An Algorithm for Fault Location in Power Distribution Network Under the Condition of Insufficient Information

By using the measurement correlation of power distribution network,a new algorithm is put forward for fault location in power distribution network.The fault information lack comes from the correlation of distribution network measurement current.The paper discusses the algorithm which distribution network nodes have no FTU or have no information as to FTU fault.Example analysis shows that the method is feasible.This method can effectively solve the problem of shortage of the fault information,such as the FTU(feeder terminal unit) fault,insufficient information about FTU.