考虑电解槽寿命的离网风光互补制氢系统双层嵌套配置优化策略研究OA

To accurately match local resources of off-grid wind-solar complementary hydrogen production systems and reduce life cycle cost,a capacity configuration optimization method was proposed.Energy efficiency models of photovoltaic units,wind turbines,and batteries were established,and particularly,an electrolyzer lifetime model was developed to dynamically quantify the influence of hydrogen production power on equipment lifetime,thereby overcoming the limitations of the traditional fixed-lifetime assumption.With the objective of minimizing levelized cost of hydrogen(LCOH),a two-layer nested optimization framework was designed.The inner layer adopted a rule-based energy management method to realize power distribution,while the outer layer applied the ant colony optimization algorithm to optimize the system capacity parameters.Actual wind and solar resource data from Baxoi,Tibet and Golmud,Qinghai were selected for validation.The results showed that the proposed strategy significantly reduced the LCOH and effectively improved the economic performance of the system compared with traditional methods,thus providing a theoretical basis for the engineering application of off-grid hydrogen production systems.