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Ogasawara, Satoshi Okayama University
Ayano, Hideki Okayama University
Akagi, Hirofumi Okayama University
This paper proposes an “active common-noise canceler (ACC)” that is capable of eliminating the common-mode voltage produced by a PWM inverter. An emitter follower using complementary transistors and a common-mode transformer are incorporated into the ACC, the design method of which is also presented in detail. A prototype ACC designed and constructed in this paper verifies the viability and effectiveness in a 3.7 kW induction motor drive using an IGBT inverter. Some experimental results show that the ACC makes significant contributions to reducing ground current and conducted EMI. In addition, the ACC can prevent electric shock on a ungrounded motor frame and can suppress motor shaft voltage
DC-AC power convertors
bipolar transistor switches
insulated gate bipolar transistors
power bipolar transistors
power semiconductor switches
Digital Object Identifier: 10.1109/PESC.1997.618067
Published with permission from the copyright holder. This is the institute's copy, as published in Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE, 22-27 June 1997, Volume 2, Pages 1547-1533.
Copyright © 1997 IEEE. All rights reserved.
Power Electronics Specialists Conference