Cauer回路を用いた磁気特性モデリングに基づく圧粉磁芯の有限要素磁界解析

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2019/11/01

タイトル(英語): Finite-element Analysis of Soft Magnetic Composites using Dynamic Hysteresis Modeling based on Cauer Circuit Representation of Eddy-current Fields

著者名: 渡邉　直也（同志社大学理工学部電気工学科），髙橋　康人（同志社大学理工学部電気工学科），藤原　耕二（同志社大学理工学部電気工学科）

著者名(英語): Naoya Watanabe (Department of Electrical Engineering, Doshisha University), Yasuhito Takahashi (Department of Electrical Engineering, Doshisha University), Koji Fujiwara (Department of Electrical Engineering, Doshisha University)

キーワード: 軟磁性複合材料，有限要素法，磁気特性，Cauer回路，渦電流，シュール補元　　soft magnetic composites，finite-element method，magnetic property，Cauer circuit，eddy current，Schur complement

要約(英語): This paper proposes an efficient method to perform a finite-element analysis (FEA) of soft magnetic composites (SMC) by using a dynamic hysteresis modeling based on Cauer circuit representation for eddy-current fields. The FEA coupling with the equivalent circuit requires additional unknown variables, which results in large computational cost. To overcome the difficulty, we propose two approaches: one is the elimination of unknown variables corresponding to the equivalent circuit with the help of the Schur complement, and the other is the direct incorporation of the equivalent circuit into the finite-element formulation considering magnetic hysteresis. To demonstrate the effectiveness of the proposed methods, numerical results of a practical SMC-core reactor are presented.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.11 （2019） 特集：電磁界解析などの大規模数値計算技術

本誌掲載ページ: 643-649 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/139/11/139_643/_article/-char/ja/