Design and Comparison of Scheduling Schemes for Grid-Connected Hybrid PV-Hydrogen-Battery Microgrid

The hybrid PV-Hydrogen-Battery microgrid is a promising solution to the global energy crisis. A novel scheduling strategy for this microgrid is designed in this paper. It divides one day into four periods, namely Morning, Daytime, Evening, and Night, based on the Time-of-Use prices and the electricity demand-supply matching degree. Diverse energy resources are adopted during each period to save the electricity bill. Then, three scheduling schemes with different PV power utilizing strategies are devised for Daytime period, and their economic performances with the change of feed-in tariffs are compared. Moreover, the battery capacities of three schemes are optimized from both technical and economic perspectives. Finally, the developing trends of three schemes are analyzed to assist customers in selecting the most applicable one according to their demands.