多节点环网中输电线路的故障测距

Fault-Location for Transmission Lines in Multiple-fed Network

只要给定网络的拓扑结构和支路参数，在多节点环网中，一般就可以通过基尔霍夫定律，建立故障线路的测距方程，使用单端数据，进行故障测距的计算。

In network with mesh the currents on two sides of the fault node do not obey the law of current distribution for parallel branches due to participation of the mesh current flowing through the faulted line.Therefore the fault-locating formula which is based upon the double-fed single line model cannot be applied to the network with mesh.In this paper a method of fault-locating for transmission lines in multple-fed network is proposed.The results of the simulated calculations show that the proposed method is feasible and can be applied to real network with complex topological configurations.