| 非平稳信号分析在断路器故障诊断中的应用 |
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| 引用本文： | 徐立新,王伯翰.非平稳信号分析在断路器故障诊断中的应用[J].清华大学学报(自然科学版),1992(4). |
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| 作者姓名： | 徐立新 王伯翰 |
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| 作者单位： | 电机工程与应用电子技术系
(徐立新)，电机工程与应用电子技术系(王伯翰) |
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| 摘 要： | 介绍两种非平稳信号的分析建模的算法，即Ｗｉｇｎｅｒ 方法和时域衰减振荡模型方法，并将它们应用在高压断路器的操作振动分析上，从而建立模型、萃取特征参数、辨识结构状态，为断路器操作系统的故障诊断提供有用手段。Ｗｉｇｎｅｒ 算法能获得形象的信号时域及频域特征，而模型参数方法则更适合于定量的判断识别。
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| 关 键 词： | 断路器 故障诊断 特征参数 非平稳信号 信号分析 |
Nonstationary signal analysis applied to fault diagnosis of HV circuit breaker |
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| Xu Lixin,Wang Bohan.Nonstationary signal analysis applied to fault diagnosis of HV circuit breaker[J].Journal of Tsinghua University(Science and Technology),1992(4). |
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| Authors: | Xu Lixin Wang Bohan |
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| Institution: | Xu Lixin,Wang Bohan Department of Electrical Engineering |
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| Abstract: | This paper introduces two nonstationary signal processing methods to analyse the abnormalities of HV circuit breaker operating system: the Wigner distribution method and the decayed ringing model in time domain. Based on these methods the modeling, feature extracting, and discrimination of structure state can be achieved, and useful means for fault diagnosis can thus be provided. The WD algorithm gives a distinct frequency--time domains picture of the signal, and the DRM method proves to be much suitable to a quantitative pattern recognition of the signal. |
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| Keywords: | circuit breaker fault diagnosis characteristic parameter nonstationary signal signal algorithm |
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