基于零序阻抗模型故障特征的含分布式电源配电网故障 - 电工技术学报.pdf
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2016 年 5 月 电 工 技 术 学 报 Vol.31 No. 10
第 31 卷第 10 期 TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY May 2016
基于零序阻抗模型故障特征的
含分布式电源配电网故障区间定位方法
1 1,2 1 2
康忠健 田爱娜 冯艳艳 李卫星
(1. 中国石油大学(华东)信息与控制工程学院 青岛 266580
2. 哈尔滨工业大学电气工程系 哈尔滨 150001 )
摘要 电力系统配电网的故障区间定位是故障精确测距的基础,其研究对尽快恢复供电及减
少停电经济损失具有重要作用。分布式电源(DG )的引入增加了故障区间定位的难度,为此提出
一种基于电源端测量数据的含DG 配电网故障区间定位新算法。该方法在含DG 配电网零序阻抗
模型的基础上,根据故障点的故障特征搜索故障支路关联节点,定位故障区间。算例仿真结果表
明所提出方法具有区间定位准确度高、鲁棒性强和计算速度快的优点。
关键词:含分布式电源配电网 故障区间定位 零序阻抗模型 故障特征
中图分类号:TM726
Fault Section Locating Method
Based on Zero Sequence Impedance Model Fault Feature
in Distribution Network with Distributed Generators
Kang Zhongjian 1 Tian Aina 1,2 Feng Yanyan 1 Li Weixing2
(1. College of Information and Control Engineering China University of Petroleum
Qingdao 266580 China
2. Department of Electrical Engineering Harbin Institution of Technology
Harbin 150001 China )
Abstract Fault section locating is the basis of accurate fault location in distribution networks,
and plays an important role in restoring power supply and reducing economic loss. The introduction of
distributed generation (DG) increases the difficulty of fault section locating. Therefore, this paper
proposes a new algorithm for fault location in distribution network with DG based on measurement data
of the power end. On the basis of zero sequence impedance models of the distribution network with DG,
this method searches the fault associated nodes to locate
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