摘要
分析了目前配电网故障定位算法中存在的问题,针对辐射状馈线或树状馈线的单电源单一故障和多电源并列运行的多重故障问题,提出了支路矩阵算法,根据从故障区域到电源所经历的过流节点数最多来确定故障区域。不仅能对配电网单一故障进行定位,而且能对配电网末端故障、分支节点故障以及多电源复故障做出快速、准确的诊断。如果配电网扩建新增馈线,只需增加支路数。该算法原理简单,运算量小,计算速度快,能够满足在线应用的要求。
The problems in current fault location algorithms for distribution networks are analyzed. According to the single fault of single-source and multiple faults of multi-source problems in radiation-shape feeder and tree-shape feeder, a branch matrix algorithm is propoed. The fault feeder is identified based on the maximum number of over current nodes from the fault feeder to the source. Not only the single fault occurred in distribution network can be located, but also the end fault, branch-node fault, multi-power sources and complex faults can be quickly and accurately diagnosed. The network can be enlarged by adding the number of feeders. The algorithm is simple and can be used in online fault current diagnosis.
出处
《现代电力》
2009年第1期49-51,共3页
Modern Electric Power
关键词
配电网
故障定位
支路矩阵
故障判断矩阵
算法
distribution network
fault location
branch matrix
fault judgment
algorithm
