Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Analysis and Compensation of PWM-VSI Non-linearity Output Characteristics

PWM-VSI 비선형 출력특성에 대한 해석 및 보상 방법

  • 이정표 (LG 산전주식회사 자동화 연구팀) ;
  • 김준형 (LG 산전주식회사 자동화 연구팀) ;
  • 박철현 (LG 산전주식회사 자동화 연구팀) ;
  • 김호근 (LG 산전주식회사 자동화 연구팀) ;
  • 엄주경 (LG 산전주식회사 자동화 연구팀) ;
  • 최경수 (LG 산전주식회사 자동화 연구팀)
  • Published : 1999.07.01
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Abstract

The AC drive systems of a voltage source inverter and an induction motor. The inverter non linearity caused by the turn on/off time dependency of the current level in the switching IGBT is described in the first part of this paper. To improve the low-speed drive characteristics, accurate applied voltage calculation is proposed under considerations of the compensations for the quantization error in the digital controller, the forward voltage drop of switching drives and the dead time of the inverter. The experimental studies show the improved drive characteristics.

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