Optimal Allocation Scheme of Energy Storage Capacity of Charging Pile Based on Power-Boosting

With the gradual popularization of electric vehicles, users have a higher demand for fast charging. Taking Tongzhou District of Beijing and several cities in Jiangsu Province as examples, the charging demand of electric vehicles is studied. Based on this, combining energy storage technology with charging piles, the method of increasing the power scale of charging piles is studied to reduce the waiting time for users to charge. Based on the consideration of safety and cost of distribution network, an optimization scheme of capacity allocation for energy storage devices to access the distribution network is designed. Finally, taking a city's distribution network as an example, a Simulink model is established to simulate the impact of large-scale electric vehicles to the distribution network, and the operation of the distribution network is analyzed after the optimal allocation scheme of energy storage capacity is adopted.