Abstract：The load shedding and wind/solar energy curtailment often occur in traditional isolated AC/DC hybrid microgrids with high proportion renewable energy sources and limited energy storage and controllable power source capacity. In order to improve the reliability of power supply and the consumption of renewable energy sources, an AC/DC/hydrogen/heat/gas energy deeply coupled energy hub structure based on hydrogen storage system was designed firstly. And a TRO model considering generation and loads uncertainties was built to achieve multi-energy coordinated optimal scheduling. The operation states of energy conversion and storage equipment were determined in the first stage, and the worst scenario and scheduling scheme were determined in the second stage. The conservativeness of scheduling scheme can be adjusted flexibly by changing uncertainty parameters. Then the model was transformed into a master problem and a slave problem with mixed integer linear form based on the strong duality theory and the big-M approach, so the model can be solved by column and constraint generation algorithm. Finally, the results of case studies can verify the rationality of the optimal model, the effectiveness of the solving algorithm and the robustness and economy of the scheduling results.
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2021, Vol. 36 
