基于综合Hausdorff距离的小电流接地故障选线

朱振东; 邢惠民; 刘代; 许加利; 公茂法; 毛永杰

朱振东,邢惠民,刘代,许加利,公茂法,毛永杰.基于综合Hausdorff距离的小电流接地故障选线[J].电测与仪表,2019,56(6):56-62.
ZHU Zhendong,Xing Huimin,LIU Dai,XU Jiali,GONG Maofa,Mao Yongjie.Fault Line Selection in Small Current Grounding System based on Compositive Hausdorff Distance[J].Electrical Measurement & Instrumentation,2019,56(6):56-62.

基于综合Hausdorff距离的小电流接地故障选线

Fault Line Selection in Small Current Grounding System based on Compositive Hausdorff Distance

DOI：

中文关键词: 小电流接地系统故障选线暂态零序电流波形相似性度综合Hausdorff距离

英文关键词:small current grounding system fault line selection transient zero sequence current waveform similarity Compositive Hausdorff Distance

基金项目:

作者中文名	作者英文名	单位
朱振东	ZHU Zhendong	山东科技大学电气与自动化工程学院
邢惠民	Xing Huimin	国网山东省电力公司东营供电公司
刘代	LIU Dai	国网山东省电力公司东营供电公司
许加利	XU Jiali	东营方大电力规划有限公司
公茂法	GONG Maofa	山东科技大学电气与自动化工程学院
毛永杰	Mao Yongjie	东营方大电力规划有限公司

摘要点击次数: 2037

中文摘要:

将Hausdorff距离引入小电流接地系统故障选线,利用故障后暂态零序电流波形的相似性度作为故障选线判据,提出改进后的综合Hausdorff距离算法计算暂态零序电流的波形相似度,进行故障线路筛选。采用MATLAB/SIMULINK软件对不同故障条件分别进行仿真,实验结果表明,综合Hausdorff距离算法不受接地电阻、故障电压初相角、短路距离以及电网结构等因素的影响,具有准确性高,抗噪声能力强,检测速度快和对采样频率限制低的优点。

英文摘要:

Hausdorff Distance is introduced into Fault line selection in a small current grounding system. To solve the problem of fault line selection, this paper proposes an improved Compositive Hausdorff Distance, which uses similarity measurement based on transient zero-sequence currents signals as criteria, to calculate waveform similarity of transient zero-sequence currents. By using MATLAB/SIMULINK software to simulate different fault conditions, the results show that Compositive Hausdorff Distance has the advantages of high accuracy,strong noise immunity, fast detection speed and low limit of sampling frequency, which are not affected by grounding resistance, fault voltage initial angle, short circuit distance and power grid structure.

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