| 自适应控流型故障选线方案 |
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| 引用本文： | 朱珂,裴佑楠,陈晨,徐文远. 自适应控流型故障选线方案[J]. 电工技术学报, 2009, 24(8) |
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| 作者姓名： | 朱珂 裴佑楠 陈晨 徐文远 |
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| 作者单位： | 山东大学电气工程学院;东营供电公司; |
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| 基金项目： | 山东省中青年科学家科研奖励基金资助项目(2008BS01025) |
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| 摘 要： | 针对国内配电网单相接地故障选线问题,提出了一种全新而有效的选线方法:当配电网发生单相接地故障时,通过对母线PT二次侧开口三角有控制地实行短路,以产生强度足够大同时又不至于大到影响系统正常运行的瞬时短路脉冲进入系统,置于各出线端的短路脉冲检测器通过对该短路脉冲电流的检测与区分以实现故障线路的判定。理论、仿真分析以及模拟实验都验证了该方法的有效性。
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| 关 键 词： | 故障选线 中性点非有效接地系统 中性点不接地系统 谐振接地系统 消弧线圈 |
Self-Adaptable and Current Controllable Faulted Line Identification Scheme |
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| Zhu Ke Pei Younan Chen Chen Xu Wenyuan. Self-Adaptable and Current Controllable Faulted Line Identification Scheme[J]. Transactions of China Electrotechnical Society, 2009, 24(8) |
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| Authors: | Zhu Ke Pei Younan Chen Chen Xu Wenyuan |
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| Affiliation: | 1. Shandong University Jinan 250061 China 2. Dongying Power Supply Corporation Dongying 257091 China |
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| Abstract: | In accordance with the identification of the faulted distribution line in our country,this paper presents a novel method that can help to overcome this difficulty. The idea is to implement a temporarily controlled short-circuit on the PT second side open-delta coil when the distribution power system is experiencing a single-phase to ground fault. The result is a controllable ground fault current that is large enough for identifying the faulted line and yet small enough not to cause system problems. The sign... |
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| Keywords: | Faulted line determination neutrally non-effectively grounded systems neutrally ungrounded systems neutrally resonant grounded systems arc-suppression coil |
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