The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis and Design of Interleaved Boost Power Factor Corrector on Two Stage AC/DC PFC Converter

2단 역률보상회로를 구성하는 Interleaved 승압형 컨버터의 해석 및 설계

  • 허태원 (동서대 전기공학과) ;
  • 손영대 (동서대 정보시스템공학부) ;
  • 김동완 (동명대학 전기전자계열) ;
  • 김춘삼 (삼척대 전기제어공학부) ;
  • 박한석 (부경대 전기제어계측공학부) ;
  • 우정인 (동아대 전기전자컴퓨터공학부)
  • Published : 2003.07.01
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Abstract

In this paper, interleaved boost converter is applied as a first-stage converter in switch mode power supply. The first-stage converter plays a role to improve power factor. Interleaved Boost Power Factor Corrector(IBPFC) can reduce input current ripple as a single voltage control loop only without inner current loop, because input current is divided each 50% by two switching devices. Each converter cell is also operated in discontinuous current mode and inductor current of each converter is discontinuous. Total input current which is composed by each converter cell is continuous current. Thus, IBPFC is able to improve input current ripple. IBPFC operating in discontinuous current mode can be classified as six modes from switching state and be carried out state space averaging small signal modeling. A control transfer function is obtained according to the modeling. Not only steady-state characteristics but also dynamic characteristics is considered. Single voltage control loop is also constructed by the control transfer function. From experimental result, improvement of power factor and input current ripple are verified.

Keywords

References

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