A model of normal brushless DC motor system was built first. The model was modified to accommodate three faulty models, which were open-switch fault model, open-winding fault model and stator winding inter-turn short ...
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A model of normal brushless DC motor system was built first. The model was modified to accommodate three faulty models, which were open-switch fault model, open-winding fault model and stator winding inter-turn short circuit fault model. Comparing performance waveforms under faulty operation to those under normal conditions would yield characteristic waveforms to diagnose the fault. Based on these simulation results, a model-monitoring on-line fault detection method was proposed, which used the difference between predicted outputs from normal system model and actual measured outputs to detect faults.
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