基于波形比较的主动配电网故障定位  

Fault Location for Active Distribution Network Based on Waveform Comparison

作　　者：庞清乐 马晓玲[2] 鲁高鹏 PANG Qing-le;MA Xiao-ling;LU Gao-peng(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)

机构地区：[1]青岛理工大学信息与控制工程学院,山东青岛266520 [2]山东工商学院信息与电子工程学院,山东烟台264005

出　　处：《电工电气》2019年第6期5-9,共5页Electrotechnics Electric

基　　金：国家自然科学基金项目(61403236)

摘　　要：主动配电网中接入了大量分布式电源,导致很多传统的故障定位方法失效,提出了基于波形比较的快速故障定位方法。该方法采用具有分布式控制功能的馈线终端设备实时检测故障电流,当检测到故障电流时,将检测点的故障电流与下游检测点的故障电流进行波形比较,实现故障定位。仿真结果表明,该方法在含分布式电源的主动配电网发生单重故障和多重故障时均能实现正确故障定位。A large number of distributed generations access to the active distribution network,so as to result in the failure of many traditional fault location methods.This paper proposed a fast fault location method based on waveform comparison.This method adopted the feeder terminal units with distributed control function detect fault current in real time.When a feeder terminal unit detected the fault current,it compared the fault current waveform of local detection point with downstream detection point to realize fault location.The simulation results show that the proposed method can realize correct fault location for single phase-to-phase short-circuit fault and multiple phase-to-phase short-circuit fault in active distribution network with distributed generation.

关 键 词：主动配电网 故障定位 波形比较 相关系数 

分 类 号：TM773[电气工程—电力系统及自动化]