| 基于Hilbert变换和小波包能量分析的转子断条故障诊断 |
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| 引用本文： | 冯健,曹建刚.基于Hilbert变换和小波包能量分析的转子断条故障诊断[J].东北大学学报(自然科学版),2010,31(12):1701-1704. |
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| 作者姓名： | 冯健 曹建刚 |
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| 作者单位： | 东北大学,信息科学与工程学院,辽宁沈阳110004;东北大学,信息科学与工程学院,辽宁沈阳110004 |
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| 基金项目： | 国家自然科学基金资助项目，国家高技术研究发展计划项目，新世纪优秀人才支持计划项目 |
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| 摘 要： | 转子断条是笼型异步电机最常见故障之一.基于Hilbert变换和小波包频带能量分析方法,提出了一种新的笼型异步电机转子断条故障检测方法.对采集的定子电流信号进行Hilbert变换,消去定子电流中包含的直流分量,解决了转子断条故障特征分量容易被基波湮没、难以检测的问题.采用基于小波包频带能量分析方法,对转子断条故障进行识别.实验结果验证了方法的有效性.
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| 关 键 词： | 故障诊断 转子断条 Hilbert变换 小波包 能量分析 |
Fault Diagnosis of Broken Rotor Bars of Induction Motors via Hilbert Transform and Wavelet Packet Energy Analysis |
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| FENG Jian,CAO Jian-gang.Fault Diagnosis of Broken Rotor Bars of Induction Motors via Hilbert Transform and Wavelet Packet Energy Analysis[J].Journal of Northeastern University(Natural Science),2010,31(12):1701-1704. |
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| Authors: | FENG Jian CAO Jian-gang |
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| Institution: | FENG Jian,CAO Jian-gang(School of Information Science & Engineering,Northeastern University,Shenyang 110004,China) |
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| Abstract: | Broken rotor bar fault of squirrel-cage motor is one of the most frequent faults,to which a new method of fault diagnosis was proposed via combining the Hilbert transform with wavelet packet energy analysis.By Hilbert transform,the DC component in the stator current is eliminated.The problem that the characteristic component of the fault of broken rotor bar is easy to be annihilated by fundamental wave and difficult to detect is addressed.Then,the fault was identified by wavelet packet energy analysis and t... |
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| Keywords: | fault diagnosis broken rotor bars Hilbert transform wavelet packet energy analysis |
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