Abstract—This paper proposes an active common-noise can-celer (ACC) that is capable of eliminating the common-mode volt-age produced by a pulsewidth modulation (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. Experiments using a prototype ACC, whose design and construction are discussed in this paper, verify its viability and effectiveness in eliminating common-mode voltage in a 3.7-kW induction motor drive using an insulated gate bipolar transistor (IGBT) inverter. Some experi-mental results show that the ACC makes significant contributions to reducing a ground current and a conducted electromagnetic

文摘：本文提出了一種積極的common-noise canceler(ACC)，可以由pulsewidth調(diào)制(PWM)逆變器消除共模電壓。一個(gè)發(fā)射器追隨者使用互補(bǔ)晶體管和一種常見模式變壓器歸并為ACC，
其設(shè)計(jì)方法總是被較為詳細(xì)的提出。實(shí)驗(yàn)使用一個(gè)原型ACC,其設(shè)計(jì)和結(jié)構(gòu)在本文中進(jìn)行了討論,驗(yàn)證其可行性和更有效的參與消除共模電壓在3.7-kW，使用一個(gè)隔離門雙極性電晶體(IGBT)逆變器的感應(yīng)電動(dòng)機(jī)調(diào)速系統(tǒng)中。一些實(shí)驗(yàn)結(jié)果表明,該ACC在減少地進(jìn)行電流與磁力干涉(EMI)上作出了重大的貢獻(xiàn)。此外,此次ACC可以預(yù)防在不接地電機(jī)機(jī)架上的電子沖擊,能有效抑制電機(jī)機(jī)架電機(jī)軸電壓。

interference (EMI). In addition, the ACC can prevent an electric
shock on a nongrounded motor frame and can suppress motor
shaft voltage.