Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Advanced PWM Method for Reducing Common-Mode Noise in Converter/Inverter System

컨버터/인버터 시스템의 커먼 모드 노이즈 억제를 고려한 PWM 기법

  • Lee, Young-Min (School of Electrical Engineering, Seoul National University) ;
  • Lee, Hyeoun-Dong (School of Electrical Engineering, Seoul National University) ;
  • Sul, Seung-Ki (School of Electrical Engineering, Seoul National University)
  • 이영민 (서울대학교 전기공학부 전력전자 연구실) ;
  • 이현동 (서울대학교 전기공학부 전력전자 연구실) ;
  • 설승기 (서울대학교 전기공학부 전력전자 연구실)
  • Published : 1998.07.20
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Abstract

This paper proposes the advanced PWM method which can reduce common-mode voltage in 3 phase PWM converter/inverter system. By shifting the zero voltage vector of inverter in a sampling period, it is possible to cancel out a common-mode voltage pulse defined by switching functions of converter and inverter. Without any loss of control performance of converter/inverter system, overall common-mode voltage can be reduced by one-third compared with that of conventional PWM scheme.

Keywords