Control Method of the Three-phase VSI for 200KVA UPS

200KVA급 UPS용 3상 전압형 인버터의 제어기법

  • 유병우 (충북대학교 전기전자공학부) ;
  • 이상훈 (충북대학교 전기전자공학부) ;
  • 최재호 (충북대학교 전기전자공학부) ;
  • 최창호 (포스콘기술연구소)
  • Published : 1997.07.21

Abstract

In this paper, control scheme of the three phase VSI(Voltage Source Inverter) for 200KVA UPS is described. The proposed controller is designed to robust against parameter variations, disturbances and load change using PI controller. The switching pattern is determined to Ramp Comparison Method. The inverter provides pure sinusoidal output voltage with very low THD (Total Harmonic Distortion). Finally, the performance of the proposed inverter is shown by experimental result.

Keywords