Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Analysis of the Eccentric Characteristics of the Brushless Motor by the Rotor Structure

회전자 구조에 따른 브러시리스 모터 편심 특성 분석

  • 손병욱 (한양대학교 전기공학과) ;
  • 이주 (한양대학교 전기생체공학부)
  • Received : 2010.08.11
  • Accepted : 2010.09.13
  • Published : 2010.12.31
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Abstract

The brushless motor is getting widely applied to the automotive component with the advantage of the high efficiency, high reliability and etc.. Most of the motor applications require the low vibration and acoustic noise. The cogging torque is the one of the main cause of the noise and vibration. The step-skewed rotor is used to reduce the cogging torque. We analyze the characteristics of the step-skewed rotor and non skewed rotor with the same stator by using 2-dimensional FEM. And then we analyze the characteristics variation according to the rotor eccentricity. The prototype is made and tested. As the results, the step-skewed rotor structure reduce the cogging torque and local radial force but it is more sensitive to rotor eccentricity.

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References

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