Planning and Coordinated Charging and Discharging Strategy in Residential Areas

In recent years, the number of electric vehicles and charging demand have increased significantly, which puts forward new requirements for power grid planning and operation. Accurate prediction of charging demand in residential areas can effectively guide the planning and construction of charging facilities. In this paper, by mining the relationship between the car ownership per thousand people and economic indicators, a prediction method of car ownership based on correlation coefficient and logistic curve is proposed, and the demand of charging piles under different permeability is calculated. Furthermore, a coordinated charging and discharging strategy for electric vehicles in residential areas is proposed, which takes V2G technology into account, to realize load transfer and avoid the impact of peak load on the safe operation of the power system. Finally, an example is given to verify the effectiveness of the method.