| 基于高阶多分辨率奇异熵的高压输电线路故障选相 |
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| 引用本文： | 范新桥,朱永利. 基于高阶多分辨率奇异熵的高压输电线路故障选相[J]. 电力自动化设备, 2011, 31(4): 50-54 |
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| 作者姓名： | 范新桥 朱永利 |
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| 作者单位： | 华北电力大学 电气与电子工程学院，北京 102206;华北电力大学 电气与电子工程学院，北京 102206 |
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| 基金项目： | 国家自然科学基金资助项目（60974125） |
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| 摘 要： | 将高阶多分辨率奇异熵用于挖掘输电线路故障特征,提出了一种利用电流故障分量的高阶多分辨率奇异熵值进行故障选相的方法,该方法基本不受故障类型、故障位置、过渡电阻和系统摆开角的影响.故障选相过程中,对电流故障分量数据进行小波变换,计算不同尺度下小波变换系数的高阶累积量,并对以高阶累积量为元素的状态矩阵进行奇异值分解,最后计算...
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| 关 键 词： | 输电线路 故障选相 电流故障分量 高阶多分辨率奇异熵 短路故障 |
Faulty phase selection based on high-order multi-resolution singular entropy for high-voltage transmission lines |
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| FAN Xinqiao and ZHU Yongli. Faulty phase selection based on high-order multi-resolution singular entropy for high-voltage transmission lines[J]. Electric Power Automation Equipment, 2011, 31(4): 50-54 |
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| Authors: | FAN Xinqiao and ZHU Yongli |
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| Affiliation: | FAN Xinqiao,ZHU Yongli(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China) |
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| Abstract: | A faulty phase selection method based on the high-order multi-resolution singular entropy of full-phase fault current is presented for the transmission lines,which is not affected by the fault type,fault location,transition resistance and system angular difference.The wavelet transform is applied to the fault current components to compute the high-order cumulants with the wavelet coefficients of different scales,which are used to form the state matrix.The singular values can be then obtained by applying sin... |
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| Keywords: | transmission line faulty phase selection fault current component high-order multi-resolution singular entropy short-circuit fault |
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