热力发电2025，Vol.54Issue(8)：95-103,9.DOI:10.19666/j.rlfd.202505082
沙戈荒新能源大基地煤电掺烧绿氢降碳系统配置方案研究
Configuration scheme for a decarbonization system via green hydrogen co-firing in coal-fired power plant at large desert,gobi,and wasteland power base
摘要
Abstract
To optimize the system configuration scheme for green hydrogen co-firing in coal-fired power units at large renewable bases in desert,gobi,and wasteland areas to achieve decarbonization,a comprehensive system framework encompassing hydrogen production,hydrogen storage,energy storage,and hydrogen co-firing in coal-fired power units is established.It develops a system configuration optimization model aiming for the lowest hydrogen production cost under a decarbonization target constraint.The model is solved and analyzed using mixed-integer linear programming to explore the optimal configuration solutions for a decarbonization system via green hydrogen co-firing in different operating scenarios.The model is demonstrated through a case study.Under the constraint of 10%decarbonization for a single coal-fired power unit,if only curtailed wind and solar power are used for hydrogen production,the annual utilization hours of the hydrogen production equipment are only about 2 000 hours,and the green hydrogen cost is as high as 3.02 yuan/m³(33.8 yuan/kg).This leads to an increase of 0.217 9 yuan/(kW·h)in the per-unit electricity cost for a single coal-fired power unit.Configuring electrochemical energy storage can reduce the scale of hydrogen production and storage systems and increase the utilization hours of hydrogen production equipment.However,limited by high energy storage construction costs,the energy storage scale needs to be optimally determined,and the green hydrogen cost can be reduced to approximately 2.35 yuan/m³(26.3 yuan/kg)at its lowest,which leads to an increase of 0.165 2 yuan/(kW·h)in the per-unit electricity cost for a single coal-fired power unit.Furthermore,if a small amount of grid electricity can be introduced to assist hydrogen production within the scope of green hydrogen certification,system construction costs can be further reduced.The hydrogen production cost is expected to decrease to approximately 2.12 yuan/m³(23.7 yuan/kg)and the per-unit electricity cost for a single coal-fired power unit would increase by 0.142 6 yuan/(kW·h).关键词
新能源大基地/绿氢掺烧/煤电降碳/制氢/储能Key words
renewable energy base/green hydrogen co-firing/coal-fired power plant decarbonization/hydrogen production/energy storage引用本文复制引用
陈文琦,高群翔,张晨昕,黄玉磊,周秦,林祥东,张俊春,薄煜,李文凯,黄大岸,张伊甸..沙戈荒新能源大基地煤电掺烧绿氢降碳系统配置方案研究[J].热力发电,2025,54(8):95-103,9.基金项目
中国能源建设股份有限公司重点研发项目(CEEC2023-ZDYF-02) Key Research and Development Project of China Energy Engineering Group Co.,Ltd.(CEEC2023-ZDYF-02) （CEEC2023-ZDYF-02）
