Abstract:
Hydrogen energy holds significant development potential and is crucial to the future energy landscape. Using wind power as a renewable energy technology combined with hydrogen production presents a solution for sustainable energy development. An optimization strategy is proposed in this study to optimize the scheduling of alkaline-proton exchange membrane (PEM) hybrid electrolyzers for multi-train operation, considering the differences in dynamic response and energy consumption characteristics based on wind power generation, hydrogen in oxygen and multiple electrolyzer models. The goal is to maximize net system revenue in an off-grid setup by harnessing renewable energy sources for power generation and incorporating storage batteries to ensure stable and continuous system operation. The results show that the multi-row optimization of the alkaline-PEM hybrid electrolyzers scheduling strategy increases annual revenue by 12.47% and reduces the power discard rate by 1.34% without altering the system equipment capacity, compared to conventional synchronous operation without considering the power-efficiency characteristics of the electrolyzers. This strategy accounts for the differences in dynamic response between the two types of electrolyzers, ensuring optimal utilization of wind and solar resources. Finally, the system electrolyzer capacity ratios were analyzed. The contribution of this study is expected to guide the scheduling of hydrogen production in alkaline-PEM hybrid electrolyzers for large-scale hydrogen production projects.