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ID 34102
フルテキストURL
著者
Ogasawara, Satoshi Okayama University
Akagi, Hirofumi Okayama University
抄録

This paper presents an equivalent circuit for high-frequency leakage currents in pulsewidth modulation (PWM) inverter-fed AC motors, which forms a series resonant circuit. The analysis based on the equivalent circuit leads to such a conclusion that the connection of a conventional common-mode choke or reactor in series between the AC terminals of a PWM inverter and those of an AC motor is not effective to reduce the rms and average values of the leakage current, but effective to reduce the peak value. Furthermore, this paper proposes a common-mode transformer which is different in damping principle from the conventional common-mode choke. It is shown theoretically and experimentally that the common-mode transformer is able to reduce the rms value of the leakage current to 25%, where the core used in the common-mode transformer is smaller than that of the conventional common-mode choke

キーワード
AC motor drives
PWM invertors
circuit resonance
damping
equivalent circuits
inductors
leakage currents
resonance
transformers
備考
Digital Object Identifier: 10.1109/IAS.1995.530280
Published with permission from the copyright holder. This is the institute's copy, as published in Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE, 8-12 Oct. 1995, Volume 1, Pages 29-36.
Publisher URL:http://dx.doi.org/10.1109/IAS.1995.530280
Copyright © 1996 IEEE. All rights reserved.
発行日
1995-10
出版物タイトル
Industry Applications Conference
1巻
開始ページ
29
終了ページ
36
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Submission Path
electrical_engineering/20