Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Skew Effects on Cogging Torque and BEMF for BLDCM

BLDCM의 코깅토크와 역기전력에 대한 스큐 영향의 해석

  • Sim, Dong-Joon (Department of Electrical Engineering, Seoul National University) ;
  • Park, Hyun-Soo (Department of Electrical Engineering, Seoul National University) ;
  • Kim, Kwang-Heon (Department of Electrical Engineering, Seoul National University) ;
  • Won, Jong-Soo (Department of Electrical Engineering, Seoul National University)
  • 심동준 (서울대학교 공과대학 전기공학과) ;
  • 박현수 (서울대학교 공과대학 전기공학과) ;
  • 김광현 (서울대학교 공과대학 전기공학과) ;
  • 원종수 (서울대학교 공과대학 전기공학과)
  • Published : 1990.11.17
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Abstract

Air gap flux density is obtained strictly from air gap permeance and MMF distribution using the design parameter of BLDCM when the stator slot is considered. Then the theoretical equations representing the cogging torque and BEMF are proposed. The effect of skew is described analytically, and skew effect on air gap permeance and MMF is studied. Consequently we verified analytically that skew of slots and magnets influenced on the reduction of the cogging torque and BEMF ripple, and the shape of BEMF.

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