Optimal configuration for capacity of distributed generation interconnected to distribution network based on improved

In order to reduce the tremendous loss brought about by the overwhelming nature disasters on power supply system, the establishment of a certain amount of distributed generation systems at different level load nodes is taken into account in this paper. A multi-objective mathematical model considering construction investment, network loss as well as network deferred cost is proposed, and a type of improved differential evolution (IDE) algorithm is adopted to solve the model. From the test case of a standard IEEE 33-node system, simulation results show that reasonable planning of size and site of distributed generation sources is capable of decreasing the loss caused by major accidents on power grid.