Distribution network small current neutral grounding line selection method based on multi-source information fusion

The invention discloses a distribution network small current neutral grounding line selection method based on multi-source information fusion. The distribution network small current neutral groundingline selection method comprises the steps that a distribution network grounding line selection switch matrix (DGSM) is established to describe feeder and outlet switch models of related buses of all grounding substations in the distribution network; a feeder switch pull path sequence table (FSST) is established to describe the brake separating action sequence of each feeder and outlet switch on the bus; priority adjustment rules are established to perform necessary adjustments on the switch sequence in the feeder switch pull path sequence table (FSST); and according to the distribution networkgrounding line selection switch matrix (DGSM) and the adjusted feeder switch pull path sequence table (FSST), the distribution network grounding fault is subjected to comprehensive line selection processing until a grounding