摘要
针对故障定位传统矩阵算法在含分布式电源配电网适用性变差,在未考虑实际馈线中含有不同类型终端及信息漏报情形下,需再次获取节点信息二次构造网络描述矩阵和难以处理T接线误判的问题,提出一种故障定位优化矩阵算法,该算法基于故障设备一定只含过流流入特性,建立新的设备故障判据,提出运用特殊量标记相关终端告警信息,通过类矩阵初等变换融合特殊量,并给出隔离方案的处理策略。算例分析表明,该算法简单、有效,可同时给出故障区域和控分方案,适应含DG的复杂配电网故障定位。
In view of the deterioration of the applicability of the traditional matrix algorithm for fault location in the distribution network with distributed power sources,the fact that the actual feeder contains different types of terminals and the information underreporting is not considered,the node information needs to be obtained again to construct the network description matrix and it is difficult to handle the problem of misjudgment of T wiring,a fault location optimization matrix algorithm is proposed.This algorithm establishes a new equipment failure criterion based on the characteristics of the fault equipment that must only contain overcurrent inflow.It proposes to use special quantities to mark the relevant terminal alarm information,merge the special quantities through the elementary transformation of the class matrix,and give the processing strategy of the isolation scheme.The analysis of examples shows that the algorithm is simple and effective,and can provide fault areas and control sub-solutions simultaneously,and is suitable for fault location of complex distribution network with DG.
作者
张文轩
李京
陈平
王雪菲
于毅
ZHANG Wen-xuan;LI Jing;CHEN Ping;WANG Xue-fei;YU Yi(College of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China;Shandong Branch of Power Automation by Share Ltd.,Zibo 255049,China)
出处
《水电能源科学》
北大核心
2021年第7期192-196,共5页
Water Resources and Power
关键词
配电网
故障定位
分布式电源
矩阵算法
distribution network
fault location
distributed power generation
matrix algorithm
