Optimization of Battery Loading & Unloading and Charging Strategy in Changing Station

A large number of electric vehicle (EV) batteries are connected to the power grid, which increases the load pressure and threatens the safety and stability of the power grid. To solve this problem, this paper first introduces the research background and current situation of electric vehicles. Secondly, based on the linear optimization method, the charging and discharging of the battery in the changing station are constrained. Finally, the simulation analysis is carried out to compare the income of the power changing station before and after constraints. The results show that regular charging and discharging can enhance the safety and stability of power grid operation, so that the changing station can gain benefits.