Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A Current Control Algorithm for Torque Ripple Reduction of Four-Switch Three-Phase Brushless DC Motors

4스위치 3상 BLDC 전동기의 토크 리플 저감을 위한 전류제어 알고리즘

  • Park S.H. (Dept. of Electrical Engineering, Hanyang Univ) ;
  • Kim T.S. (Dept. of Electrical Engineering, Hanyang Univ) ;
  • Lee B.K. (Korea Electrotechnology Research Institute) ;
  • Hyun D.S. (Dept. of Electrical Engineering, Hanyang Univ)
  • Published : 2003.07.01
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Abstract

In this paper, a new current control algorithm is proposed for four-switch three-phase brushless DC(BLU) motor drives, which are suitable for low cost applications. A current reference generation scheme is developed and Implemented to obtain high performance characteristics in the four-switch system, such as small torque ripple and fast dynamic speed/torque response. Moreover, the proposed scheme can successful1y eliminate the torque ripple during commutations, so that it can be expected that the four-switch system can be much more practically applied for the industrial application areas.

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