基于FTU的配电网故障判断双亲节点矩阵拓扑识别法

FTU-Based Parent Node Matrix Identification through Topology for Distribution Network Fault Diagnosis

为解决多电源供电情况下T型馈线故障判断出现盲区的问题，采用拓扑识别将配电网结构的双亲节点矩阵分离为常规馈线双亲节点矩阵和T型馈线双亲节点矩阵，分别判断常规馈线上的故障和T型馈线上的故障。此方法无需进行复杂的矩阵计算和规格化处理，可以直观地定位T型馈线区域的故障。通过实际配电网多点电源多点故障下的算例计算验证了此算法的正确性。

To solve the problem that there are blind areas in T-type feeder fault diagnosis under multiple power sources, by dividing parent node matrices of distribution network into regular feeder parent node matrices and T-type feeder parent node matrices using topology identification, faults on regular feeder and T-type feeder are diagnosed separately. It requires no complex matrix calculation and normalization, and is able to locate faults in T- type feeder area intuitively. The algorithm is validated through practical cases under multiple power sources and multiple faults.