基于分层拓扑模型的配电网故障定位优化算法

Optimized algorithm of fault section diagnosis for distribution networks based on hierarchical model

随着配电网规模的不断扩大 ,配电网中的电源点及T接点的数量不断增多 ,配电网故障定位的实时性矛盾将日益突出。针对此问题 ,提出了基于分层拓扑模型的配电网故障定位优化算法。该算法充分考虑配电网故障定位的特点 ,采用分层拓扑模型 ,利用对分法 ,通过计算某一区间中间层顶点故障信息状态组合情况 ,以确定故障所属的更小区间 ,逐步压缩并逼近故障所属区间 ,实现故障的快速、准确定位。

Along with enlargement of the scope of distribution networks, fault section diagnosis for distribution networks becomes an optimization problem in real-time operation environment. An optimal algorithm based on hierarchical topologic model is presented, where the mutual coupling of distribution networks are under considerations. By calculating fault state of middle vertexes in the region, the region that contains the fault section is compressed step-by-step by utilizing subsection principle. Finally the fault section in distribution network can be identified and isolated fleetly. Results of test show that the method presented is applicable and efficient.