Research on DG Output Optimization of Active Distribution Network with Charge-discharge-storage Integrated Stations

Charge-discharge-storage integrated station can not only meet the requirement of electric car charging, while the station energy storage system as a power node can also feedback power for the power grid. In this paper, the charge and discharge model of the integrated distribution network is established for active distribution network by considering the random output characteristics of wind power and photoelectricity.By considering such factors as the real-time electricity price, the environmental cost and the charge and discharge cost of the integrated station, the objective function of DG output optimization is built, and is solved by particle swarm optimization. Through case study, the feasibility of the method is verified by comparing the running cost of DG output optimization of active distribution network before and after integrated station.