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Finite-Element Analysis of Magnetically Shielded Wire Coils Using Homogenization Method
- Source :
- IEEE Transactions on Magnetics. 54:1-4
- Publication Year :
- 2018
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2018.
-
Abstract
- A magnetically shielded wire (MSW), which has magnetic-conductive thin layers on the surface of a wire conductor, is expected to reduce the eddy current losses due to the proximity effect. The conventional finite-element method (FEM) needs unacceptably long computational time to analyze eddy currents in multi-turn MSWs. This paper proposes a homogenization method, which models MSW as a uniform material with complex permeability. The coil impedance evaluated by the homogenization-based FEM with coarse elements is shown to agree well with that obtained by the conventional FEM with much finer elements. Moreover, the optimal shield thickness is determined by the proposed method.
- Subjects :
- 010302 applied physics
Materials science
Complex permeability
020208 electrical & electronic engineering
magnetically shielded wire (MSW)
02 engineering and technology
Mechanics
proximity effects
01 natural sciences
Homogenization (chemistry)
Finite element method
Electronic, Optical and Magnetic Materials
law.invention
Conductor
Electromagnetic coil
law
0103 physical sciences
Electromagnetic shielding
Shielded cable
0202 electrical engineering, electronic engineering, information engineering
Eddy current
homogenization method
Electrical and Electronic Engineering
Electrical impedance
Subjects
Details
- ISSN :
- 19410069 and 00189464
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Magnetics
- Accession number :
- edsair.doi.dedup.....bfdc66ec4a3efe1a469fe8eef5f73ecc
- Full Text :
- https://doi.org/10.1109/tmag.2017.2758445