| 基于"能量-故障"诊断模式的转子断条故障在线监测 |
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| 引用本文： | 孙克金,刘念,谢驰,何坤.基于"能量-故障"诊断模式的转子断条故障在线监测[J].四川大学学报(工程科学版),2002,34(3):84-87. |
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| 作者姓名： | 孙克金 刘念 谢驰 何坤 |
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| 作者单位： | 四川大学,电气信息学院,四川,成都610065 |
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| 摘 要： | 为了克服转子断条故障特征分量易受基频分量影响的困难,采用了一种基于“能量－故障”的诊断模式,利用小波理论对电动机定子电流采样信号进行特征频率提取,求出对应的能量分布,建立了表征转子断条故障的特征向量,用模方法实现了转子断条故障的快速在线监测与诊断。
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| 关 键 词： | 在线监测 转子断条 “能量－故障”诊断模式 小波理论 特征向量 模式识别 故障诊断 双鼠笼异步电动机 |
| 文章编号： | 1009-3087(2002)03-0084-04 |
| 修稿时间： | 2001年7月6日 |
On-line Monitoring Method for Rotor Broken Bar Fault Based onthe "Energy-fault" Diagnosis Mode |
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| SUN Ke jin,LIU Nian,XIE Chi,HE Kun.On-line Monitoring Method for Rotor Broken Bar Fault Based onthe "Energy-fault" Diagnosis Mode[J].Journal of Sichuan University (Engineering Science Edition),2002,34(3):84-87. |
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| Authors: | SUN Ke jin LIU Nian XIE Chi HE Kun |
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| Abstract: | In order to solve the difficulty of influence on the characteristic frequency by the base frequency, this paper introduces a new on line monitoring method for rotor broken bar fault based on the "energy-fault" diagnosis mode. The characteristic frequency and the corresponding energy distribution were gained from the electric machine stator current signal by wavelet transformation.Hence, the eigenvector indicating the rotor bar broken condition can be set up. In this mode of the recognition way, the fast on line monitoring and diagnosis method for rotor broken bar fault can be implemented. |
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| Keywords: | rotor broken bar fault wavelet transforms the "energy-fault" diagnosis mode eigenvector mode recognition |
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