Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A Novel Voltrol Method of Three-Phase PWM Inverter for UPS Application

UPS 응용을 위한 3상 PWM 인버터의 새로운 전압 제어 방법

  • 이영조 (경상대학교 제어계측공학과, 자동화 및 컴퓨터응용기술연구소) ;
  • 박남주 (경상대학교 제어계측공학과, 자동화 및 컴퓨터응용기술연구소) ;
  • 임철우 (경상대학교 제어계측공학과, 자동화 및 컴퓨터응용기술연구소) ;
  • 정세교 (경상대학교 제어계측공학과, 자동화 및 컴퓨터응용기술연구소)
  • Published : 1999.07.01
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Abstract

This paper describes a novel control method of a three-phase PWM inverter for uninterruptible power supply(UPS) applications. To obtain the fast dynamics and excellent harmonic characteristics, a new state feedback control technique is proposed. The proposed control consists of the inner-loop current and outer-loop voltage controllers with a load current estimator to reduce the effects of the load variations and nonlinearity. In order to verify the effectiveness of the proposed control, the simulation is carried out for various load condition.

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