| 基于特频信号注入法的配电网故障定位研究 |
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| 引用本文： | 程肖,焦彦军,王立宗. 基于特频信号注入法的配电网故障定位研究[J]. 西北电力技术, 2012, 0(1): 33-36 |
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| 作者姓名： | 程肖 焦彦军 王立宗 |
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| 作者单位： | [1]华北电力大学电气与电子工程学院,河北保定071003 [2]北京新源滤网节能科技有限公司,河北保定071000 |
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| 摘 要： | 小电流接地系统的单相接地故障定位技术是多年来电力系统备受关注的研究领域之一。文章介绍了信号注入法的基本原理，提出了接地选线与信号注入法相结合的配电网单相接地故障定位技术确定故障线路。并向故障线路中注入特频信号，利用电磁感应原理检测该信号，从而确定接地故障点的准确位置。
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| 关 键 词： | 小电流接地系统 单相接地故障 故障定位 特频注入信号 |
Special Frequency Signal Injecting Method-based Grounding Fault Location Technology in Distribution Grid |
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| Affiliation: | CHENG Xiao, JIAO Yan-jun, WANG Li -zong(1.School of Electrical Engineering , North China Electric Power University, Baoding 071003, China： 2.Beijing Greenergy Electric Technology Co., LTD., Baoding 071000, China) |
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| Abstract: | The single-phase-to-earth fault location technology for small current grounding system is one of eoneern research in dqe field of power system for many years. The article describes the principle of signal injecting method, and proposes the single-phase- to-earth fault location technology for determining the fauh line with combining grounding fault line selection and signal injection method. The special frequency signal is injected to the fauh line, and the signal is tested by means of the principle of electromagnetic induction, so as to determine the accurate position of grounding fault point. |
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| Keywords: | small current grounding system single-phase-to-earth fauh fault location special frequency signal |
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