수산해양교육연구 (Journal of Fisheries and Marine Sciences Education)
- 제9권2호
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- Pages.209-221
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- 1997
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- 1229-8999(pISSN)
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- 2288-2049(eISSN)
새로운 고효율 역율보상 단상 PWM AC/DC 컨버터
A New High Efficiency Power Factor Correction PWM Rectifier with Reduced Conduction Loss and No Auxiliary Switches
초록
This paper presents a soft switching unity power factor PWM rectifier, which features reduced conduction losses and soft switching with no auxiliary switches. The soft switching are achieved by using a simple commutation circuit with no auxiliary switches, and reduced conduction loses are achieved by employing a single converter, instead of a typical front end diode rectifier followed by a boost rectifier. Furthermore, thanks to good features such as simple PWM control at constant frequency, low switch stress and low VAR rating of commutation circuits, it is suitable for high power applications. The principle of operation is explained in detail, and major characteristics analysis and experimental results of the new converter also included.