Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

COMMON-MODE VOLTAGE PULSE CANCELLATION METHOD BASED ON SPACE-VECTOR PWM IN CONVERTER-INVERTER SYSTEM

  • Lee, Hyeoun-Dong (School of Electrical Engineering, Seoul National university, Seoul Korea) ;
  • Sul, Seung-Ki (School of Electrical Engineering, Seoul National university, Seoul Korea)
  • Published : 1998.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper proposes the advanced PWM method that can reduce common-mode voltage in three-phase PWM converter-inverter system. By the proper distribution of the zero-voltage vector of inverter, it is possible to cancel out a common-mode voltage pulse in a sampling period. Since the proposed PWM method maintains the effective-voltage vector, it does not affect the control performance of converter-inverter system. Without any extra hardware, overall common-mode voltage can be decreased by one-third compared with conventional PWM scheme.

Keywords