Optimization strategy of wind and solar hydrogen production alkaline electrolyzer cluster considering energy consumption characteristics
The purpose of this study is to achieve carbon peak and carbon neutrality,as well as low-carbon and clean transition of energy.Specifically,an optimized strategy was proposed for the alkaline electrolyzer cluster in power-to-hydrogen(P2H)systems considering energy consumption characteristics.This system operated in an off-grid mode,where wind and solar power were utilized to supply electricity.Battery storage was employed for peak shaving and valley filling to ensure stable and continuous hydrogen production in alkaline electrolyzers.Based on the models of wind and solar power generation,the dynamic hydrogen production efficiency and the start-stop of electrolyzers were optimized for multi-train operation.Moreover,the objective function was established to maximize the overall net profit of the system.The results showed that the alkaline electrolyzer cluster optimization strategy improved the annual system revenue by nearly 5％without changing the capacity of the system equipment.Meanwhile,the strategy reduced the curtailment rate and the number of start-stops of electrolyzers.The new cluster optimization strategy could consume new energy power more fully and help gain higher revenue.The results of this study were expected to provide guidance for the efficient production and operation scheduling strategies of the alkaline electrolyzer cluster.
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