The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Optimal Arrangement Method of Permanent Magnets for Reduction of Detent Force of a Linear Synchronous Motor

선형 동기전동기의 Detent Force 저감을 위한 영구자석 최적 배치방법

  • 정인성 (전자부품연구원 정밀기기연구센터) ;
  • 허진 (한양대 산업과학연구소) ;
  • 현동석 (한양대 공대 전기공학과)
  • Published : 2000.03.01
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Abstract

The detent force caused by the interaction of magnets with the teeth of a armature core deteriorates the driving performance of a permanent magnet linear synchronous motor. In this paper, we analyze the fields and forces of a linear synchronous motor with segmented or skewed magnet arrangement according to lateral overhang length of permanent magnets. For the analysis, the 3-dimensional equivalent magnetic circuit network method is used. The detent force and the static thrust are analyzed according to the segmented or skewed angle and the overhang length of permanent magnets, and the optimal angles that the detent force is minimized are found out in each case. The analysis results are compared with the experimental ones and shown a reasonable agreement.

Keywords

References

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