Fault location method of distribution network under distributed power supply access

Ant colony algorithm is a heuristic search algorithm based on population optimization, which is derived from the foraging behavior of real ants in nature. It has the characteristics of positive feedback, fault tolerance and distributed collaborative optimization mechanism, but the ant colony algorithm is easy to fall into local optimum and slow to search. Based on the traditional ant algorithm, this paper applies the improved ant colony algorithm to the fault location of distribution network, establishes the switching function, and divides the distribution network, simplifying the dimension of feasible solution of ant colony algorithm. The simulation results show that the improved ant colony algorithm is effective in the location of the distribution network segment in the case of information distortion and loss.