V2G technology plays a crucial role in the optimization and scheduling of electric vehicles(EV) charging and discharging.To propose effective charging and discharging strategies for EV

firstly it analyzes and models the travel data of the entire EV group

and obtains the probability distribution of user charging time and driving distance.Secondly

based on the peak valley time-of-use electricity price

a user cost model and a user benefit model are established

taking into account battery discharge losses

and an optimization model with the goal of maximizing user utility is established.Finally

the effectiveness of the model is verified through instance simulation.The results indicate that V2G technology to some extent suppresses the fluctuation of power grid load and maximizes the efficiency of EV user benefits

achieving a win-win situation between the power grid and users.