Optimal EV Charging Control Strategy Based on DC Microgrid

Electric vehicles (EVs) charging facilities and renewable energy systems can be directly associated within microgrid to achieve coordination and complementary, and reduce the negative impact on the grid. This paper firstly introduces the system structure of DC microgrid and its unit functional models. Secondly, the appropriate microgrid energy management control strategy based on day-ahead prediction is developed, according to the different power demand scenarios. Finally, the actual DC microgrid case verifies the optimal control strategy's synergies with renewable energy and electric vehicle charging equipment. It provides a reference to solve large-scale electric vehicle charging power demand and renewable energy consumptive problems in the distribution grid.