A Transient Reconstructed Current-Instantaneous Correlation Factor Based Fault Section Location Method for Active Distribution Network

Fault location technique is a key technology of smart distribution network. It is helpful for the fast line repair and power service restoration in distribution systems. In this paper, a novel multi-agent system based fault section location method for active distribution network is proposed, which can be in common use under various system neutral operation conditions. The transient reconstructed current - instantaneous correlation factor (TRC-ICF) of a line section is used to detect and locate the fault. There are three levels of agents in this method: local agent, regional agent and central agent. The local agent can collect the current information and obtain the transient reconstructed current data by information processing. The regional agent can detect fault in the section of its charge by computing and judging the TRC-ICF of the section based on the transient reconstructed current data sent from the local agents. The central agent monitors the operation of the whole system, and outputs the fault location result by integrating the fault determination results of all the regional agents. The proposed method has been verified by a series of MATLAB/Simulink simulations.