摘要
氢能是中国能源行业低碳化转型的重要支撑。电制氢技术可将电网难以消纳的新能源转换成绿氢注入天然气管道,实现绿氢的远距离传输与利用。文中提出一种计及绿氢注入的电-气综合能源系统优化调度模型,且计及电网辅助服务以支撑高比例新能源消纳。首先,建立了计及绿氢注入及管道管存的天然气系统准动态运行模型;然后,构建了计及调峰与灵活备用的辅助服务的综合能源系统灵活运行模型。最后,算例测试量化评估了电制氢及多能协同对于支撑新能源消纳及提高系统运行灵活性的价值,并且分析了新能源渗透率、管道掺氢比限制对于综合能源系统调度结果的影响机理。
Hydrogen energy can provide important support for the low-carbon transformation of China’s energy industry.The power-to-hydrogen technology can convert the renewable energy that is difficult to be accommodated by the power grid into green hydrogen and inject it into the natural gas pipelines,which enables the long-distance transmission and utilization of green hydrogen.This paper proposes an optimal dispatch model of the electricity-gas integrated energy system with green hydrogen injection,in which the grid auxiliary services are taken into account to accommodate high proportion of renewable energy.First,the quasidynamic operation model of the natural-gas system that considers green hydrogen injections and pipeline line-pack is established.Then,a flexible operation model of the integrated energy system considering auxiliary services of peak regulation and flexible reserve is constructed.Finally,numerical examples quantify and evaluate the value of power-to-hydrogen and multi-energy coordination on accommodating renewable energy and improving system operation flexibility.The impact mechanism of penetration ratio of renewable energy and ratio limit of pipeline injected hydrogen on dispatch results of integrated energy system is analyzed.
作者
陈胜
张景淳
韩海腾
卫志农
孙国强
周亦洲
CHEN Sheng;ZHANG Jingchun;HAN Haiteng;WEI Zhinong;SUN Guoqiang;ZHOU Yizhou(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2023年第11期110-120,共11页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(52007051)
中国科协青年人才托举工程项目(2021QNRC001)
中央高校基本科研业务费专项资金资助项目(B220202006)。
关键词
综合能源系统
优化调度
电-气-氢混联
准动态模型
辅助服务
灵活运行
integrated energy system
optimal dispatch
electricity-gas-hydrogen hybrid
quasi-dynamic model
auxiliary service
flexible operation
