Electric vehicle charging control system based on the characteristics of charging power

A novel mathematical model of electric vehicle (EV) charging station booking management is proposed. An optimized charging model is formulated to maximizing the charging station's profits and its constraints are the power distribution transformer capacity as well as the number of parking spaces and chargers. The innovation of the model is considering the characteristics of charging power and using appointment charging mode, which can make station more precise to get higher profits. According to the rules of users' travel, this paper simulates users' charging requirements and compares charging station's profits and users' charging completions in orderly and disorderly cases by using Monte Carlo method. The simulation results show that the dynamic programming model can achieve the real-time charging strategy, and significantly improve the economic benefits of the charging station.