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논문 기본 정보

자료유형
학술저널
저자정보
Jin-Hyung Yoo (Kyungnam University) Tae-Uk Jung (Kyungnam University)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.21 No.3
발행연도
2016.9
수록면
413 - 420 (8page)

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초록· 키워드

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The permanent magnet synchronous motor has high efficiency driving performance and high power density output characteristics compared with other motors. In addition, it has good regenerative operation characteristics during braking and deceleration driving condition. For this reason, permanent magnet synchronous motor is generally applied as a power train motor for electrical vehicle. In permanent magnet synchronous motor, the most probable causes of fault are demagnetization of rotor’s permanent magnet and short of stator winding turn. Therefore, the demagnetization fault of permanent magnet and turn fault of stator winding should be detected quickly to reduce the risk of accident and to prevent the progress of breakdown of power train system. In this paper, the fault diagnosis method using high frequency low voltage injection was suggested to diagnose the demagnetization fault of rotor permanent magnet and the turn fault of stator winding. The proposed fault diagnosis method can be used to check the faults of permanent magnet synchronous motor during system check-up process at vehicle starting and idling stop mode. The feasibility and usefulness of the proposed method were verified by the finite element analysis.

목차

1. Introduction
2. Failure mode of PMSM
3. Proposed Diagnosis Method
4. Demagnetization Fault and Turn Fault Analysis Results
5. Conclusion
References

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