Second Order Approximation of Nonlinear Eddy-Current Fields Using Cauer Ladder Network

カテゴリ: 研究会(論文単位)

論文No: SA23008,RM23008

グループ名: 【B】電力・エネルギー部門 静止器/【D】産業応用部門 回転機合同研究会

発行日: 2023/02/27

タイトル(英語): Second Order Approximation of Nonlinear Eddy-Current Fields Using Cauer Ladder Network

著者名: Eskandari Hamed(Science Solutions International Laboratory, Inc.),Kaimori Hiroyuki(Science Solutions International Laboratory, Inc.),Matsuo Tetsuji(Kyoto University)

著者名(英語): Hamed Eskandari(Science Solutions International Laboratory, Inc.),Hiroyuki Kaimori(Science Solutions International Laboratory, Inc.),Tetsuji Matsuo(Kyoto University)

キーワード: Ｆｉｎｉｔｅ　ｅｌｅｍｅｎｔ　ｍｅｔｈｏｄ　（ＦＥＭ）|ｍｏｄｅｌ　ｏｒｄｅｒ　ｒｅｄｕｃｔｉｏｎ　（ＭＯＲ）|ｎｏｎｌｉｎｅａｒ　ｅｄｄｙ－ｃｕｒｒｅｎｔ　ｐｒｏｂｌｅｍ，|ｐａｒａｍｅｔｒｉｃ　Ｃａｕｅｒ　ｃｉｒｃｕｉｔ|Finite element method (FEM)|model order reduction (MOR)|nonlinear eddy-current problem,|parametric Cauer circuit

要約(日本語): In this paper, a second order approximation is proposed for nonlinear quasi-static eddy-current problems via parametric Cauer Ladder Network (CLN) method. Through the CLN method, an orthogonal sequence of electric and magnetic modes along with the equivalent circuit parameters are generated by magnetostatic finite element analysis. When there are nonlinear materials in the medium, the modes and their corresponding values in equivalent circuit may vary according to the core's saturation level. This paper introduces a new algorithm to generate second-order CLN (SO-CLN) based on intensity of the first and second magnetic modes. Additionally proper handling of circuit equations is also included. Numerical tests are carried out over a 2-D nonlinear inductor with bulk type conductive magnetic core to show the accuracy of the proposed nonlinearization method.

要約(英語): In this paper, a second order approximation is proposed for nonlinear quasi-static eddy-current problems via parametric Cauer Ladder Network (CLN) method. Through the CLN method, an orthogonal sequence of electric and magnetic modes along with the equivalent circuit parameters are generated by magnetostatic finite element analysis. When there are nonlinear materials in the medium, the modes and their corresponding values in equivalent circuit may vary according to the core's saturation level. This paper introduces a new algorithm to generate second-order CLN (SO-CLN) based on intensity of the first and second magnetic modes. Additionally proper handling of circuit equations is also included. Numerical tests are carried out over a 2-D nonlinear inductor with bulk type conductive magnetic core to show the accuracy of the proposed nonlinearization method.

本誌: 2023年3月2日-2023年3月3日静止器/回転機合同研究会-1

本誌掲載ページ: 39-43 p

原稿種別: 英語

PDFファイルサイズ: 1,004 Kバイト