영구자석 동기전동기의 토크 리플 저감 운전

Reduction of Torque Ripple of Permanent Magnet Synchronous Motor

  • 이동희 (부산대학교 전기공학과) ;
  • 이종희 (부산대학교 전기공학과) ;
  • 김영삼 (부산대학교 전기공학과) ;
  • 김지현 (부산대학교 전기공학과) ;
  • 권영안 (부산대학교 전기공학과)
  • 발행 : 2001.07.18

초록

PMSM drives are widely used in industrial and residential applications because of high efficiency, high power density and high performance. For better performance of PMSM, however, torque ripples should be reduced. This paper investigates a reduction of torque ripple due to the unsinusoidal flux linkage produced by the shapes of stator slot and magnetic pole. To minimize torque ripple, a simple flux estimator is proposed. This method iteratively compensates the distributed flux linkage from an error between the measured and estimated currents. The proposed algorithm is verified through simulation.

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