Research On Distribution Network Planning Considering DG

In this paper, the problem about the distribution network planning considering DG is researched. Firstly, based on economy and security of distribution network,it constructs a distribution network optimal model. The objective function of the model is the minimum total value of the investment cost of the distribution network and the DG, the power loss of distribution network and the cost of purchasing power. Secondly, in order to overcome the shortcomings of genetic algorithm,a new improved genetic algorithm, which includes the improvement of the code, the selection, the initial population, the crossing and mutating, is proposed in this paper. Lastly, the paper uses two distribution networks as calculations, which show that the proposed model and algorithm are feasible and practical.