Management strategy of an electric vehicle charging station under power limitation

The rapid development of electric vehicles increases the power demand, which causes an extra burden on public grid and most importantly increases the load fluctuations to the public grid. In the proposed management strategy, a charging station is empowered by a DC microgrid, and the charging power can be limited according to power availability. Such a DC microgrid consists of electric vehicles, electrochemical storage systems, a public grid connection, and photovoltaic sources, which help to reduce greenhouse gas emissions. This paper focuses on the management strategy of an electric vehicle charging station under power limitation, presents the topology of the electric vehicle charging system, and discusses the common problems during electric vehicle charging process. The simulation results obtained under MATLAB/Simulink verify the feasibility of the management strategy that presents good performance in terms of precise control.