カテゴリ: 論文誌(論文単位)グループ名: 【D】産業応用部門（英文）発行日: 2019/01/01タイトル(英語): Effectiveness of Convolutional Perfectly Matched Layer in Time-domain Numerical Analysis of Low-frequency Wireless Power Transfer著者名: Hiroki Ishida (Department of Applied Physics, Okayama University of Science), Tomoaki Kyoden (National Institute of Technology, Toyama College, Imizu Campus), Hiroto Furukawa (National Institute of Technology, Toyama college, Hongo Campus)著者名(英語): Hiroki Ishida (Department of Applied Physics, Okayama University of Science), Tomoaki Kyoden (National Institute of Technology, Toyama College, Imizu Campus), Hiroto Furukawa (National Institute of Technology, Toyama college, Hongo Campus)キーワード: wireless power transmission，FDTD method，super low frequency，convolutional perfectly matched layer要約(英語): In this study, the absorption boundary conditions (ABCs) in electromagnetic field numerical analysis were investigated to improve the estimation accuracy of the magnetic coupling coefficient (k) for wireless power transfer (WPT). When using Berenger's perfectly matched layer (B-PML), the estimation accuracy of the k value was higher than that obtained using Mur's ABC. However, in the low-frequency band, at around 400Hz, the magnetic field was not sufficiently attenuated in the absorption layer. There was also a problem with numerical stability. To solve these problems, we introduce the convolutional perfectly matched layer (C-PML). In this study, we propose a simple Debye distribution function as the matrix coefficient of the stretch coordinate metric. As a result, it was possible to evolve from B-PML to C-PML simply by adding a proportional coefficient γ. With the introduction of C-PML, the magnetic field was sufficiently attenuated in the absorption layer, and the numerical stability dramatically improved. C-PML is thus useful for low-frequency WPT simulation.本誌: IEEJ Journal of Industry Applications Vol.8 No.1 （2019）本誌掲載ページ: 131-139 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/1/8_131/_article/-char/ja/
