Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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DC Ripple-Voltage Suppression in three Phase BUCK DIODE Rectifiers with Unity Power Factor

단위 역률을 갖는 3상 BUCK 다이오드 정류기에서의 DC 리플-전압 저감

  • Lee, D.Y. (Dept. of Electrical Eng. HanYang Univ.) ;
  • Song, J.H. (KIST Intelligent System Control Research Center) ;
  • Choi, J.Y. (KIST Intelligent System Control Research Center) ;
  • Choy, I. (KIST Intelligent System Control Research Center) ;
  • Kim, G.B. (KIST Intelligent System Control Research Center) ;
  • Hyun, D.S. (Dept. of Electrical Eng. HanYang Univ.)
  • 이동윤 (한양대학교 전기공학과) ;
  • 송중호 (한국과학기술연구원 지능제어연구센터) ;
  • 최주엽 (한국과학기술연구원 지능제어연구센터) ;
  • 최익 (한국과학기술연구원 지능제어연구센터) ;
  • 김광배 (한국과학기술연구원 지능제어연구센터) ;
  • 현동석 (한양대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

A technique to suppress the low frequency ripple voltage of the DC output voltage in three-phase buck diode rectifiers is presented. A pulse frequency modulation method is employed to regulate the output voltage of the rectifier and guarantee zero-current switching of the switch over the wide operating range. The pulse frequency control method used in this paper shows generally good performance such as low THD of the input line current and unity power factor. In addition, the pulse frequency method can be effectively used to suppress the low frequency voltage ripple appeared in the dc output voltage. The proposed technique illustrates its validity and effectiveness through the respective simulations and experiments.

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