Multi-timescale scheduling of an integrated electric-hydrogen energy system with multiple types of electrolysis cells operating in concert with fuel cells

Li Han, Shiqi Wang, Yingjie Cheng, Shuo Chen and Xiaojing Wang

Energy, 2024, vol. 307, issue C

Abstract: Hydrogen energy storage system is widely used to solve the problem of new energy consumption, the development of its electrolysis cell (EC) and fuel cell (FC) technology types have tended to diversify. The advantages of various types of technology can be complementary. However, various types of EC and FC differ greatly in terms of time characteristics, start-stop capability, and working efficiency, etc. In order to make better use of the advantages of different types of hydrogen energy storage equipment, this paper proposes a multi-timescale scheduling strategy for the electric-hydrogen integrated energy system with multiple types of EC and FC operating in cooperation. Firstly, the state switching model of EC and FC, the output and consumption model of hydrogen and electricity are established. The operation characteristics of different types of equipment are analyzed. Then, the time characteristics of the equipment are matched with the scheduling time scale of the integrated energy system, so that a model of multi-timescale scheduling strategy for the electric-hydrogen integrated energy system is constructed. Finally, the simulation cases show that the proposed model and strategy have a positive effect on reducing the output fluctuation of coal-fired units and consuming wind power.

Keywords: Cooperative operation; Hydrogen energy storage; State switching; Multi-timescale (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:307:y:2024:i:c:s0360544224024812

DOI: 10.1016/j.energy.2024.132707

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