한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)

한국정밀공학회 (Korean Society for Precision Engineering)
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BLDC 전동기의 토크리플 저감에 대한 연구

Research of Torque Ripple Reduction of BLDC Motor

  • Nam K.Y. (Applied Supperconductivity Group, KERI) ;
  • Hong J.P. (Dept. of Electrical Engineering, CNU) ;
  • Lee C.M. (Dept. of Mechanical Manufacturing Design, CNU) ;
  • Chung W.J. (Dept. of Mechatronics, CNU)
  • 발행 : 2005.06.01
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초록

This paper presents the method of reducing torque ripple of Blushless Direct Current(BLDC) motor. In the BLDC motor, the torque is decided by the back-EMF and current waveform. If the back-EMF is constant, the torque ripple depends on the current ripple during commutation period. The current in commutation period is acquired by circuit analysis and then the torque ripple simply can be reduced by varying input voltage to flow the current continuously. And suggested method is confirmed by dynamic with parameters of 500W BLDC motor.

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