A Study on the Cogging Torque Reduction in a Novel Axial Flux Permanent Magnet BLDC Motor

축방향 자속형 영구자석 BLDC 전동기의 코깅 토크 저감에 관한 연구

  • 조원영 (동아대학교 전기공학과) ;
  • 이인재 (동아대학교 전기공학과) ;
  • 구대현 (한국전기연구원 Mechatronics group) ;
  • 전연도 (한국전기연구원 Mechatronics group) ;
  • 조윤현 (동아대학교 전기공학과)
  • Published : 2006.09.01

Abstract

Cogging torque, the primary ripple component in the torque generated by permanent magnet (PM) motors, is due to the slotting on the stator or rotor. This article shows the reduction of cogging torque in a novel axial flux permanent magnet (AFPM) motor through the various design schemes. 3D finite element method is used for the exact magnetic field analysis. The effects of slot shapes and skewing of slot on the cogging torque and the average torque have been investigated in detail.

References

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