An Energy Storage Capacity Determination Model of Electric Vehicle Aggregator Considering the Real-Time Response State

An energy storage capacity determination model of electric vehicle (EV) aggregator considering the real-time response state for participating in the vehicle-to-grid (V2G) was developed. Firstly, based on energy storage characteristics of EVs after plugging in the grid, the influence of energy storage capacity and the upper and lower limit of the power output of EV with different state of charge (SOC) is analyzed. Then, the energy storage capacity model (ESCM) of the single EV is built. Finally, taking the aggregator containing three different types of EVs on the market as an example, the energy storage capacity model of EV aggregator is established to achieve the purpose of accurately analyzing the aggregator energy storage capacity.