不同地区太阳能光伏电解水制氢与储氢系统模拟研究

SIMULATION STUDY OF HYDROGEN PRODUCTION AND STORAGE SYSTEM BY SOLAR PHOTOVOLTAIC ELECTROLYSIS WATER IN DIFFERENT REGIONS

该文设计一种家用太阳能与电网联合供电的电解水制氢与储氢系统,基于北京、银川和哈密3座城市不同气候条件,利用TRNSYS和GenOpt软件对比分析了系统的动态性能。结果表明:北京、银川和哈密三市的光伏组件最佳倾斜角度分别为36.56°、37.81°和41.87°,对应的光伏系统年总发电量为38329.2、47169.8和50701.2 kWh;基于相同的供氢速率和储氢罐容量,该系统年产氢量大致相同,北京为13151.5 m^(3),银川为13124.1 m^(3),哈密为13144.7 m^(3);哈密市从电网取电量最少,其太阳能制氢效益最高为87.73%,其次为银川市85.57%,北京市最低,为66.58%。

An electrolytic water hydrogen production and storage system by combined solar energy with power grid was designed for household application in this paper.Based on different climate conditions of Beijing,Yinchuan and Hami,the dynamic performance of this system was analyzed by the software of TRNSYS and GenOpt.The results indicate that the optimal tilt angles of PV modules for three cities of Beijing,Yinchuan and Hami are 36.56°,37.81°and 41.87°,respectively.The total power generated from PV modules are 38329.2,47169.8 and 50701.2 kWh/year,respectively.Based on the same hydrogen supply rate and hydrogen storage tank capacity,the annual hydrogen generation in the three cities is roughly the same,13151.5 m^(3)in Beijing,13124.1 m^(3)in Yinchuan,and 13144.7 m^(3)in Hami.Hami takes the least amount of electricity from the power grid,resulting in a highest hydrogen production benefit of 87.73%.Yinchuan is 85.57%,and Beijing has the lowest benefit of 66.58%.