A New Dead-time Compensation Method using Disturbance Observer

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  • 김현수 (한국과학기술원 전기 및 전자공학과) ;
  • 문형태 (한국과학기술원 전기 및 전자공학과) ;
  • 김명복 (한국과학기술원 전기 및 전자공학과) ;
  • 윤명중 (한국과학기술원 전기 및 전자공학과)
  • Published : 1999.07.01

Abstract

A new dead-time compensation method using a disturbance observer is proposed. The dead-time causes the voltage distortion and it can be considered as the disturbance voltage. In this paper, the disturbance voltage is estimated by minimal order observer in the d-q frame and the estimated disturbance voltage is summed with voltage command by a feed-forward. The experiments are carried out for the DSP-based BLDC motor drive system and the results show the effectiveness of the proposed method.

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