PV-storage-charging stations use photovoltaics and energy storage to balance the charging load of electric vehicles

effectively reducing the dependence of electric vehicle charging on the power grid.In the past

research on the configuration of energy storage capacity in charging stations mainly considered electricity prices and load fluctuations

but overlooked the impact of limited power supply capacity on the power grid.A new energy storage optimization configuration method for PV-storage-charging stations is proposed to address this issue.Establish the system structure

determine the constraints for power balance

energy storage operation

and grid interaction

establish the objective function for maximizing comprehensive benefits

and solve it through particle swarm optimization algorithm.The case analysis shows that the profit of the optimized configuration of the PV-storage-charging stations scheme using this method is 49.6% higher than that of the conventional charging station scheme

and the adaptability and robustness of the PV-storage-charging stations in cloudy and continuous cloudy weather are verified.