| 小波包变换在风力发电机转子断条故障诊断中的应用 |
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| 引用本文： | 杨明莉,刘三明,王致杰,张卫,丁国栋.小波包变换在风力发电机转子断条故障诊断中的应用[J].上海电机学院学报,2013(5):272-276. |
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| 作者姓名： | 杨明莉 刘三明 王致杰 张卫 丁国栋 |
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| 作者单位： | [1]上海电机学院电气学院,上海200240 [2]上海电机学院数理教学部,上海200240 |
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| 基金项目： | 国家青年自然科学基金项目资助（1120126）; 上海市自然科学基金项目资助（12ZR1411600） |
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| 摘 要： | 将小波包变换应用于风力发电机转子故障诊断中,用Matlab小波分析将转子断条故障情况下定子侧的电流模拟信号进行多层小波分解,提取转子断条故障的故障特征,并与傅里叶分析结果对比,得到一种简易的故障诊断方法。结果表明,该方法能够准确提取故障特征,是一种优良的信号特征提取方法。
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| 关 键 词： | 小波包 转子断条 故障诊断 |
Application of Wavelet Packet Transform to Diagnosis of Broken Bar in Wind Turbine Rotor |
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| Affiliation: | YANG Mingli, LIU Sanming＂, WAN(; Zhijie＇, ZHANG Wei, Electric Engineering, b. Department of Mathematics Shanghai Dianji University, Shanghai 200240, China) D I NG Guodona＇ and Physics, |
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| Abstract: | Wavelet packet transform is applied to wind turbine rotor fault diagnosis in this pa per. The analog current signal on the stator side in lhe rotor under a broken bar condition is de- composed into multiple layers using wavelet analysis to extract features of the fault. Comparing with the Fourier analysis results, a simple method of fault diagnosis is obtained. The results show that the method can accurately extract the fault characteristics, giving a good signal fealure exlrae- |
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| Keywords: | wavelet packet rotor broken bar fault diagnosis |
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