Distribution network planning considering DGs

An approach for distribution network planning considering distributed generators(DGs) is proposed in this paper. It determines the optimal placement and capacity of distributed generators in power distribution network without considering the feeder changes and substation upgrades. The corresponding planning model is built and the particle swarm optimization with inertia weight (PSO-w) is used to solve it. An efficient coding scheme is presented. Moreover, a boundary mutation strategy is given to improve global searching ability of PSO-w. Finally the proposed method is tested in an example system and its effectiveness is validated.