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Coordinated Optimal Scheduling of Multi-energy Microgrid Considering Uncertainties

Along with the rapid development of regional energy internet and increasingly coupling relation of multiple energies, the paper proposed an optimal operation model of multi-energy microgrid considering uncertainties. In this paper, time-of-use price, uncertainty of renewable energy resources and loads forecasting, energy conversion, operation characteristics of distributed units and energy storage devices are considered. Various forms of energy storage devices are used as energy storage equipment within the microgrid system. The model is solved with mixed integer programming method to obtain the start-stop status, optimal outputs and total operation cost of each units and energy storage, and then compared it with traditional microgrid dispatch model. The simulation results indicate that the proposed model can improve the flexibility of energy supply while insure the system reliability and have good economic benefits.