Due to the stochastic nature of renewable energy resources, peak load shifting control by the energy storage system is needed to reach a high penetration level of renewable power generation into power grid. Using hydrogen as an energy storage carrier has many advantages, while the high cost of hydrogen storage is the main drawback. In this paper, a new optimal operation strategy is proposed, the main idea is to set electrolysis cells, fuel cells and hydrogen storage devices geographically closed to a hydrogen consumer. In this situation, hydrogen produced by surplus electricity can be directly delivered to the hydrogen consumer through gas pipes, thus the coordinated control of the hydrogen consumer's production schedule can be realized. In this study, the power balance model of a renewable energy system with hydrogen storage is built, and the minimum hydrogen storage volume needed for power balance is calculated through MATLAB simulation. The simulation results show that the needed hydrogen storage volume for power balance can be reduced via properly coordinated control of the cooperated hydrogen consumer's production schedule.
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