Operation Strategies of Electric Vehicle Charging Stations with Wind Power Generation

The increased utilization of EVs has great potential in improving environmental sustainability and brings new opportunities to electric power system operation. The large-scale integration of wind power with intermittent characteristics brings a challenge to the system operators. Installation of an electric vehicle (EV) charging system in a wind farm to smoothen the wind power fluctuation creates a challenge to the power system. To address the challenge of charging/discharging EVs participating in wind power fluctuation mitigation, this paper proposes a coordinated integration of EVs fleet with uncertain wind power. The uncertainties associated with wind power scenario generation are considered using Monte Carlo Simulation (MCS) techniques. A mixed integer linear optimization model can be used to optimize the operation approaches of electric vehicle charging stations. The EVs integrated into a six-bus test system provide practically reliable and affordable results. The results of the simulation assess the impact of EVs, uncertainty of wind power, EV fleets charging/discharging, curtailment of wind power and CPU time. The results also show that EVs can help to reduce network congestion and operational costs.