EV Aggregation Method Considering Flexibility of Multiple Charge-discharge Modes

Given the safety and stability problems and the lack of flexibility caused by the disorderly access of large-scale electric vehicles (EVs) to the power grid, this paper fully considers the flexibility of the charge-discharge mode of EVs and taps more adjustable capacity. An EV aggregation model that considers the flexibility of the charge-discharge mode. Firstly, clustering is performed based on the characteristic parameters of EVs, and according to the flexibility difference in the cluster, the corresponding charge-discharge mode is allocated to expand the feasible area of EV energy and power. The simulation results demonstrate the effectiveness of the aggregated model in improving the adjustable capacity of EVs.