1. Numerical Evaluation of Circuit Model for Fast Computational Analysis of Resonant Wireless Power Transfer System
- Author
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F. M. Freitas, I. V. Soares, L. Krähenbühl, A. Bréard, C. Vollaire, S. T. M. Gonçalves, U. C. Resende, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Ampère, Département Automatique pour l'Ingénierie des Systèmes (AIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Ampère, Département Energie Electrique (EE)
- Subjects
Circuit model ,magnetic metamaterial ,resonance ,[SPI.NRJ]Engineering Sciences [physics]/Electric power ,wireless power transfer ,near field coupling ,LC metamaterial ,Electrical and Electronic Engineering ,Electronic, Optical and Magnetic Materials - Abstract
International audience; This paper proposes a circuit model to calculate the current along printed coils used in Resonant Wireless Power Transfer. It considers a system composed of a metamaterial and two coplanar coils, transmitter and receiver, respectively. First, a circuit model for the system is presented. Then, an analytical model is proposed to calculate the self-inductance of printed inductors, their characteristic resistance, and the mutual inductance between coils. The proposed formulation for calculating the mutual inductance between inductors is based on Neumann’s formula. The practical results validate the model precision, obtaining a maximum deviation of approximately 8%, 3%, and 3%, respectively. Due to the generality of this approach, it can also be applied to more complex structures such as metasurfaces. The proposed 3-D models proved to be ideal for modeling the printed inductor. Furthermore, this model proved to be computationally more efficient for analyzing large systems when compared to commercial full-wave simulation software, with a reduction in the computational time larger than three orders of magnitude.
- Published
- 2023