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Zoom-Prony\'s Method and Its Application in Quantitative Evaluation of Induction Machine Rotor Broken-Bar Fault
Pages: 176-182
Year: Issue:  10
Journal: Transactions of China Electrotechnical Society

Keyword:  异步电动机Prony方法转子断条故障诊断;
Abstract: 在基于定子电流信号分析的感应电动机故障诊断中,通过求基波两侧由转子断条故障引起的边频分量的幅值、相位和频率,可以进行故障严重程度的定量估算.由于Prony方法对噪声非常敏感,而实际电动机电流信号包含丰富的谐波和噪声,且故障特征分量的幅值很小,直接应用Prony方法很难估算出故障特征分量的参数.本文提出Zoom-Prony方法,将Prony方法与选带细化技术(Zoom技术)相结合,对转子断条故障特征...
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