风光耦合制氢系统典型设计方案研究

Research on Typical Design of Wind-Solar Coupled Hydrogen Production System

[目的]随着风光耦合制氢项目规模的增大和数量的增多,为了满足可再生能源制氢系统设计、主设备选型和经济方案比选需要,文章结合多个风光氢储一体化项目设计经验,提炼出风光耦合制氢系统典型设计方案,给出设计选型的依据。[方法]文章从风光氢储装机容量配置方案、电解制氢设备性能、整流电源选型、氢氧分离和纯化设计,以及经济性和绿氢市场等方面介绍风光耦合制氢设计方案。[结果]装机容量配置可通过约束条件采用开发的设计软件匹配优化;制氢设备选型现阶段仍以碱性电解装备为主,质子交换膜(Proton Exchange Membrane,PEM)电解装备可做小规模工程示范;晶闸管和绝缘栅双极型晶体管(IGBT,Insulated Gate Bipolar Transistor)整流电源各有优点,IGBT整流逐渐有工程应用;氢氧分离和纯化可根据项目规模特点作相应配置优化,节约投资;风光制绿氢市场规模巨大,随着化石能源价格高企和风光制氢系统造价降低,加之产品的绿色属性,绿氢已初具经济性。[结论]风光耦合制氢项目仍处于起步示范阶段,需要装备技术进步、设计方案优化和一定的政府政策支持,共同促进绿氢产业发展。

[Introduction]As wind-solar hydrogen production projects expand in scale and number,there is a growing demand for the design,equipment selection,and economic comparison of green hydrogen production systems.This paper,based on the design experience of multiple similar projects,extracts the typical design of wind-solar coupled hydrogen production system and provides the design selection.[Method]This paper introduced design scheme of wind-solar coupled hydrogen production from the aspects of windsolar hydrogen storage capacity configuration scheme,electrolysis hydrogen production equipment performance and rectifier comparison,hydrogen and oxygen separation and purification system design,and green hydrogen market and economy analysis.[Result]Capacity configuration can be optimized according to the developed design software through constraint conditions.alkaline electrolysis equipment is the preferred choice for hydrogen production,while proton exchange membrane(PEM)electrolysis equipment can be used for smallscale engineering demonstration.Both thyristor and insulated gate bipolar transistor(IGBT)power rectifiers have their own advantages,and IGBT rectification is gradually being applied in engineering practice.For saving investment,separation and purification can be optimized according to the scale of the project.The market for green hydrogen is huge.As fossil fuel prices continue to rise and the costs of wind-solar coupled hydrogen production systems decrease,coupled with its eco-friendly characteristics,green hydrogen has already become economically competitive.[Conclusion]The wind-solar coupled hydrogen production project is still in the initial demonstration stage,which requires equipment technology progress,design scheme optimization and government policy support to promote the development of green hydrogen industry.