The invention discloses a load transfer method based on an optimal flow method and a Mayeda
spanning tree method. The load transfer method comprises the steps: simplifying a power distribution network, reading faulty distribution
network topology, employing a method of combining an optimal flow method and a Mayeda
spanning tree method to reconstruct a fault power distribution network. The
reconstruction method comprises the following steps: establishing a load transfer target function and constraint conditions; opening a section switch, selecting an available
interconnection switch, closing toform a looped network; determining an optimal flow mode at the moment; finding out the section switch
branch with the minimum
load shedding capacity of the corresponding looped network as the optimalsolution of the corresponding
branch; checking whether constraint conditions are met or not: if not, adding the constraint conditions to the target function in a penalty function form, then selectinga new available
interconnection switch to replace the previously selected
interconnection switch, and repeating the method until the absolute value of the increment of the target function meets preset iteration precision, so as to obtain the optimal topological structure of the load transfer power distribution network. According to the invention, the optimal load transfer scheme can be obtained in a relatively short time.