The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on the Design of Step Up DC-DC Converter and Parallel Operation

승압형 DC-DC 컨버터의 설계 및 병렬운전에 관한 연구

  • 서광덕 (현대중전기 기술연구소) ;
  • 홍찬욱 (서울대 대학원 전기공학과) ;
  • 설승기 (서울대 공대 전기공학과) ;
  • 박민호 (서울대 공대 전기공학과)
  • Published : 1992.06.01

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Abstract

This paper is to study on the step-up DC-DC converter for power system which yields output characteristics of low voltage and high current, such as fuel cell generation system. DC-AC-DC scheme is suggested for high ratio of voltage conversion. Three phase MOSFET-SPWM inverter is adopted for intermediate AC conversion and inverter output frequency is chosen at 400[Hz] in order to reduce the size of magnetic circuit and DC filter. Since control strategy which combines voltage controller with current controller in parallel is used, good output performance is obtained both in steady state and in transient state like load variation, not only in single unit operation but also in parallel operation.

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