基于质子交换膜（PEM）制氢模式,通过建立光伏系统模型与PEM制氢系统模型、搭建不同耦合方式的光伏光热PEM电解水制氢实验系统,开展光伏、光热耦合PEM制氢系统运行策略的研究。模拟与实验结果表明,直接耦合光伏制氢系统的制氢速度随太阳辐照度的变化而变化,在相同工况下,系统损耗更小,但制氢稳定性较差;间接耦合系统几乎不受天气影响,系统可稳定持续制氢,但系统较为复杂;独立光热系统更易保证电解液温度在50~80 ℃。
Abstract
Based on the PEM hydrogen production model, develop models for both PV and PEM hydrogen production systems, and construct experimental setups for photovoltaic and photothermal PEM water electrolysis （PVPT-PEM）with various coupling configurations to explore the operational strategies of PV and photothermal-coupled PEM hydrogen production systems. Simulation and experimental results show that the hydrogen production rate of the direct-coupled PV system varies with solar irradiance. Under the same operating conditions, this system shows lower losses but suffers from reduced hydrogen production stability. In contrast, the indirect-coupled system is less affected by weather conditions, allowing for stable and continuous hydrogen production, although with increased system complexity. The independent photothermal system more effectively maintains the electrolyte temperature within the range of 50-80 ℃.
关键词
太阳能 /
电解槽 /
制氢 /
光伏 /
光热 /
质子交换膜
Key words
solar energy /
electrolytic cell /
hydrogen production /
photovoltaics /
photothermal /
PEM
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