| 小电流接地系统输电线路故障定位新方法 |
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| 引用本文： | 田书,王晓卫,王娟娟.小电流接地系统输电线路故障定位新方法[J].电力系统及其自动化学报,2011,23(1):52-57. |
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| 作者姓名： | 田书 王晓卫 王娟娟 |
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| 作者单位： | 河南理工大学电气工程与自动化学院,焦作,454000 |
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| 基金项目： | 煤炭青年基金，河南理工大学研究生创新基金 |
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| 摘 要： | 在分析小电流接地系统单相接地故障暂态零模功率特性的基础上,提出了一种利用暂态零模功率求取相关系数进行故障定位的方法.该方法利用故障点上游或下游两检测点的暂态零模功率波形相似度高,相关系数值接近于1;而故障点两侧检测点的暂态零模功率波形差异较大、相关系数值小这一特征,将相邻两检测点求得的相关系数值与事先设置好的阈值做比较...
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| 关 键 词： | 暂态零模功率 相关系数 故障定位 小电流接地系统 |
New Method of Transmission Line Fault Location for Small Current Grounding System |
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| TIAN Shu,WANG Xiao-wei,WANG Juan-juan.New Method of Transmission Line Fault Location for Small Current Grounding System[J].Proceedings of the CSU-EPSA,2011,23(1):52-57. |
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| Authors: | TIAN Shu WANG Xiao-wei WANG Juan-juan |
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| Affiliation: | TIAN Shu,WANG Xiao-wei,WANG Juan-juan(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China) |
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| Abstract: | Based on the analysis of the transient zero-mode power for single-phase grounding fault of small current grounding system,a fault location method is proposed to utilize transient zero-mode power to calculate the correlation coefficient.The method takes advantage of the features that the transient zero-mode power of two detection points is highly similar at the upstream or downstream of fault location,and the value of correlation coefficient is close to 1,while the waveforms of both sides are quite different... |
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| Keywords: | transient zero-mode power correlation coefficient fault location small current grounding system |
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