The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Study on the Noise Reduction of BLDC Fan Motor by Cogging Torque Reduction

코깅토크 저감에 의한 BLDC Fan & Motor의 공진 소음 개선에 관한 연구

  • Received : 2013.05.13
  • Accepted : 2013.08.14
  • Published : 2013.09.01
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Abstract

It is very important to diminish noise source of electric motor systems that are used for home appliance area. We have studied on the noise reduction of BLDC motor, mainly focusing on reducing noise source from cogging torque. This noise source causes resonance of fan & motor systems. This study showed that the higher harmonic component of the cogging torque was the main factor for noise generation. Therefor, to reduce noise of bldc motor for refrigerator, this study suggested peanut shaped magnet which surface flux has similar sinusoidal wave form.

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References

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