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    • 9. 发明授权
    • System and method for detecting fault in an AC machine
    • 用于检测交流电机故障的系统和方法
    • US08405339B2
    • 2013-03-26
    • US12829205
    • 2010-07-01
    • Pinjia ZhangBin LuThomas G. Habetler
    • Pinjia ZhangBin LuThomas G. Habetler
    • G01R31/02
    • G01R31/343
    • A system and method for detecting a rotor fault condition in an AC induction machine is disclosed. The system includes a processor programmed to receive voltage and current data from an AC induction machine, generate a current frequency spectrum from the current data, and identify rotor-fault related harmonics in the current frequency spectrum. The processor is also programmed to calculate a fault severity indicator using the voltage and current data, identified rotor-fault related harmonics, and motor specifications, analyze the fault severity indicator to determine a possibility of rotor fault. The processor generates an alert based on the possibility of rotor fault.
    • 公开了一种用于检测交流感应电机中的转子故障状况的系统和方法。 该系统包括被编程为从AC感应电机接收电压和电流数据的处理器,从当前数据生成当前频谱,并识别当前频谱中的转子故障相关谐波。 处理器还可编程为使用电压和电流数据,确定的转子故障相关谐波和电机规格来计算故障严重度指标,分析故障严重度指标以确定转子故障的可能性。 处理器根据转子故障的可能性产生警报。