한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)

한국철도학회 (The Korean Society for Railway)
권호 표지

2상 풀브릿지 인버터의 정적 과변조 기법

Static Overmodulation Strategies of Two Phase Full Bridge Inverter

  • 최승철 (건국대학교, 전기공학과) ;
  • 이병송 (철도기술연구원, 주행추진연구실) ;
  • 박찬배 (철도기술연구원, 주행추진연구실) ;
  • 목형수 (건국대학교, 전기공학과) ;
  • 김상훈 (강원대학교, 전기전자공학과) ;
  • 김영기 (건국대학교, 전기공학과)
  • 발행 : 2010.06.10
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초록

In this paper, the static overmodulation is proposed for the 2-phase full bridge inverter. The overmodulation strategy increases a fundamental output voltage and improves a voltage utilization up to the maximum in the overmodulation range. The linear modulation range and static overmodulation range are defined in the 2-phase full bridge inverter. The overmodulation strategies which increase a voltage utilization until the 4-step mode by linearization of the output voltage in overmodulation range are proposed. To maintain a linearity of the relation between a reference voltage and a fundamental output voltage, this paper suggests a compensation voltage, whose magnitude or phase is modified to the proposed control scheme. Simulation and experimentation results demonstrate the effectiveness of the proposed algorithms.

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