インバータ駆動ブラシレスDCモータの非接地コモンモード等価回路に基づく軸電圧抑制

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2012/06/01

タイトル(英語): Approaches to Suppressing Shaft Voltage in Brushless DC Motor Driven by PWM Inverter Based on Ungrounded Common-Mode Equivalent Circuit

著者名: 前谷　達男（パナソニック（株）），礒村　宜典（パナソニック（株）），渡辺　彰彦（パナソニック（株）），飯盛　憲一（鹿児島大学），森本　茂雄（大阪府立大学）

著者名(英語): Tatsuo Maetani (Panasonic Corporation), Yoshinori Isomura (Panasonic Corporation), Akihiko Watanabe (Panasonic Corporation), Kenichi Iimori (Kagoshima University), Shigeo Morimoto (Osaka Prefecture University)

キーワード: 軸電圧，ベアリング電流，コモンモード電圧，浮遊容量　　shaft voltage，bearing current，common-mode voltage，stray capacitance

要約(英語): This paper describes an ungrounded common-mode equivalent circuit for a motor driven by a voltage-source PWM inverter. When the capacitance of the rotor was is small, the reversal of the polarities of the common-mode voltage and shaft voltage is observed. In order to model this reversal, a bridge-type equivalent circuit is proposed. On the basis of calculations and experiment, it is found the values and polarity of the shaft voltage can be are accurately determined with the proposed equivalent circuit. Furthermore, the capacitance value of the insulated rotor required to make the shaft voltage equal to or less than the dielectric breakdown voltage of the bearing grease is obtained.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.132 No.6 （2012）

本誌掲載ページ: 666-672 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/ieejias/132/6/132_666/_article/-char/ja/