Study Of Optimal And Economical Operation Of Distribution Network

With the advancement of science technology, the development of economy and the improvement of people's standard of living, power demand is to continue to increase. It is more and more important for power supply department to improve the quality and economic optimization of power supply. It is an exigent problem how to organize the operation of distribution network under its optimized structure. Detailed study was presented on this paper.It was provided that supply distribution restoration and on-and-off of capacitor are treated as a special distribution reconfiguration in this paper. The optimal and economical operation of distribution network is considered as a whole. Multilevel analysis of switch state alternation and a fast and efficient algorithm of distribution optimization operation were provided in this paper. To improve synthesis benefit, an applied system of optimal and economical operation of distribution network was designed. It considered the cost of practice run and operation.Firstly, simple and applied component model and net model were described in detail.Secondly, the conception and significance of distribution reconfiguration for optimization were analyzed. Many kinds of optimization algorithms were compared. And some heuristic algorithms were analyzed in detail. The theory of decrease power loss by analysis of switch state alternation, the astringency of the algorithm provided in this paper and the influence of capacitor on distribution reconfiguration were also analyzed in detail.Thirdly, the conception and significance of distribution supply restoration were analyzed. Many kinds of methods were compared. The strategy, object and process of distribution supply restoration were described analyzed in detail. The relationship between restoration and reconfiguration was analyzed too.At last, the influence of practice factor on optimal and economical operation of distribution was analyzed, and the optimization scheme of distribution operation was designed. The influence of imbalance of three phase and initial structure on reconfiguration for optimization was analyzed in detail. The treatment for condition beyond restriction was analyzed.