Compensation of Offset Current and Motor Asymmetry for High Performance Speed Control

고성능 속도 제어를 위한 옵셋 전류와 전동기 상불평형 보상

  • Chung, Dae-Woong (School of Electrical Engineering, Seoul National University) ;
  • Sul, Seung-Ki (School of Electrical Engineering, Seoul National University)
  • 정대웅 (서울대학교 공과대학 전기공학부) ;
  • 설승기 (서울대학교 공과대학 전기공학부)
  • Published : 1995.11.18

Abstract

The non-ideal elements inherent in all categories of AC drives have a significant influence on the performance of speed control. For the high performance of speed control, these non-ideal elements must be considered. This paper discusses the side effects of non-ideal elements such as the offset current of A/D converter, asymmetry of motor and so on and proposes simple compensation methods which are also applicable to any kinds of the motor drive systems. In the experimental results, it is observed that the proposed compensation methods improve the performance of speed control.

Keywords