基于最小生成树算法的配电网故障隔离及重构

Fault Isolation and Reconstruction of Distribution Network Based on Minimum Spanning Tree Algorithm

受煤矿配电网区域规模的约束,传统启发式搜索很难快速定位配电网故障,无法实现配电网故障自愈。以煤矿典型配电网为研究对象,采用最小生成树算法建立相关数学模型对其进行故障定位及重构。将煤矿配电网内的电源、负荷、开关作为节点,配电网可靠性及网损作为遍历约束条件,得到配电网恢复重构的最佳开关组合。采用该算法后,煤矿配电网监控系统可通过远程指令快速切除故障,将非停电区域负荷迅速接入其他馈线,实现煤矿配电网故障自愈。

Constrained by the size of the distribution network in the coal mine, the traditional heuristic search is difficult to quickly locate the fault of the distribution network, and cannot achieve the selfhealing of the distribution network. Taking the typical distribution network of coal mine as the research object, the mathematical model of the minimum spanning tree is used to establish the mathematical model to locate and reconstruct the fault. Taking the power supply, load and switch in the coal distribution network as nodes, the distribution network reliability and network loss as traversal constraints, the best switch combination of distribution network restoration and reconstruction is obtained. After adopting the algorithm, the monitoring system of coal mine distribution network can quickly cut off the faults through remote instructions, quickly connect the non-outage area load to other feeder lines, and realize the self-healing of the distribution network of coal mines.