一种配电网故障定位的实用矩阵算法

A Practical Algorithm for Fault Location in Distribution Network

为解决配电网故障定位存在的信息畸变或信息不全等影响故障定位的准确性问题,提出一种配电网故障定位的实用矩阵算法。该算法具有能最大限度减小判断盲区,在故障信息不完备情况下也能准确定位故障,而且不存在定位盲区的特点。该算法考虑到联络开关位置变化问题,既能实现辐射状、树状和环网开环运行的故障定位,又能实现环网闭环运行和多电源多重故障定位。通过实例运算,验证了算法的准确性和可靠性。

In order to address the information aberrance or incomplete infromation which negatively affect precise location of distribution network faults, this paper presents a practical algorithm for the distribution network fault location. The algorithm can minimize the judgment blind spot, accurately locate the fault with incomplete information, and there is no positioning blind spot. With the contact switch position change considered this algorithm can not only realize the fault location for the radial, tree and open-loop operation, but also the multiple fault location for the close-loop operation and multi-source power distribution network. Accuracy and reliability of the algorithm have been verified by actual computation examples.