Large-scale Eddy-current analysis of conductive frame of large-capacity inverter by hybrid finite element-boundary element method

Takuya Tatsuishi, Yasuhito Takahashi, Shinji Wakao*, Masayuki Tobita, Isamu Tominaga, Hidehiko Kikuchi

*この研究の対応する著者

研究成果査読

7 被引用数 (Scopus)

抄録

This paper reports a large-scale eddy-current analysis of conductive frame of large-capacity inverter. The eddy-current loss obtained by the electromagnetic field analysis is used as a heat source for the thermal analysis. Then, the suitable configuration of the frame for the suppression of temperature increase is investigated and designed. The hybrid finite-element and boundary-element (FE-BE) method is very suitable for the analysis of a complicated-shaped frame because it does not require mesh division for a free space and can easily treat eddy current. For the reduction of large computational costs, the fast multipole method (FMM) is introduced. Furthermore, in order to improve the convergence characteristic of iterative methods for system matrix, we develop the application of the IDR(s) method to the minor iterative preconditioning technique (MIP) and evaluate the performance. Finally, some numerical results that demonstrate the effectiveness of the developed method are presented.

本文言語English
論文番号4787464
ページ(範囲)972-975
ページ数4
ジャーナルIEEE Transactions on Magnetics
45
3
DOI
出版ステータスPublished - 2009 3 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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