基于风光氢储一体化系统的容量配置优化及经济评价

Capacity allocation optimization and economic evaluation based on wind-solarhydrogen-storage integrated system

风光波动电源发电制氢是实现风光资源高效消纳、平抑出力波动并网的重要途径之一,而风光资源的不稳定属性直接影响制氢系统的运行效率和经济效益。为此,以风光氢储一体化系统为基础,分析制氢系统动态特性,并结合系统运行策略与自适应粒子群算法进行该系统的容量配置优化,进一步评估系统的经济性。结合案例分析表明:风光互补发电制氢可以有效平抑风光发电波动,其制氢效率相比单一光伏制氢的10.25%和单一风电制氢的23.39%,提高至32.17%,且风光互补制氢的经济效益显著优于单一制氢,当售氢价格为29.85元/kg时,内部收益率可达8%,研究成果可为开展风光制氢技术的能效和经济评价提供参考。

Hydrogen production based on fluctuating power generation by wind and solar is an important way to efficiently consume the wind-solar resources and stabilize the output fluctuation for grid connection.However,the unstable attribute of wind-solar resources has a direct relation to the operating efficiency and economic benefits of hydrogen production system.For this reason,the hydrogen production system was analyzed in terms of its dynamic characteristics based on the wind-solar-hydrogen-storage integrated system.In combination with system operation strategy and the adaptive PSO algorithm,the system capacity allocation was optimized and the system economy was further evaluated.Specifically,an analysis was conducted based on specific cases,and the analysis results demonstrate that the wind-solar hybrid hydrogen production can effectively stabilize the wind-solar generation fluctuation,and has the efficiency raised to 32.17%,which is apparently higher than the single photovoltaic hydrogen production(10.25%)and the single wind power hydrogen production(23.39%).Moreover,the economic benefit of wind-solar hybrid hydrogen production is significantly better than that of single hydrogen production.For example,the internal rate of return(IRR)of wind-solar hybrid hydrogen production can reach 8%when the hydrogen is priced at 29.85 yuan/kg.Generally,the research results are of great reference value for the energy efficiency and economic evaluation of wind-solar hydrogen production technology.