Application of signal processing and analysis in detecting single line-to-ground (SLG) fault location in high-impedance grounded distribution network
Application of signal processing and analysis in detecting single line-to-ground (SLG) fault location in high-impedance grounded distribution network
复制标题
信号处理与分析在高阻抗接地配电网单线接地（SLG）故障定位检测中的应用
DOI：
10.1049/iet-gtd.2015.0555
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发表时间：
2016-02
期刊：
影响因子：
--
通讯作者：
Xiaohui Song
中科院分区：
文献类型：
--
作者：
Yajie Li;Xiaoli Meng;Xiaohui Song
针对国内外配电网普遍存在的高阻接地故障中，单相接地故障由于故障特征不明显、噪声干扰、三相不平衡运行等因素的影响而难以诊断的问题，在深入分析单相接地故障时空特征的基础上，采用信号处理和分析技术对单相接地故障进行定位检测。首先，有限脉冲响应（FIR）滤波器被应用于有效地滤除干扰因素，提取纯故障特征的每一条线路。然后，基于提取的故障特征，采用层次聚类对线路进行分类。根据聚类结果，可以确定故障线路。如果在故障线路上分布有监测终端，还可以进一步识别故障区段。仿真结果表明，该方法在各种故障条件下都能很好地工作，与小波分析相比具有更高的可靠性。该方法充分利用了网格中现有的硬件条件，成本较低，具有较高的实用价值。
In high-impedance grounded distribution networks which are common in many countries, single line-to-ground (SLG) fault diagnosis is difficult due to weak fault characteristics, noise interference, three-phase unbalanced operation's influence and so on. Upon thorough analysis on the space-time characteristics of SLG fault, this study applies signal processing and analysis techniques to do SLG fault location detection. First, finite impulse response (FIR) filter is applied to effectively strain out interference factors and extract pure fault characteristics for each line. Afterwards, hierarchical clustering is used to classify lines based on the extracted fault characteristics. According to the clustering result, the fault line could be determined. If there are monitoring terminals distributed in the fault line, the fault section could also be further identified. Simulation shows that the proposed method works well under various fault conditions and has a higher reliability compared with wavelet analysis. Besides, this method makes full use of the existing hardware conditions in the grid and the cost is low, hence it has high practical value.
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影响因子：
56.9
作者：
K. Vehkalahti;B. Everitt
通讯作者：
K. Vehkalahti;B. Everitt
DOI：
10.1007/978-3-642-12541-6_9
发表时间：
2011-01-01
期刊：
CONCISE GUIDE TO MARKET RESEARCH: THE PROCESS, DATA, AND METHODS USING IBM SPSS STATISTICS
影响因子：
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作者：
Mooi, Erik;Sarstedt, Marko
通讯作者：
Sarstedt, Marko
DOI：
10.4135/9781412983648
发表时间：
1984
期刊：
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影响因子：
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作者：
M. Aldenderfer
通讯作者：
M. Aldenderfer
DOI：
10.1109/icps.2001.966527
发表时间：
2001-05
期刊：
2001 IEEE Industrial and Commercial Power Systems Technical Conference. Conference Record (Cat. No.01CH37226)
影响因子：
--
作者：
T. Baldwin;F. Renovic;L. Saunders;D. Lubkeman
通讯作者：
T. Baldwin;F. Renovic;L. Saunders;D. Lubkeman
影响因子：
4.4
作者：
T. Welfonder;V. Leitloff;R. Fenillet;S. Vitet
通讯作者：
T. Welfonder;V. Leitloff;R. Fenillet;S. Vitet