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oaioai:ir.sia.cn/:173321/15188

Fault diagnosis of incipient broken rotor bars for squirrel-cage induction motor under continuous variable load condition

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Publication date
1 January 2014
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Abstract

负载连续变化时，鼠笼电机定子电流表现为非平稳信号，因此基于快速傅里叶变换的电机电流信号特征分析( MCSA)方法难以有效诊断早期转子断条故障。提出了一种负载连续变化时鼠笼电机早期转子断条故障诊断新方法。首先对定子暂态电流作希尔伯特变换以消除基频影响，然后对得到的解析信号包络线作离散小波变换，根据提取到的故障特征频率2sf 演变图谱判断是否发生了转子断条故障，最后结合小波能量给出故障状态定量分析。在3kW电机实验台上对所提出的方法进行实验验证，实验结果证实了所提方法的有效性

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Institutional Repository of Institute of Automation, CAS

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Last time updated on 29/11/2016

This paper was published in Institutional Repository of Institute of Automation, CAS.

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