open access

https://hdl.handle.net/2115/68965

Finite-Element Analysis of Magnetically Shielded Wire Coils Using Homogenization Method

英語

proximity effects

2018-03

IEEE (Institute of Electrical and Electronics Engineers)

IEEE transactions on magnetics

54(3)

7401104

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.

学術雑誌論文

Accepted Manuscript

© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

0018-9464