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

The Korean Institute of Electrical Engineers (대한전기학회)
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Yoke Shape Design of Claw-Poles Stepping Motor Using Modified Magnetic Equivalent Circuit Method Including Magnetic Saturation Effect and Leakage Flux

자기 포화와 누설자속이 고려된 자기등가회로법을 이용한 클로우 폴 스테핑 모터의 요크 형상 설계

  • 이형우 (한국철도기술연구원) ;
  • 조수연 (한양대 전기공학과) ;
  • 배재남 (한양대 전기공학과) ;
  • 손병욱 (한양대 전기공학과, 대성전기(주)) ;
  • 박경진 (한양대 전기공학과, 국방기술품질원) ;
  • 이주 (한양대 전기공학과)
  • Published : 2009.10.01
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Abstract

This paper presents a shape design process of Claw-Poles Stepping Motor(CPSM) using Modified Magnetic Equivalent Circuit Method(MMEC). Because this motor is adopted on low power devices, the motor size is a very small type. But it have a very strong permanent magnet. So magnetic saturation effect happens on yoke teeth of CPSM. Also this magnetic saturation effect causes more leakage flux component between yoke tooth have another pole. In this motor type, it is essential to design a shape of yoke teeth for avoiding the magnetic saturation effect and the leakage flux. In this paper, MMEC including the magnetic saturation effect and the leakage flux component was used for design process. Comparing with data calculated by using the MMEC and results analyzed by 3-D FEM, it could be stated that the design process with MMEC was reasonable. Finally, the model has the optimized shape of yoke teeth was compared with a conventional model for no-load Back EMF and torque at steady-state operation.

Keywords

References

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