Research on the Influence of Permanent Magnet Loss of Excitation Fault on Performance of Permanent Magnet Synchronous Motor

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Research on the Influence of Permanent Magnet Loss of Excitation Fault on Performance of Permanent Magnet Synchronous Motor

Jiang, Lu

Journal of physics. Conference series, 12/2022, Volume: 2396, Issue: 1

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Abstract This paper discussed the performance changes under a rated operation state and permanent magnet loss-of-field fault of a 5KW permanent magnet synchronous motor (PMSM) in a 200 mm shaftless rimless thruster. These changes in key parameters include air gap flux density, back electromotive force, output torque, current and magnetic field. Using the changes in these parameters to analyze the running state of the motor provides a reference for the early fault diagnosis of a permanent magnet synchronous motor at the simulation level.

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