Fault recovery of distribution network is actually to transfer the load from power loss area to the contact reserve with remaining capacity or the island operated DG through the operation of the switch

which is a multi-objective and multi-constrained optimiz ation problem.In this paper

the identific ation method of the weak link of network voltage is introduced.By way of judging the weak link of voltage in the area with channel with power supply

the node with the risk exceeding the limit is further eliminated and the recoverable area is determined.Moreover

the importance of the power loss is sorted

based on the benefit

risk

and cost

the optimization model for the power outage recovery strategy of the distribution network is established.The heuristic algorithm is used for solution so to obtain the target nodes and recovery paths in the recovery process.The rationality of the proposed method is verified by a numerical example system.