永磁无刷直流电机定子绕组故障诊断

LESCOPE'02. 2002 Large Engineering Systems Conference on Power Engineering. Conference Proceedings Pub Date : 2002-12-10 DOI:10.1109/LESCPE.2002.1020681

M. Awadallah, M. Morcos

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引用次数: 8

摘要

提出了一种基于模型的永磁无刷直流电机定子绕组匝间故障诊断系统。建立了驱动系统的瞬态模型，并在不同的健康和故障条件下运行。选取稳态电源电流作为诊断信号，对不同负载下的正常运行和故障运行进行比较。采用离散傅立叶变换(DFT)将电源电流信号变换到频域。从电源电流谱中提取适当的诊断指标来区分健康和不同的故障状态。

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Stator-winding fault diagnosis of PM brushless DC motor drives

A model-based diagnostic system for stator winding inter-turn faults of PM brushless DC motor drives is presented. A transient model of the drive system is set up and run under different healthy and faulty conditions. The steady-state supply current is selected as the diagnostic signal to compare the healthy operation to the faulty operation under different loads. The supply current signal is transformed to the frequency domain using the discrete Fourier transform (DFT). Appropriate diagnostic indices are extracted from the supply current spectrum to differentiate between healthy and different faulty conditions.

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LESCOPE'02. 2002 Large Engineering Systems Conference on Power Engineering. Conference Proceedings

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