Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Torque Ripple Reduction Drive Strategy for Permanent Magnet Brushless DC Motor with Imperfect Back Electromotive Force

역기전력을 고려 한 브러시레스 전동기의 토크리플 저감에 관한 구동 방식에 대한 연구

  • 손도 (창원대학교 전기공학과) ;
  • 남기용 (창원대학교 전기공학과) ;
  • 이근호 (창원대학교 전기공학과) ;
  • 홍정표 (창원대학교 전기공학과)
  • Published : 2006.07.12
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Abstract

This paper presents a drive strategy to reduce torque ripple of a permanent magnet Brushless DC Motor(BLDCM) with short $120^{\circ}$ flat top Back Electromotive Force(Back-EMF). In this strategy, the phase Back-EMF is divided into four sections. Then, in each section the phase current is regulated by corresponding PWM duty ratio to compensatethe torque ripple caused by imperfect Back-EMF. A program based on this strategy has been implemented in MATLAB@Simulink. The validity of the presented method is verified by simulation results.

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