ABSTRACT
With the growth of the power grid, the distribution network, which is the end of the power grid, faces problems such as difficult fault location and labor shortages. This paper proposes a fault location algorithm based on the existing distribution network automation information system. The data for the fault location algorithm come from the equipment ledger, telemetry signals, fault location information system, and lightning location information system. Fault location algorithms include multi-interval optimal fault location algorithms and a combination of deep optimal search and breadth optimal search. A set of fault location systems is designed, and historical fault data are imported for experimental verification. The results show that the fault location system based on this algorithm has accurate system positioning and a fast response, which greatly reduces the time for fault finding.
