Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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High Power Factor Three-phase AC-DC Flyback Converter Module Using Zero Voltage Switching

영전압 스위칭을 이용한 고역률 3상 AC-DC Flyback 컨버터 모듈

  • Lee, J.P. (Dept. of Electrical Eng. Korea Univ.) ;
  • Choi, J.Y. (KIST Intelligent System Control Research Center) ;
  • Song, J.H. (KIST Intelligent System Control Research Center) ;
  • Choy, I. (KIST Intelligent System Control Research Center) ;
  • Yoon, T.Y. (Dept. of Electrical Eng. Korea Univ.)
  • 이종필 (고려대학교 전기공학과) ;
  • 최주엽 (한국과학기술연구원 지능제어연구센터) ;
  • 송중호 (한국과학기술연구원 지능제어연구센터) ;
  • 최익 (한국과학기술연구원 지능제어연구센터) ;
  • 윤태웅 (고려대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

A new mode of parallel operation of a modular 3-phase AC-DC Flyback converter for high power factor correction along with tight regulation is presented in this thesis. The converter offers input/output transformer isolation for safety, a unity input power factor for minimum reactive power, high efficiency and high power density for minimum weight and volume. Compared with previously developed 3-phase two-stage power converter, the advantage of the proposed converter does not require expensive high voltage and high current devices that are normally needed in popular boost type 3-phase converter. In this paper, a detailed small signal analysis of the modular 3-phase AC-DC flyback converter is provided for control purposes and also experimental results are included to confirm the validity of the analysis.

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