멀티레벨 인버터를 위한 간략화된 공간 전압벡터 변조 방안

Simplified Space Vector PWM Method for Multi-level Inverters

  • 서재형 ((주)포스콘 기술연구소) ;
  • 송영주 ((주)포스콘 기술연구소) ;
  • 김광섭 ((주)포스콘 기술연구소) ;
  • 이철구 ((주)포스콘 기술연구소) ;
  • 방상석 ((주)포스콘 기술연구소) ;
  • 최창호 ((주)포스콘 기술연구소) ;
  • 현동석 (한양대학교 전기공학과)
  • 발행 : 1998.07.20

초록

The multi-level approach seems to be best suited to high power, high voltage ac drives with low torque ripple and fast dynamic response. If high control performance is required, space vector control becomes desirable, and the task becomes time critical. In this paper, a simplified space vector PWM method for the control of a three level inverter is proposed. As the PWM is simple in structure, it is easy to implement and the fluctuation of the neutral point potential of DC link can be supressed effectively. The simulation results demonstrate that the proposed PWM strategy can be applied to high power, high voltage inverter systems. And its application to multi-level inverter is easily done on the same principle.

키워드