Optimization Research With Multi-objective Network Operation Mode

Along with the development of national economy, the power grid, as an important part, has become the basis of the development for industrialization and information society in recent years. Found important distribution network as the electric power system, transmission system and the hub link between users, its development and perfection for the related power enterprise to bring the huge economic and social benefits. However, we have not been enough emphasis on the study of the operation of the power distribution for a long time, which result in low efficiency and frequent accidents. The optimization of distribution network operation, promoting the automation development of the system is the related reform direction in distribution network. In order to complying with the requirements of the new situation, the study of operation optimization of the distribution network has become a hot one in recent years.In this paper AHP analysis is used in the distribution network operation mode, with attribute evaluation index selected, which can reflect distribution network running status of equipment operation, technical and economical aspects. The hierarchical structure model is constructed. These indexes are tried to be selected as the objective function of the particle swarm optimization algorithm. The network reconfiguration of distribution network is achieved in the three ways of the normal operation, maintenance, and fault. The results show that the optimized indicators had been improved correspondingly.As PSO is easy to fall into local optimal solution in the optimization procedure, TS is presented to improve the algorithm in the paper. The improved algorithm is applied to optimize the PG&E69of node distribution network of all kinds of operation mode. The calculation results show that the improved algorithm can enhance the convergence of the algorithm, and a better solution is obtained.