配电网故障区段定位的改进矩阵算法

Improved Matrix Algorithm for Fault Location in Distribution Network

针对馈线终端单元(FTU)与配电网自动化主站通信中断影响故障区段定位的问题,提出一种配电网故障区段定位改进矩阵算法。该算法根据FTU通信状态与配电网拓扑构建FTU属性矩阵,动态建立网络描述矩阵,最后结合FTU故障信息,提出了配电网故障定位的改进矩阵算法。该算法可根据FTU的通信状态实时更新网络描述矩阵,判据结构简单、形式统一、计算量小,能够实现配电网故障区段的准确定位。

Aiming at the problem when locating the failure zone affected by communication interruption between the feeder terminal unit（FTU） and the main distribution automation station,an improved matrix algorithm for the distribution network failure zone positioning is proposed.Based on the FTU communication state and distribution network structure,the algorithm constructs an FTU attribute matrix and dynamically builds a network description matrix accordingly.Finally,an improved matrix algorithm to determine the fault location of distribution network is proposed based on the fault information provided by FTU.The algorithm can update the network description matrix in real time according to the communication status of FTU.The criterion is simple in structure,uniform in form and small in operation,and can locate the fault section in distribution network effectively.