含分布式电源配电网的故障定位

LIU Jian; ZHANG Xiaoqing; TONG Xiangqian; ZHANG Zhihua; DU Hongwei; CHEN Yikai

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含分布式电源配电网的故障定位

更新时间：2025-08-13

- 含分布式电源配电网的故障定位
- Automation of Electric Power Systems Vol. 37, Issue 2, Pages: 36-42(2013)
- 作者机构：
  
  1. 陕西电力科学研究院,陕西省,西安市,710054
  2. 西安理工大学自动化与信息工程学院,陕西省,西安市,710048
  3. 南瑞集团公司,江苏省,南京市,210003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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LIU Jian, ZHANG Xiaoqing, TONG Xiangqian, et al. [J]. Automation of electric power systems, 2013, 37(2): 36-42.
DOI：

LIU Jian, ZHANG Xiaoqing, TONG Xiangqian, et al. [J]. Automation of electric power systems, 2013, 37(2): 36-42. DOI：

摘要

为解决含分布式电源配电网的故障定位问题，对分布式电源的故障电流特性和含分布式电源配电网的短路电流进行了分析，探讨了根据故障电流信息和传统故障定位规则，对含分布式电源配电网进行故障定位的可行性分析。文中提出一种针对架空配电网且根据故障电流信息的改进故障定位策略，利用重合闸与分布式电源脱网的配合，解决含分布式电源架空配电网故障定位难题。研究结果表明:对于分布式电源接入母线的情形，可以根据故障电流信息，依靠传统的故障定位规则进行故障定位;在适当限制分布式电源接入馈线容量比例的条件下，对电缆配电网和供电距离较短的架空配电网，根据故障电流信息采用传统故障定位规则基本上都能正确进行故障定位，而对于供电距离较长、接纳电机类分布式电源容量偏高的架空配电网，需采用根据故障电流信息的改进故障定位策略。

Abstract

In order to solve the problem of fault location for distribution systems with distributed generation（DG），the fault current behavior of various DGs and the short-circuit current of the distribution systems with DGs are analyzed.The feasibility of the traditional fault location approach based on the information of overcurrent for distribution systems with DGs is investigated.An improved fault location process is proposed for overhead line based feeders，in which the reclosing procedure and the escape of DGs in case of fault situation are coordinated.Conclusions are drawn on DG connected to the bus and DG connected to the feeders based on cables with an appropriate limit to the total capacity，the fault can be identified with the traditional overcurrent based criteria.As for the case of DG connected to the overhead line based feeder of a rather long distance，it is necessary to utilize the improved fault location process proposed.

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