配电网故障区间定位的改进矩阵算法

分析目前配电网故障定位算法中存在的不足,结合配电网的结构特点,提出网络关系矩阵概念和用于故障定位的改进矩阵算法。该算法与之前的矩阵算法及其他改进矩阵算法相比,具有原理简单,无须复杂的运算且运算量小,实时性好的特点。不仅适用于单电源供电的简单配电网故障定位,也适用于多电源供电的复杂配电网故障定位。不仅可以快速准确地定位单点故障,也可以快速准确地定位多点故障。甚至各台柱上FTU上传主站的信号发生畸变时,仍能快速准确地定位故障,具有非常好的容错性能。实例分析和案例仿真表明该算法的可行性与准确性。

Modified matrix algorithm for fault section location of distribution network

The shortcomings of current fault location algorithms for distribution network are analyzed; network relationship matrix and modified matrix algorithm for fault location are proposed combined with the structure characteristics of distribution network. Comparing to the matrix algorithm and its improved algorithm which are proposed before, this algorithm has the feature of simple principle, less computation without complex computing, good real-time performance. It can be applied to both simple distribution network with single power source and complex distribution network with multiple power sources, not only the single point fault but also the multiple point faults can be located quickly and accurately. Even the signals which FTU on pillars send to master station distort, fault point still can be located quickly and accurately, it has very good fault tolerance. Analyses and simulations demonstrate the feasibility and accuracy of the modified matrix algorithm.