| 农村配电网单相接地故障定位方法研究 |
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| 引用本文： | 严 凤,葛廷利. 农村配电网单相接地故障定位方法研究[J]. 电网与清洁能源, 2010, 26(4): 16-20 |
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| 作者姓名： | 严 凤 葛廷利 |
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| 作者单位： | 华北电力大学 电力工程系，河北 保定 071003;华北保定电力职业技术学院， 河北 保定 071051 |
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| 基金项目： | 国家自然科学基金资助项目（50177007） |
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| 摘 要： | 介绍了国内外农村配电网单相接地的故障定位方法，提出了一种基于小波变换对信息进行处理的反射行波分析法。利用农村配电网架空线路带有分支的特点，对各个分支点的反射波进行信号分析，根据小波变换后的模极值和矩阵特征值来确定故障位置。结果表明反射行波分析法能准确地确定故障位置。
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| 关 键 词： | 农村电网；故障定位；行波；小波包 |
Studies on the Method of Single-Phase-to-Earth Fault Location in Rural Distribution Networks |
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| YAN Feng and GE Ting-li. Studies on the Method of Single-Phase-to-Earth Fault Location in Rural Distribution Networks[J]. Power system and clean energy, 2010, 26(4): 16-20 |
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| Authors: | YAN Feng and GE Ting-li |
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| Abstract: | This paper introduces methods for the single-phase-to-earth fault location in the rural distribution networks both at home and abroad, and presents a new fault-location method based on the traveling-wave scheme. Given that the overhead transmission line in the rural distribution network has the branching-out node, signal analysis is done for the reflected wave from each of such nods, and then the fault point is located according the modeled exterma and matrix eigenvalue. The result proves that the method can precisely locate the fault point. |
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| Keywords: | rural power networks fault location traveling wave wavelet packets |
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