies for Permanent Magnet Synchronous Motor (PMSM) drives. The scope of the paper is focused on three-phase machines and it aims to present a simple and easy to tune control scheme for the system while it operates in degraded mode, namely when only two out of the three phases are operational. Compared to existing control strategy dedicated to degraded mode, this work proposes an innovative one using new reference frames. Based on two innovative transformations applied respectively to the currents and the voltages of the system, the proposed control scheme allows, in degraded mode, the decoupling control of the states of the system and leads to continuous controller references during system steady states. These properties lead to a very straightforward control scheme based on independent PI controllers and to high static and dynamic performances. The parameters setting of the controller is quite simple whatever the degree of magnetic coupling between the two remaining motor phases. A laboratory test bench has been built to establish a proof of concept of the suggested remedial strategy. It is based on a three-phase open-end-winding permanent magnet machine fed with a power inverter made of three full H-bridge. This experimental setup enables to validate the main operations of the ac motor drive under degraded mode operation: torque control, speed change. Switching between healthy mode and faulty mode is also performed successfully using this setup.
Published: 2019
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2. Modeling of Several Concentric Layers of Superconducting Filaments

Author: Frédéric Bouillault, Thitipong Satiramatekul, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS]Physics [physics], 010302 applied physics, Superconductivity, Resistive touchscreen, Materials science, Large Hadron Collider, Condensed matter physics, Superconducting electric machine, Superconducting magnet, Superconducting magnetic energy storage, 01 natural sciences, Electronic, Optical and Magnetic Materials, law.invention, law, Condensed Matter::Superconductivity, Magnet, 0103 physical sciences, Electrical and Electronic Engineering, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Decoupling (electronics)
Abstract: LGEP 2014 ID = 1513; International audience; The knowledge of superconducting filaments magnetization is an important issue of the LHC main magnets design during the construction at CERN. A new method for modeling a superconducting strand, which consists of several concentric layers of the filaments, is proposed in this paper. The numerical results obtained using the finite-element method demonstrate the coupling and decoupling behaviors between the superconducting filaments via the resistive matrix. The comparison with the earlier work on the superconductor modeling is presented and discussed.
Published: 2014
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3. Effective Permittivity of Shielding Composite Materials for Microwave Frequencies

Author: Laurent Daniel, Romain Corcolle, Valentin Préault, Lionel Pichon, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Permittivity, Materials science, Electromagnetic compatibility, 020206 networking & telecommunications, 02 engineering and technology, Condensed Matter Physics, Microstructure, 01 natural sciences, Homogenization (chemistry), Atomic and Molecular Physics, and Optics, Wavelength, Homogeneous, 0103 physical sciences, Electromagnetic shielding, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Composite material, Microwave
Abstract: International audience; Due to mass constraints, composite materials are possible candidates to replace metal alloys for electromagnetic shielding applications. The design of standard metallic shielding enclosures often relies on finite-element calculations. But in the case of composite materials, the strong dependence on the shielding properties to the microstructure makes the finite-element approach almost impossible. Indeed meshing the microstructure would imply a huge number of elements, incompatible with usual computational resources. We propose in this paper to develop homogenization tools to define the effective electromagnetic properties of composite materials at microwave frequencies. The ratio between the characteristic size of the microstructure and the wavelength is shown to be a key parameter in the homogenization process. The effective properties can then be used as an input for electromagnetic compatibility standard tools, designed for homogeneous media.
Published: 2013
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4. Shielding Effectiveness of Composite Materials: Effect of Inclusion Shape

Author: Romain Corcolle, Valentin Préault, Lionel Pichon, Laurent Daniel, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Electromagnetic field, Computer science, business.industry, Electromagnetic compatibility, 020206 networking & telecommunications, 02 engineering and technology, Microstructure, 01 natural sciences, Homogenization (chemistry), Electronic, Optical and Magnetic Materials, 0103 physical sciences, Electromagnetic shielding, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Composite material, Aerospace, business, Electrical conductor, Quasistatic process, Microwave
Abstract: International audience; The use of composite materials for electromagnetic shielding applications contributes to the effort of structure lightening in aerospace industry. In these materials the strong interaction between the electromagnetic field and the microstructure makes the standard numerical tools difficult to implement. Indeed these methods would involve an excessive number of degrees of freedom to describe details of the microstructure. An efficient way to overcome this problem is the use of homogenization techniques providing the effective properties of heterogeneous materials. These effective properties can then be introduced in standard numerical tools to estimate the behavior of shielding enclosures. A recent paper proposes an extension to microwave frequencies of quasistatic homogenization methods. It introduces a characteristic length for the microstructure in the case of a square array of circular 2-D conductive phases embedded in a dielectric matrix. In this paper, a method to identify this length parameter is proposed for random microstructures.
Published: 2013
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5. An Analytical Model for the Effect of Multiaxial Stress on the Magnetic Susceptibility of Ferromagnetic Materials

Author: Laurent Daniel, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Materials science, 02 engineering and technology, Physics::Classical Physics, 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetic susceptibility, Electronic, Optical and Magnetic Materials, Stress (mechanics), Equivalent stress, Ferromagnetism, Permeability (electromagnetism), 0103 physical sciences, Electromagnetic devices, Electrical and Electronic Engineering, Composite material, 0210 nano-technology
Abstract: International audience; The magnetic permeability of magnetic materials highly depends on mechanical stress. Stress state is usually multiaxial and has a significant effect on the performance of electromagnetic devices. In this paper a three-parameter analytical model for the stress dependent permeability of magnetic materials is proposed, based on a simplified energetic description of magneto-elastic behaviour. The proposed approach also provides a new equivalent stress for magnetic behaviour in the low-field and low-stress regime.
Published: 2013
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6. Model-order reduction of magneto-harmonic problems based on POD: application to planar magnetic components

Author: Taylor, Laurent, Henneron, Thomas, Margueron, Xavier, Menach, Yvonnick Le, Moigne, Philippe Le, Razek, Adel, L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Outils et Méthodes Numériques (OMN), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

7. 3D modeling of forces between magnet and HTS in a levitation system using new approach of the control volume method based on an unstructured grid

Author: J. Lévêque, Lotfi Alloui, S.M. Mimoune, Frédéric Bouillault, Laurent Bernard, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and COCODI - Equipe Conception, Commande et Diagnostic
Subjects: 010302 applied physics, Physics, business.industry, Energy Engineering and Power Technology, Relaxation (iterative method), Mechanical engineering, Condensed Matter Physics, 3D modeling, 01 natural sciences, Control volume, Electronic, Optical and Magnetic Materials, Unstructured grid, Classical mechanics, Creep, Magnet, 0103 physical sciences, Levitation, Electrical and Electronic Engineering, 010306 general physics, business, Magnetic levitation
Abstract: International audience; In this paper we present new 3D numerical model to calculate the vertical and the guidance forces in high temperature superconductors taking into account the influence of the flux creep phenomena. In the suggested numerical model, we adopt a new approach of the control volume method. This approach is based on the use of an unstructured grid which can be used to model more complex geometries. A comparison of the control volume method results with experiments verifies the validity of this approach and the proposed numerical model. Based on this model, the levitation force's relaxation at different temperatures was also studied.
Published: 2012
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8. Ultrafast and low-power terahertz wave modulator based on organic photonic crystal

Author: Jiu-sheng Li, Said Zouhdi, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Materials science, Extinction ratio, Terahertz radiation, business.industry, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Intensity (physics), 010309 optics, Quality (physics), Optics, Picosecond, 0103 physical sciences, Insertion loss, Optoelectronics, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, 0210 nano-technology, business, Ultrashort pulse, Photonic crystal
Abstract: International audience; We theoretically investigate the modulation efficiency, response time, and pump power of a terahertz-beam intensity modulator by using an organic photonic crystal slab structure with high quality factor "defect" cavity. The basic operation of an ultrafast low-power terahertz wave modulator actuated by the dynamical shifts of the defect mode induced by pump intensity is discussed in detail. The finite-difference time-domain method is used to verify and analyze the characteristics of the terahertz wave modulator. The device exhibited extinction ratio of 47.15 dB and insertion loss of 3.2 dB at frequency of 1.062 THz with ultrafast response times on the order of several picoseconds.
Published: 2012
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9. Influence of Speed Variation of a Transverse Magnetic Field on a Magnetization of HTS Cylinder

Author: Denis Netter, Bruno Douine, Smail Mezani, Abelin Kameni, Jean Lévêque, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Groupe de Recherche en Electrotechnique et Electronique de Nancy (GREEN), Université de Lorraine (UL), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Physics, Magnetic domain, Condensed matter physics, Magnetic energy, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Demagnetizing field, Condensed Matter Physics, 01 natural sciences, Electronic, Optical and Magnetic Materials, [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con], [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Magnetization, Magnetic anisotropy, Remanence, 0103 physical sciences, Magnetic pressure, Electrical and Electronic Engineering, Single domain, 010306 general physics
Abstract: LGEP 2011 ID = 952; International audience; In this paper, we numerically study the influence of the speed variation of a magnetic source on the distribution of current density, magnetization, and dissipated energy of a high-temperature superconducting cylinder described by a Jn power law. The results presented come from the resolution of a nonlinear diffusion problem of electric field by a mixed finite-element finite-volume discretization method. This method is robust, stable, and converges for large values of n. The calculations carried out for n, varying from 1 to 200, show that when the external magnetic field quickly varies from 0 to its maximal value, the maximum values of penetration, the magnetization, and the energy dissipation are obtained when the switching of magnetic field occurs. For a periodic magnetic field, we note that any change of the period results in variation of the magnetization and the dissipated energy.
Published: 2011
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10. Energetical and multiscale approaches for the definition of an equivalent stress for magneto-elastic couplings

Author: Olivier Hubert, Laurent Daniel, Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École normale supérieure - Cachan (ENS Cachan)
Subjects: 010302 applied physics, Physics, Magnetic domain, Constitutive equation, Isotropy, 02 engineering and technology, Mechanics, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Orthotropic material, 01 natural sciences, Electronic, Optical and Magnetic Materials, Stress (mechanics), 0103 physical sciences, Stress measures, Hydrostatic stress, 0210 nano-technology, Plane stress
Abstract: LGEP 2011 ID = 842; International audience; A main limitation of most models describing the effect of stress on the magnetic behavior is that they are restricted to uniaxial - tensile or compressive - stress. Nevertheless, stress is multiaxial in most of industrial applications. An idea to overcome the strong limitation of models is to define a fictive uniaxial stress, the equivalentstress, that would change the magnetic behavior in a similar manner than a multiaxial stress. A first definition of equivalentstress, called the deviatoric equivalentstress, is proposed. It is based on an equivalence in magneto-elastic energy. This formulation is first derived for isotropic materials under specific assumptions. An extension to orthotropic media under disoriented magneto-mechanical loading is made. A new equivalentstress expression, called generalized equivalentstress, is then proposed. It is based on an equivalence in magnetization. Inverse identification of equivalentstress is made possible thanks to a strong simplification of the description of the material seen as an assembly of elementary magnetic domains. It is shown that this second proposal is a generalization of the deviatoric expression. Equivalentstress proposals are compared to former proposals and validated using experimental results carried out on an iron-cobalt sheet submitted to biaxial mechanical loading. These results are compared to the predictions obtained thanks to the equivalentstress formulations. The generalized equivalentstress is shown to be a tool able to foresee the magnetic behavior of a large panel of materials submitted to multiaxial stress.
Published: 2011
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11. Reconstruction of faulty wiring networks using reflectometry response and genetic algorithms

Author: Lionel Pichon, Mostafa Kamel Smail, Fabrice Auzanneau, Marc Lambert, Marc Olivas, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Fiabilisation des Systèmes Embarqués (LFSE), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), DRE - Département de Recherche en Electromagnétisme, EMG - Département Electromagnétisme - L2S, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-SUPELEC-Campus Gif, Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA))
Subjects: Engineering, reconstruction, time domain reflectometry, 02 engineering and technology, 01 natural sciences, Wiring network, Genetic algorithm, genetic algorithm, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Electrical and Electronic Engineering, Reflectometry, business.industry, Mechanical Engineering, 010401 analytical chemistry, Finite-difference time-domain method, faults, 020206 networking & telecommunications, Inverse problem, Condensed Matter Physics, Reconstruction method, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Mechanics of Materials, Simulated data, FDTD method, business, Algorithm
Abstract: International audience; A novel technique is developed to reconstruct faulty wiring networks and/or to localize the defects affecting the branches of the wiring network from the reflectometry response. The direct problem (propagation in the cables) is modelled by RLCG circuit model and the Finite Difference Time Domain (FDTD) method whereas the inverse problem is solved using Genetic Algorithms (GAs). In a first step the forward problems is validated by comparison with experimental and simulated data and in a second step the proposed reconstruction method is applied on different configurations and the results are discussed.
Published: 2011
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12. Fano Resonance Filtering Characteristic of High-Resistivity Silicon Photonic Crystal Slab in Terahertz Region

Author: Jiu-sheng Li, Said Zouhdi, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Silicon photonics, Materials science, Condensed matter physics, business.industry, Terahertz radiation, Physics::Optics, Fano resonance, 02 engineering and technology, Fano plane, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Terahertz spectroscopy and technology, 010309 optics, Mathematics::Algebraic Geometry, Optics, Q factor, 0103 physical sciences, Electrical and Electronic Engineering, 0210 nano-technology, business, Plasmon, Photonic crystal
Abstract: International audience; We investigate experimentally and numerically the Fano resonances of terahertz waves through a high resistivity silicon photonic crystal slab with a hexagonal array of circular air holes. Finite-difference time-domain simulation and terahertz time-domain spectroscopy transmission measurement show good agreement with the data, in support of the Fano resonance mechanism. The frequency dependent transmission spectra show there is a Fano resonance bandpass filtering characteristic at the center frequency of 2.10 THz with a Q factor of 191, which is consistent with that of Fano resonance theory calculation.
Published: 2012
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13. Turbo generators end windings magneto-mechanical analysis using a fully analytic magnetic model

Author: Journeaux, Antoine, Bouillault, Frédéric, Moreau, O., Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Leblanc, Thierry
Subjects: [SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2014

14. Reducing the Cost of Mesh-to-Mesh Data Transfer

Author: Antoine Alexandre Journeaux, Jean Yves Roger, Frédéric Bouillault, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Information – Technologies – Analyse Environnementale – Procédés Agricoles (UMR ITAP), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-SUPELEC-Centre National de la Recherche Scientifique (CNRS), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Inverse quadratic interpolation, Computer science, Trilinear interpolation, Bilinear interpolation, Stairstep interpolation, 010103 numerical & computational mathematics, [INFO.INFO-NA]Computer Science [cs]/Numerical Analysis [cs.NA], 01 natural sciences, Electronic, Optical and Magnetic Materials, Multivariate interpolation, 010101 applied mathematics, Nearest-neighbor interpolation, Mesh generation, Projection method, Bicubic interpolation, 0101 mathematics, Electrical and Electronic Engineering, Adaptive quadrature, Projection (set theory), Spline interpolation, Algorithm, ComputingMilieux_MISCELLANEOUS, Interpolation
Abstract: International audience; Mesh-to-mesh data transfer methods are evaluated in terms of not only accuracy but also the cost of computing time. Interpolation is a widely used method because of its simplicity. However, it suffers from a lack of precision when Lagrange elements are considered. Projection methods, which are more complex, are thus preferred, although they significantly increase the computational time as well as the memory cost. We propose a comparison between these two methods (interpolation and projection) applied to curl-conforming and div-conforming elements. It appears that interpolation is advantageous because of its simplicity and speed while giving results of the same order as the projection method. A process to accurately compute circulations along edges and fluxes through faces is proposed. It relies on an adaptive quadrature scheme which provides reliable results regardless of the variation of the initial solution.
Published: 2014
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15. Evaluation of shielding effectiveness of composite wall with a time domain discontinuous Galerkin method

Author: Axel Modave, Lionel Pichon, Mohamed Boubekeur, Christophe Geuzaine, Abelin Kameni Ntichi, Valentin Préault, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Materials science, Mathematical analysis, Composite number, Electromagnetic compatibility, 020206 networking & telecommunications, 010103 numerical & computational mathematics, 02 engineering and technology, Condensed Matter Physics, 01 natural sciences, Homogenization (chemistry), Electronic, Optical and Magnetic Materials, Homogeneous, Discontinuous Galerkin method, Frequency domain, Electromagnetic shielding, 0202 electrical engineering, electronic engineering, information engineering, Time domain, 0101 mathematics, Instrumentation
Abstract: International audience; This article presents a time domain discontinuous Galerkin method applied for solving the con-servative form of Maxwells' equations and computing the radiated fields in electromagnetic compatibility problems. The results obtained in homogeneous media for the transverse magnetic waves are validated in two cases. We compare our solution to an analytical solution of Maxwells' equations based on characteristic method. Our results on shielding effectiveness of a conducting wall are same as those obtained from analytical expression in frequency domain. The propagation in heterogeneous medium is explored. The shielding effectiveness of a composite wall partially filled by circular conductives inclusions is computed. The proposed results are in conformity with the classical predictive homogenization rules.
Published: 2013
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16. Méthode d'homogénéisation de matériaux composites pour la modélisation de boîtiers de blindage électromagnétique

Author: Préault, Valentin, Corcolle, Romain, DANIEL, Laurent, Pichon, Lionel, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Published: 2013

17. Influence of Skin Effect on Homogenization of Composite Materials : Application to Shielding Effectiveness

Author: Préault, Valentin, Corcolle, Romain, DANIEL, Laurent, Pichon, Lionel, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI]Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

18. Comparison Between Different Approaches in Homogenization : Mean-field Approach vs Full-field Approaches

Author: Corcolle, Romain, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

19. A Jiles-Atherton based hysteresis model for magnetic materials under complex magneto-mechanical loadings

Author: Bernard, Laurent, Mininger, Xavier, Daniel, Laurent, Leite, Jean V., Sadowski, Nelson, Batistela, Nelson J., ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

20. A 3D semi implicit method for computing the current density in bulk superconductors

Author: Kameni Ntichi, Abelin, Boubekeur, Mohamed, Alloui, Lotfi, Bouillault, Frédéric, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

21. Global sensitivity analysis of magneto-electric sensor model parameters

Author: Nguyen, Thu Trang, Clenet, Stéphane, DANIEL, Laurent, Mininger, Xavier, Bouillault, Frédéric, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

22. Application of the magneto-mechanical coupling to the prediction of deformation of non-oriented FeSi based transformers

Author: Ganet, Florent, Hubert, Olivier, Mininger, Xavier, Bouillault, Frédéric, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

23. 3D Modeling of Thin Resistive Sheets in the Discontinuous Galerkin Method for Transient Scattering Analysis

Author: Boubekeur, Mohamed, Kameni Ntichi, Abelin, Bernard, Laurent, Modave, Axel, Pichon, Lionel, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Abstract: International audience; This papers presents a modeling of thin resistive sheets. An interface condition is used to avoid the fine mesh. The electromagnetic fields are computed with a time domain Discontinuous Galerkin method in order to evaluate the shielding effectiveness. A 3D cavity is treated to illustrate the efficiency of the condition.
Published: 2013

24. Multi-physics simulations using single-physics software and generic coupling

Author: Journeaux, Antoine, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2013

25. Analysis of Transient Scattering from Nonperfectly Conductive Shields Using a Discontinuous Galerkin Method

Author: Boubekeur, Mohamed, Kameni Ntichi, Abelin, Bernard, Laurent, Pichon, Lionel, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

26. Evaluation of Shielding Effectiveness in the Time Domain using a DG Method with an Efficient PML

Author: Modave, Axel, Geuzaine, Christophe, Boubekeur, Mohamed, Pichon, Lionel, Kameni Ntichi, Abelin, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Abstract: International audience; Development of new electric and electronic devices leads to an increasing importance for solving electromagnetic compatibility problems. In particular, the optimization of radiated emissions is increasingly done through numerical modeling. In this context, numerical methods allow to evaluate the effectiveness of more and more elaborate shielding enclosures. We propose an application of the nodal Discontinuous Galerkin method to evaluate the effectiveness of composite shieldings in the time domain. This numerical method provides convenient advantages to deal with shielding problems. Firstly, heterogeneous media are naturally included in the discrete formulation. After, the method is famous to allow a massive parallelization for the numerical resolution. Finally, a resolution in the time domain allows to consider transient signals. The numerical scheme is firstly validated using an academic benchmark. In the same way, the PML used to truncate the computational domain is optimized and validated. Applications are then presented for homogeneous and composite shieldings. The preliminary results are in conformity with classical predictive rules.
Published: 2013

27. Semi-implicit 3D approach in a Discontinuous Galerkin Method for computing current density in superconductors

Author: Kameni Ntichi, Abelin, Bouillault, Frédéric, Geuzaine, Christophe, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2013

28. Numerical study of the relation between the thermal effect and the stability of the levitation system excited by an external source

Author: K. Ben Alia, S.M. Mimoune, Lotfi Alloui, J. Lévêque, Frédéric Bouillault, Laurent Bernard, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Groupe de Recherche en Electrotechnique et Electronique de Nancy (GREEN), Université de Lorraine (UL), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Physics, Superconductivity, High-temperature superconductivity, Numerical analysis, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Energy Engineering and Power Technology, Mechanics, Condensed Matter Physics, 01 natural sciences, Control volume, Electronic, Optical and Magnetic Materials, law.invention, Amplitude, law, Excited state, Magnet, Condensed Matter::Superconductivity, 0103 physical sciences, Levitation, Electrical and Electronic Engineering, 010306 general physics
Abstract: International audience; In this paper we present a numerical analysis of dynamic features of the levitation system generated by an interaction between a levitated permanent magnet (PM) and a high-Tc superconductor (HTSC) excited by an oscillatory external source where the thermal effect inside the superconductor is taken into account in a macro-model of superconductivity. The comportment is comprehensively displayed by comparing the dynamic responses of such systems in which the thermal effect in superconductor is and is not taken into account. The obtained results show that the thermal effect is related to the stability of the levitation system. This effect appears significantly in the case of unstable levitation systems. The results obtained show that the thermal effect and the stability of the levitation system depend mainly on some parameters related to the external source, such as the frequency and the amplitude of the applied external source. In this paper, the numerical problem is solved by using the control volume method (CVM) and the electromagnetic and thermal coupling is ensured by an alternate algorithm.
Published: 2013
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29. A Noniterative Method for Locating Soft Faults in Complex Wire Networks

Author: Layane Abboud, Andrea Cozza, Lionel Pichon, DRE - Département de Recherche en Electromagnétisme, EMG - Département Electromagnétisme - L2S, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-SUPELEC-Campus Gif, Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Engineering, Computer Networks and Communications, Wave propagation, Transposition (telecommunications), Aerospace Engineering, 02 engineering and technology, 01 natural sciences, Nondestructive testing, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Electrical and Electronic Engineering, Reflectometry, business.industry, soft faults, Geophysical prospection, 010401 analytical chemistry, 020206 networking & telecommunications, complex wire networks, time-reversal operator, 0104 chemical sciences, Fault location, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, non-iterative methods, Automotive Engineering, business
Abstract: International audience; Reflectometry-based methods are the standard choice for fault detection techniques in wire networks. While effective when dealing with simple networks and relatively hard faults, their results can be of more difficult interpretation if a network presents more than two branches. In this paper we propose the use of an alternative technique based on a coherent multi-port characterization of a network under test. The data thus collected are used to define excitation signals that will be focusing over the position of a fault, following a method already successfully applied in geophysical prospection techniques and non-destructive testing, namely the DORT method, based on the synthesis of time-reversed signals. It is shown that a direct transposition of this technique to wire networks is not possible, due to the guided nature of wave propagation in wire networks, leading to the impossibility of assuming a dominant direction of propagation, as opposed to the case of propagation in open media. A differential version of the DORT method is introduced, enabling an accurate identification of the original position of faults. Numerical and experimental results are presented to demonstrate the feasibility of this approach.
Published: 2013
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30. An optimum PML for scattering problems in the time domain

Author: Jonathan Lambrechts, Christophe Geuzaine, Abelin Kameni, Eric Delhez, Axel Modave, Lionel Pichon, UCL - SST/IMMC/MEMA - Applied mechanics and mathematics, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Scattering, Computer science, Truncation, 010103 numerical & computational mathematics, Condensed Matter Physics, 01 natural sciences, Finite element method, Electronic, Optical and Magnetic Materials, Domain (software engineering), 010101 applied mathematics, Perfectly matched layer, Discontinuous Galerkin method, Bounded function, Applied mathematics, Time domain, 0101 mathematics, Instrumentation
Abstract: International audience; In electromagnetic compatibility, scattering problems are defined in an infinite spatial domain, while numerical techniques such as finite element methods require a computational domain that is bounded. The perfectly matched layer (PML) is widely used to simulate the truncation of the computational domain. However, its performance depends critically on an absorption function. This function is generally tuned by using case-dependent optimization procedures. In this paper, we will present some efficient functions that overcome any tuning. They will be compared using a realistic scattering benchmark solved with the Discontinuous Galerkin method.
Published: 2013
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31. Strain-controlled magnetic domain wall propagation in hybrid piezoelectric/ferromagnetic structures

Author: Lei, N., Devolder, T., Agnus, G., Aubert, P., Daniel, L., Kim, J. -V, Zhao, W., Trypiniotis, Theodossis, Cowburn, R. P., Chappert, C., Ravelosona, D., Lecoeur, P., ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: geometry, Materials science, Kerr effect, Magnetoresistance, Magnetic domain, General Physics and Astronomy, magnetic field, anisotropy, 02 engineering and technology, electronic equipment, Bioinformatics, 01 natural sciences, 7. Clean energy, Article, General Biochemistry, Genetics and Molecular Biology, Condensed Matter::Materials Science, 0103 physical sciences, energy efficiency, 010302 applied physics, magnetic anisotropy, Multidisciplinary, hybrid, piezoelectricity, Spintronics, Magnetic logic, business.industry, electronics, article, integrated circuit, Magnetostriction, General Chemistry, 021001 nanoscience & nanotechnology, electric field, Magnetic anisotropy, Domain wall (magnetism), nanowire, Optoelectronics, 0210 nano-technology, business
Abstract: The control of magnetic order in nanoscale devices underpins many proposals for integrating spintronics concepts into conventional electronics. A key challenge lies in finding an energy-efficient means of control, as power dissipation remains an important factor limiting future miniaturization of integrated circuits. One promising approach involves magnetoelectric coupling in magnetostrictive/piezoelectric systems, where induced strains can bear directly on the magnetic anisotropy. While such processes have been demonstrated in several multiferroic heterostructures, the incorporation of such complex materials into practical geometries has been lacking. Here we demonstrate the possibility of generating sizeable anisotropy changes, through induced strains driven by applied electric fields, in hybrid piezoelectric/spin-valve nanowires. By combining magneto-optical Kerr effect and magnetoresistance measurements, we show that domain wall propagation fields can be doubled under locally applied strains. These results highlight the prospect of constructing low-power domain wall gates for magnetic logic devices., The use of electric fields to control the magnetization of ferromagnetic materials could enable more efficient electronics. Lei et al. show that by applying lateral strain to a magnetostrictive nanowire with a piezoelectric, voltage-controlled gating of magnetic domain wall motion in the wire can be achieved.
Published: 2013
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32. The Influence of Excitation Frequency on Magnetic Levitation Systems with a High-T c Superconductor

Author: Lotfi Alloui, Frédéric Bouillault, S.M. Mimoune, K. Ben Alia, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Superconductivity, Physics, Condensed matter physics, Numerical analysis, Condensed Matter Physics, 01 natural sciences, Displacement (vector), Electronic, Optical and Magnetic Materials, Physics::Fluid Dynamics, Physics::Popular Physics, Physics::Plasma Physics, Excited state, Magnet, Condensed Matter::Superconductivity, 0103 physical sciences, Levitation, 010306 general physics, Magnetic levitation, Excitation
Abstract: In this paper we present a numerical analysis of dynamic features of the levitation system generated by an interaction between a levitated permanent magnet (PM) and a high-T c superconductor (HTSC) excited by an oscillatory external source. The obtained results show that the value of the frequency (f free) of the PM displacement in the case of the levitation system generated by an interaction between a levitated PM and a fixed HTSC is equal at the resonance frequency (f re) of the levitation system generated by an interaction between a levitated PM and HTS excited by an oscillatory external source and the resonance frequency (f re) is mainly dependent upon the cooling position (Z 0) and the mass of the PM. The numerical problem in this paper is solved by using the control volume method (CVM).
Published: 2012
Full Text: View/download PDF

33. Vectorial magnetic hysteresis model taking into account the mechanical stress for use in 2D FEM

Author: Bernard, Laurent, Mininger, Xavier, DANIEL, Laurent, Leite, Jean V., Sadowski, Nelson, Batistela, Nelson J., COCODI - Equipe Conception, Commande et Diagnostic, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

34. Influence of Mechanical Boundary Conditions on Magnetoelectric Sensors

Author: Laurent Daniel, Frédéric Bouillault, Thu Trang Nguyen, Xavier Mininger, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Work (thermodynamics), Materials science, Condensed matter physics, Acoustics, Magnetoelectric effect, Magnetostriction, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Piezoelectricity, Electronic, Optical and Magnetic Materials, Magnetic field, 0103 physical sciences, Sensitivity (control systems), Boundary value problem, Electrical and Electronic Engineering, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Voltage
Abstract: International audience; Magnetic field sensors are an important application for magnetoelectric composite materials. In these devices the external magnetic field is converted into an electric voltage. The sensitivity of the sensor is known to depend on different factors, including geometrical and material parameters. This work deals with the modeling of the influence of mechanical boundary conditions on the sensitivity of magnetoelectric sensors.
Published: 2012
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35. Modeling of thin resistive sheets in the Ddscontinuous Galerkin method for shielding evaluation

Author: Boubekeur, M., Kameni Ntichi, Abélin, Bernard, Laurent, Pichon, Lionel, Modave, Axel, Gueuzaine, C., Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés (TIMA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Techniques of Informatics and Microelectronics for integrated systems Architecture (TIMA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-SUPELEC-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-SUPELEC-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-SUPELEC-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

36. Microstructure effects on the Shielding Effectiveness of Composite Materials

Author: Préault, Valentin, Corcolle, Romain, Daniel, Laurent, Pichon, Lionel, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Published: 2012

37. An analytical model for the stress-dependent susceptibility of magnetic materials

Author: DANIEL, Laurent, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

38. Design of a Hybrid Integrated EMC Filter for a DC-DC Power Converter

Author: Eric Laboure, Marwan Ali, Francois Costa, Bertrand Revol, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Engineering, business.industry, 020208 electrical & electronic engineering, Electromagnetic compatibility, Electrical engineering, 020206 networking & telecommunications, 02 engineering and technology, Filter (signal processing), 7. Clean energy, Electromagnetic interference, Printed circuit board, EMI, Black box, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Electrical and Electronic Engineering, business, Active filter, Realization (systems)
Abstract: International audience; This study focuses on the design and the realization of an integrated EMI filter embedded in an aircraft power supply. The first part of the study is dedicated to the modeling of the dc-dc power, based on a "black box" representation: the converter is represented by an association of sources and impedances that reflect its external EMI behavior. This initial step enables us to define the electrical structure of the filter and the component values; a hybrid solution (active plus passive) can be effective for optimal filtering while minimizing the size and mass. The second part of the study is devoted to its realization, based on the integration of capacitive and inductive components inside a printed circuit board structure. This technology is named hybrid integration. Some technological difficulties are highlighted regarding the geometry of the components and their manufacture using this technology. Finally, filter architecture is proposed and a functional prototype is realized. Experiments show that significant gains in volume are achieved while compliance with the DO 160 standard (aeronautics) is obtained.
Published: 2012
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39. Design, Modeling, and Analysis of a Compact Planar Transformer

Author: Goran Stojanovic, Mirjana Damnjanovic, Milan Radovanovic, Snezana M. Djuric, Eric Laboure, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Isolation transformer, Materials science, Acoustics, 020208 electrical & electronic engineering, Linear variable differential transformer, 02 engineering and technology, Distribution transformer, 01 natural sciences, Electronic, Optical and Magnetic Materials, Rotary transformer, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Autotransformer, Electrical and Electronic Engineering, Delta-wye transformer, Rotary variable differential transformer, Transformer types
Abstract: International audience; This paper presents a new design of a planar transformer. Over the surface of a flat core, meander-type design was engraved, so that symmetrically adjusted primary and secondary coils, of the same meander-type, can fit into the engraved design. Primary and secondary coils were covered with another flat core consequently forming a compact planar transformer. Windings of primary and secondary coils are printed on both sides of PCB. Conductive stripes of a winding from upper and bottom layer are connected by vias. The transformer was analyzed when the primary and secondary coils were without a core and with a core. High frequency parameters of the transformer were obtained by finite element modeling software and Impedance Analyzer HP4194A in the frequency range from 50 kHz to 1 MHz. The transformer is intended to be used in DC-DC converters (for switching frequency up to several hundred kHz).
Published: 2012
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40. Influence of amultiaxial stress on the reversible and irreversible magnetic behavior of an iron-silicon alloy

Author: Rekik, Mahmoud, Hubert, Olivier, DANIEL, Laurent, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Rekik, Mahmoud, Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), APERAM, and Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École normale supérieure - Cachan (ENS Cachan)
Subjects: multiaxial stress, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, iron-silicon alloy, reversible behavior, [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph], [SPI.MAT] Engineering Sciences [physics]/Materials, [SPI.MECA] Engineering Sciences [physics]/Mechanics [physics.med-ph], equivalent stress, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: 2 pages; This paper deals with the magnetic behavior of an iron-silicon thin sheet, submitted to biaxial stresses. It is well known that the magnetic behavior of a ferromagnetic material is sensitive to the microstructural state and / or application of a mechanical stress. Indeed, nonconventional experiments were performed on cruciform samples to approach the mechanical stress inside a rotating machines. The test presented in this paper has been carried out on the multiaxial testing machine ASTREE. Magnetic loading is ensured by single U-yoke. Measurements are carried out thanks to needle-B, H-coil sensors and Digital Image Correlation (DIC). Irreversible magnetic behavior is specially considered. Results show a major influence of stress level along the magnetization axis especially on shear case, when applied stresses along orthogonal axis are negative. The effects of biaxial stress on the magnetic dissipative properties of iron-silicon alloy are reported. Iso-stress changes in the coercive field Hc and power loses P are well described experimentally and they follow the same trends of the iso-values as the magnetic susceptibility X.
Published: 2012

41. Impact of command parameters on efficiency, torque ripple and vibrations for switched reluctance motor

Author: Guillaume Krebs, Xavier Mininger, Ali Kolli, Claude Marchand, COCODI - Equipe Conception, Commande et Diagnostic, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Engineering, business.industry, 020208 electrical & electronic engineering, 02 engineering and technology, Converters, computer.software_genre, 01 natural sciences, Switched reluctance motor, Reluctance motor, Simulation software, Vibration, Upgrade, Direct torque control, Control theory, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Torque ripple, business, computer
Abstract: International audience; This paper deals with the upgrade of MRVSIM, a simulation software for the design assistance of Switched Reluctance Machines with Double Saliency and their electronic converters. This tool is completed with the integration of a vibratory module, in order to evaluate the vibration of the structure, and next to optimize the current command of the machine regarding to such criterion. Motor efficiency, torque ripple and vibrations are then used as optimization criteria to evaluate the impact on the resulting optimized command.
Published: 2012
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42. Magnetic Forces and Vibrational Behavior Analysis for Flux Switching Permanent Magnet Machines

Author: Xavier Mininger, Mohamed Gabsi, François Louf, Javier Ojeda, Julien Boisson, Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010302 applied physics, Modal Analysis, Materials science, Stator, Modal analysis, 020208 electrical & electronic engineering, Mechanical engineering, Flux, Permanent Magnet Machines, Magnetic Stress, 02 engineering and technology, Deformation (meteorology), Finite Element, 01 natural sciences, Measure (mathematics), Vibration, Finite element method, law.invention, Flux Switching, [SPI]Engineering Sciences [physics], law, Magnet, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering
Abstract: International audience; This paper deals with the magnetic forces and the mechanical behavior of flux switching permanent magnet (FSPM) machines. First, we will focus on the origin of magnetic stresses in the FSPM machine. Secondly we will realize a FEM analysis to observe these stresses in two locations (at the air / teeth interface and at the permanent magnets / iron interface) when the FSPM machine is unloaded and loaded. Then, we will consider the expression of the stator deformation. Finally, eigenmodes of this structure obtained by FEM analysis will be presented and compared to experimental measure.
Published: 2012
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43. Evaluation of Torque-Speed Curve of Switched Reluctance Motor with Segmental Rotor

Author: M. B Belhadi, Guillaume Krebs, A. Kolli, Claude Marchand, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and COCODI - Equipe Conception, Commande et Diagnostic
Subjects: Physics, Electric motor, Rotor (electric), Squirrel-cage rotor, 020209 energy, 020208 electrical & electronic engineering, 02 engineering and technology, AC motor, Switched reluctance motor, Wound rotor motor, law.invention, Reluctance motor, Control theory, law, 0202 electrical engineering, electronic engineering, information engineering, Induction motor
Abstract: International audience; In the switched reluctance motor with segmental rotor (SRMS) the magnetic saliency of the rotor is due to a series of magnetic segments, which allow the magnetic flux to flow on short loops. In this paper, the study of this kind of SRM is carried out, and comparisons with a conventional switched reluctance motor (CSRM) are established. Two models based on 2D finite element method are used. In the first part, the descriptions of the two motors are briefly given. Secondly, some characteristics including field distributions, inductances, flux, electromagnetic torques and particularly torque-speed curves are compared. The taking into account of optimized control parameters and the large range of speed give special attention to the latter comparison.
Published: 2012
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44. Giant Magnetostrictive Materials for Field Weakening: A Modeling Approach

Author: Guillaume Krebs, Laurent Daniel, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), COCODI - Equipe Conception, Commande et Diagnostic, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and ICHAMS - Equipe Interaction Champs - Matériaux et Structures
Subjects: 010302 applied physics, Materials science, Mechanical engineering, Magnetostriction, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetic flux, Finite element method, Electronic, Optical and Magnetic Materials, law.invention, [SPI]Engineering Sciences [physics], Nuclear magnetic resonance, law, Electromagnetic coil, Magnet, 0103 physical sciences, Electric potential, Electrical and Electronic Engineering, 0210 nano-technology, Synchronous motor, Armature (electrical engineering)
Abstract: International audience; In this paper, a proposal for a field weakening method for a permanent-magnet synchronous motor is evaluated. The method consists in inserting giant magnetostrictive elements between permanent magnets. The magnetic permeability of these magnetostrictive parts is modified when the speed increases. The field leakages around the permanent magnets are consequently increased, thus reducing the electromotive forces in the armature windings. An original modeling approach, based on the concept of equivalent stress, is proposed in order to evaluate this field weakening solution.
Published: 2012
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45. Onduleur multicellulaire à ICT : équilibrage par la commande

Author: Fabien Adam, Cyrille Gautier, Bertrand Revol, Eric Labouré, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2012

46. Conception d'un correcteur RST adapté aux références sinusoïdales, appliqué à un convertisseur AC/DC

Author: Lacroix, Samantha, Hilairet, Mickaël, Labouré, Eric, COCODI - Equipe Conception, Commande et Diagnostic, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

47. An optimum PML for scattering problems in time-domain

Author: Modave, Axel, Delhez, Eric, Kameni Ntichi, Abélin, Pichon, Lionel, Geuzaine, Christophe, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

48. Magnets behavior in electro-mechanical system modelling: formulations and computation

Author: Journeaux, Antoine, Bossavit, Alain, Bouillault, Frédéric, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

49. Evaluation de léfficacité de blindage de parois hétérogènes par une méthode de Galerkin discontinue en domaine temporel

Author: Kameni Ntichi, Abélin, Modave, Axel, Boubekeur, Mohamed, Préault, Valentin, Pichon, Lionel, Geuzaine, Christophe, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), ICHAMS - Equipe Interaction Champs - Matériaux et Structures, and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

50. Modeling of magneto-elastic problems on disconnected meshes

Author: Wang, Zifu, Journeaux, Antoine, Henneron, Thomas, Bouillault, Frédéric, Roger, Jean-Yves, Mipo, Jean-Claude, Piriou, Francis, ICHAMS - Equipe Interaction Champs - Matériaux et Structures, Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

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