Method and system for evaluating restoration capacity and reliability of power distribution network

The invention discloses a method and a system for evaluating restoration capacity and reliability of a power distribution network. The method comprises the steps of: establishing a power distribution system element reliability model, and determining the influence type of each element fault on each load in the power distribution system element reliability model through employing a minimum path method; establishing a fault influence table, performing power distribution system operation simulation by using a Monte Carlo method, and when a fault occurs, reconstructing a power distribution system network; and querying a corresponding influence type in the fault influence table, counting power failure times and power failure duration, and calculating a reliability index according to the power failure times and the power failure duration to realize reliability evaluation. By means of the method, more loads can be restored, the load shedding amount is reduced, the restoration capacity of the system after disasters is