Electricity Price-Prioritized Droop Control Strategy of Grid-friendly Vehicle-to-Grid Integrated Microgrid

The increasing penetration of decarbonized electric vehicles (EVs) with vehicle-to-grid (V2G) is an important trend. The development of energy management strategies for feasible and cost-effective utilization of V2G is a critical challenge. This paper proposes a novel V2G solution, where the EVs are connected by a flexible microgrid considering real-time electricity price and the state-of-charge (SOC) of battery. In a vehicle-to-grid integrated microgrid, an electricity price-prioritized droop control strategy is developed to perform power management in a cost-effective way. Simulation results are provided to validate the proposed power management strategy. The proposed control strategy can implement power distribution between power grid and energy storage according to the electricity price without using critical communication channels. The proposed solution is able to improve the flexibility and economy of power grid with high penetration of renewable fuel vehicles.