电氢耦合系统定碳排运行域分析方法

Analysis method of committed carbon emission operational region for electricity-hydrogen coupling system

精准刻画电氢耦合系统的低碳运行空间,有助于量化并充分挖掘氢能系统灵活运行特性对提高新能源消纳、电力系统安全经济运行水平的积极作用。针对目前缺少基于“域”的碳分析方法等问题,提出电氢耦合系统定碳排运行域(CCEOR-EHS)的概念。探索电氢耦合系统的运行机制,提出CCEOR-EHS建模方法;剖析CCEOR-EHS几何特征,构建电氢耦合系统的低碳评估指标体系,全面评估CCEOR-EHS形状特征与低碳运行水平间的关联关系;提出基于逐点仿真法的CCEOR-EHS边界高效求解方法,可视化电氢耦合系统低碳运行空间。采用IEEE标准系统进行仿真分析,验证所提方法的有效性。结果表明CCEOR-EHS可有效反映系统的低碳运行水平、电氢耦合运行关系等,并能为电力系统的低碳运行提供科学的理论支撑与决策依据。

Accurate characterization of the low-carbon operation space for the electricity-hydrogen coupling system helps to quantify and fully exploit the positive effects of the flexible operation characteristics of the hydrogen energy system in improving the renewable energy consumption and the safe and economic operation level of the power system.In view of the lack of domain-based carbon analysis methods,the concept of committed carbon emission operational region for electricity-hydrogen coupling system(CCEOR-EHS)is proposed.The operation mechanism of electricity-hydrogen coupling system is explored and the modeling method of CCEOR-EHS is proposed.The geometric characteristics of CCHOR-EHS are analyzed,the low-carbon assessment index system of electricity-hydrogen coupling system is constructed,and the association relationship between the shape characteristics of CCHOR-EHS and the low-carbon operation level is comprehensively assessed.The IEEE standard system is used for simulation analysis to verify the effectiveness of the proposed method.The results show that the CCEOR-EHS can effectively reflect the low-carbon ope-ration level and the electricity-hydrogen coupling operation relationship of the system,and provide the scientific theoretical support and decision-making basis for the low-carbon operation of the power system.