Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Reduction of Cogging Torque in BLDC Motors

BLDC 전동기의 코깅 토오크 저감설계

  • Kim, Suk-Ki (Department of Electrical Engineering, Chung Ang University) ;
  • Chung, Tae-Kyung (Department of Electrical Engineering, Chung Ang University)
  • 김석기 (중앙대학교 공과대학 전기공학과) ;
  • 정태경 (중앙대학교 공과대학 전기공학과)
  • Published : 1995.07.20
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Abstract

In a permanent magnet motor, cogging torque arises from the intersection of the rotor magnets with the steel teeth on the stator. This paper describes design measures which can be taken to reduce the cogging torque. In this paper for the optimal shape design of brushless DC motor, evolution strategy is investigated to find the dimension of stator of BLDC motor that minimizes the cogging torque. The corresponding field analysis is performed by two-dimensional finite element method.

Keywords