配电网故障定位的实用矩阵新算法研究

The Research of a Practical Matrix Algorithm for Fault Location in Distribution Network

故障定位是配电网自动化系统的最重要功能之一。提出了一种基于矩阵运算的配电网故障定位方法。根据配电网网络结构,形成供电路径矩阵及其简化矩阵。依据各开关节点给出的故障信息,基于给定的矩阵运算规则,对简化供电路径矩阵进行处理,获得故障定位矩阵及其简化矩阵,由简化故障定位矩阵指示故障位置。与传统矩阵故障定位方法相比,该方法占用内存更少,运算更简单,能有效解决线路末端故障定位问题。

Fault location is one of the most important ruction of automation distribution network system. A new matrix- based algorithm is presented for distribution network fault location. The power supply path matrix, as well as its simplified matrix, is obtained based on network topology. After receiving the faulty information from the switch nodes, the simple matrix operation rules are given to get the fault location matrix and its simplified matrix, which indicate the faulty location. Compared with the traditional matrix method for fault location, this method needs less memory, has more simpler opera- tion, and can effectively solve the problem of fault location in end of feeder line.