Research on Optimal Dispatch of Active Distribution Network with Distributed Energy Storage

Abstract

In order to alleviate the energy crisis and improve environmental quality, the efficient use of renewable energy has become a development trend. In order to integrate various types of distributed generation (Distributed Generation, DG), to achieve large-scale renewable energy consumption, improve the utilization efficiency of distribution network resources, and improve the reliability and power quality of users, active distribution network technology has come into being, and it has attracted more and more attention from researchers. As an important part of the active distribution network, distributed energy storage has the advantages of centralized energy storage that can achieve independent control and “plug and play”, wide geographical distribution, flexibility and convenience. At the same time, because energy storage has power and the dual characteristics of load, using it to participate in the optimal dispatching of the distribution network, can effectively reduce the operating cost of the distribution network and to a certain extent realize the peak cut and valley filling of the power grid, and improve the power quality of the distribution network.