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

The Korean Institute of Electrical Engineers (대한전기학회)
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A Design and Driving Characteristics of Novel Hybrid Pole Bearingless SRM

새로운 하이브리드 극 구조의 베어링리스 SRM 설계 및 운전특성

  • 이동희 (경성대학교 전기전자메카트로닉스공학부) ;
  • 왕혜군 (경성대학교 공과대학) ;
  • 안영주 (부경대학교 제어계측공학부) ;
  • 안진우 (경성대 전기전자메카트로닉스공학부)
  • Published : 2008.12.01
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Abstract

Bearingless SRM(Switched Reluctance Motor) is researched for high speed or special applications which can not use mechanical bearing such as bio pump. In this paper, a novel hybrid pole bearingless SRM is presented. The proposed hybrid pole bearingless SRM has salient poles for torque and suspending force production. Motor torque is controlled by the phase currents in torque pole windings, and the suspending force is controlled by suspending currents in four suspending windings for radial direction suspension. Because the proposed bearingless SRM has divided pole structure, mutual effects between torque current and suspending current are very lower than the conventional one's. From this structure, the number of power devices for power converter can be reduced for bearingless SRM driving. The proposed hybrid pole bearing less SRM is verified by the FEM analysis and experimental results.

Keywords

References

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