Coordinated operation strategy for hydrogen energy storage in the incremental distribution network

Abstract

Summary Hydrogen energy storage is a crucial way to promote the consumption of renewable energy generation. This paper proposed a coordinated operational strategy for hydrogen energy storage in an incremental distribution network for renewable energy consumption. Firstly, the structure of the incremental distribution network containing hydrogen energy storage was given. The operation models of wind and photovoltaic power generation, electrolyzers, fuel cells and hydrogen storage tanks were systematically analyzed. The electrical coupling and the hydrogen coupling with hydrogen energy storage as a link were analyzed in this paper. On this basis, a block diagram of the coordinated operation strategy and a flow chart of the coordinated operation strategy for the whole system was constructed. The results showed that the strategy in this paper can significantly reduce the dependence on the public network for power purchase and can ensure a stable supply of electricity, hydrogen and heat loads to the system. The coordinated operation strategy of hydrogen energy storage proposed in this paper can efficiently realize the closed‐loop utilization of renewable energy, eliminate the waste of energy from wind and photovoltaic abandonment, and improve the level of renewable energy consumption. Novelty statement To the best of the authors' knowledge, at present, in terms of the operation of electric hydrogen energy systems, there are few studies on the coordinated operation of electro‐hydrogen energy systems with hydrogen energy storage as the core from hydrogen production to hydrogen production power generation in the previous research literature. Although hydrogen energy storage as an important means of renewable energy consumption has received extensive attention, most of the current studies only consider hydrogen energy storage as an additional energy module or a single energy storage module in the hybrid energy system, and there is almost no detailed information about the energy conversion and coordinated operation of hydrogen energy storage in the operation. Therefore, an electro‐hydrogen energy storage operation strategy is proposed, which takes hydrogen energy storage as a link between renewable energy and customer demand, provides a buffer for energy conversion, and plays a leading role in energy utilization.

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