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Semi-Analytical Approach for Finite-Element Analysis of Multi-Turn Coil Considering Skin and Proximity Effects
| Title: | Semi-Analytical Approach for Finite-Element Analysis of Multi-Turn Coil Considering Skin and Proximity Effects |
| Authors: | Igarashi, Hajime Browse this author →KAKEN DB |
| Keywords: | Skin effect | | proximity effect | | eddy current | | homogenization | | complex permeability | | multi-turn coil |
| Issue Date: | Jan-2017 |
| Publisher: | IEEE |
| Journal Title: | IEEE Transactions on Magnetics |
| Volume: | 53 |
| Issue: | 1 |
| Start Page: | 7400107 |
| Publisher DOI: | 10.1109/TMAG.2016.2601066 |
| Abstract: | Native application of finite element method (FEM) to analysis of skin and proximity effects in multi-turn coils results in large equation systems whose solution needs long computational time. This paper proposes a semi-analytical approach to overcome this problem. For analysis of the proximity effect, the complex permeability of a round conducting wire immersed in uniform time-harmonic magnetic fields is represented in a closed form. Then, the homogenized complex permeability over the cross section of the multi-turn coil is analytically evaluated using the Ollendorff formula. The magnetoquasistatic problem is thus replaced by the magnetostatic one in which the multi-turn coil is treated as a uniform material with the homogenized complex permeability. The skin effect is taken into consideration by introducing the corresponding impedance in the circuit equation. The proposed method is shown to give the impedance of multi-turn coils which is in good agreement with that obtained by conventional FEM as well as experiments. |
| Rights: | © 2016 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. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/64396 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 五十嵐 一
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