Power distribution network feeder line fault analysis method and system based on time sequence logic weighting

The invention discloses a power distribution network feeder line fault analysis method and system based on time sequence logic weighting. The method comprises the steps of screening alarm information received by a master station in a power distribution network by using preset fault identification information under the condition that the power distribution network in a target area has a fault, and obtaining key information for identifying the fault in a graph structure corresponding to the power distribution network; fault alarm marks are set in the graph structure according to the key information, and the generation time of the fault alarm marks generated by the feeder lines in different sections in the graph structure is recorded; determining a target time sequence corresponding to feeder lines in different sections in the power distribution network based on the generation time; and under the condition that the target signals transmitted by the terminals corresponding to the feeder lines in the different sec