Analysis on the Rotor Losses in High-Speed Permanent Magnet Synchronous Motor Considering the Operating Condition

운전조건을 고려한 고속 영구자석형 동기전동기의 회전자 손실 해석

  • 장석명 (충남대 공대 전기공학과) ;
  • 최장영 (충남대 공대 전기공학과) ;
  • 조한욱 (충남대 공대 전기공학과)
  • Published : 2007.01.01


In this paper, the rotor losses in high-speed permanent synchronous motor (PMSM) considering the operating condition are discussed. In order to maintain the mechanical integrity of a high-speed permanent magnet machine rotor intended for high-speed operation, the rotor assembly is often retained within a stainless steel or Carbon-Fiber/Epoxy sleeve. The sleeve is exposed to fields produced by the stator from either the slotting or the mmf harmonics that are not synchronous with rotor losses. On the basis of analytical field analysis, the rotor losses are analyzed. In particular, the no-load, rated with air-cooled, and forced water cooled conditions are considered. The results are validated extensively by comparison with non-linear finite element method (FEM).


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