Distribution Network Fault Locating Based on Limited Measurement Data

At present, basing on the power grid topology, and operation mode information, and the limited measurement information provided by power distribution automation or power quality monitoring system, it is a hot spot to realize the accurate positioning of electrical fault points in the distribution network [1] . In this paper, we will introduce a fault locating scheme based on the limited data in the distribution network. The scheme ascertains the candidate fault area and electrical fault types according to the observation value of current and voltage at the limited observation point before and after the failure firstly, further realizes the fault locating which is strong support to grid security, stability and reliable operation [2-3] .