The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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An Overmodulation Strategy for SVPWM Inverter Using Pole Voltage

폴전압을 이용한 SVPWM 인버터의 과변조 기법

  • Published : 2002.04.01
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Abstract

In this paper, a novel overmodulation strategy for space-vector PWM(SVPWM) inverters to utilize dc link voltage fully Is presented. The proposed strategy uses the concept of SVPWM based on the zero sequence signal(offset voltage) injection principle. So, by modifying the pole voltage simply, the linear control of inverter output voltage over the whole overmodulation range can be achieved easily The proposed strategy is so simple that its practical implementation is easy. The validity of the proposed strategy is confirmed by the experimental results.

본 논문에서는 공간벡터 PWM(SVPWM) 인버터에서 직류단 전압을 최대로 이용하기 위한 새로운 과변조 기법을 제안한다. 제안된 기법은 영-시퀀스 신호인 옵셋 전압 주입 원리에 근거한 SVPWM의 개념을 사용하였다. 제안된 과변조 기법에서는 폴전압을 간단히 수정함으로써 과변조 영역 전반에 걸터 인버터의 출력전압을 선형적으로 제어할 수 있게 하였다. 제안된 기법은 시뮬레이션과 실험을 통하여 그 타당성을 확인하였다.

Keywords

References

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