| 威格纳分布在异步电动机故障诊断中的应用 |
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| 引用本文： | 姜建国,张智平,邱阿瑞.威格纳分布在异步电动机故障诊断中的应用[J].清华大学学报(自然科学版),1993(1). |
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| 作者姓名： | 姜建国 张智平 邱阿瑞 |
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| 作者单位： | 电机工程与应用电子技术系
(姜建国，张智平)，电机工程与应用电子技术系(邱阿瑞) |
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| 摘 要： | 利用 Ｗｉｇｎｅｒ分布对笼型异步机起动过程的定子电流作时频谱分析以确定其中是否有（１—２ｓ）ｆ（ｓ为滑差，ｆ为电网频率）这一断条特征量．从而诊断有无断条。结果表明：这种方法比传统的利用稳态定于电流作谱分析来诊断转子断条的方法，具有灵敏度高、信息丰富的优点，并且为双鼠笼异步电动机上笼断条的早期诊断提供了可行的途径。
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| 关 键 词： | 笼型异步机 转子断条 故障诊断 Wigner分布 |
Diagnose fault of induction motor with Wigner distribution |
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| Jiang Jianguo,Zhang Zhiping,Qiu Arui.Diagnose fault of induction motor with Wigner distribution[J].Journal of Tsinghua University(Science and Technology),1993(1). |
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| Authors: | Jiang Jianguo Zhang Zhiping Qiu Arui |
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| Institution: | Jiang Jianguo,Zhang Zhiping,Qiu Arui Department of Electrical Engineering |
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| Abstract: | The paper presents an approach of extracting fault feature of induction motor, which extracts the (1 -2s) f component (s-slip of motor, f-main power frequency) from the Time Frequency Spectrum (TFS) of the current of stator winding during start process. The TFS is made with Wigner-Ville Distribution. The results of applying it to induction motors in lab show that the approach has advantages of higher sensitivity and more abundant information than the traditional spectrum analysis of stable state current of stator winding, and provides a way that might identify the double cage induction motor whether with a small amount of outer cage broken bar or not. |
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| Keywords: | cage induction motor rotor broken bar fault diagnosis Wigner distribution |
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