配电网故障区域判断和隔离

A New Approach to Identify Faulty Sections in Distribution System

将配电网的开关看作图的顶点,将其馈线看作图的弧,并将流过开关的电流当作顶点的负荷,将馈线供出的负荷当作弧的负荷,提出根据顶点的负荷求算弧的负荷的点弧变换,并给合一个实例讨论了基于点弧变换的过热弧搜寻算法及其简化算法.采用过热弧搜寻算法能够有效地解决配电网络故障区段的判断与隔离问题。

The switches of a distribution though a switch system are regarded as vertexes of a graph while the feeder lines are regarded as arcs. the current is defined as the load of the vertex,and the feeder line supply is defined as the load of the arc. The vertex load to arc load (VTA)conversion, by which we can obtain the load of the arcs from that of the vertexes, is discussed. Based on the VTA conversion, an algorithm to search for the over heated arcs is developed. The faulty sections in adistribution system can be identifed and isolated automatically. A program flow chart is provided and discussed.