| 基于电流极性比较的主动配电网故障定位方法 |
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| 引用本文： | 庞清乐,刘昱超,李希年,孙静,王深茏.基于电流极性比较的主动配电网故障定位方法[J].电力系统保护与控制,2018,46(20):101-108. |
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| 作者姓名： | 庞清乐 刘昱超 李希年 孙静 王深茏 |
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| 作者单位： | 青岛理工大学信息与控制工程学院;山东工商学院信息与电子工程学院 |
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| 基金项目： | 国家自然科学基金项目(61472227，61403236);山东省教育厅科技发展规划项目(J15LN10);烟台市科技计划项目(2016ZH055) |
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| 摘 要： | 馈线终端单元在主动配电网发生故障时实现对配电网的主动控制,需要简单有效的控制算法。因此,提出了基于电流极性比较的主动配电网故障定位方法。该方法采用馈线终端单元实时检测故障电流,将电流突变时刻作为故障起始点,记录故障后半个周波数据,并计算其极性。通过比较相邻检测点故障电流的极性,实现故障定位。仿真和现场验证结果表明,该方法在主动配电网发生相间短路故障和单相接地故障时均能实现准确的故障定位。
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| 关 键 词： | 主动配电网 故障定位 电流极性比较 馈线终端单元 |
| 收稿时间： | 2017/9/29 0:00:00 |
| 修稿时间： | 2017/12/12 0:00:00 |
Current polarity comparison based fault location for active distribution network |
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| PANG Qingle,LIU Yuchao,LI Xinian,SUN Jing and WANG Shenlong.Current polarity comparison based fault location for active distribution network[J].Power System Protection and Control,2018,46(20):101-108. |
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| Authors: | PANG Qingle LIU Yuchao LI Xinian SUN Jing and WANG Shenlong |
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| Affiliation: | School of Information and Control Engineering, Qingdao University of Technology, Qingdao 266520, China;School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China,School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China,School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China,School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China and School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China |
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| Abstract: | The feeder terminal unit controls the distribution network actively when a fault occurs in the active distribution network, it requires a simple and effective control algorithm. So a fault location method based on current polarity comparison for active distribution network is proposed. In this method, the feeder terminal unit detects fault currents in real time, the abrupt change moment is taken as the fault starting moment. The fault current of half cycle is stored from the fault starting moment and its polarity value is calculated. Fault location is realized by comparing the fault current polarity of adjacent detection points. Simulation and field verification results show that the proposed method can achieve accurate fault location under phase-to-phase short-circuit faults and single-phase-to-ground faults in active distribution network. This work is supported by National Natural Science Foundation of China (No. 61472227 and No. 61403236), Science and Technology Development Plan of Shandong Provincial Education Department (No. J15LN10), and Yantai Science and Technology Plan (No. 2016ZH055). |
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| Keywords: | active distribution network fault location current polarity comparison feeder terminal unit |
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