中国电力2026，Vol.59Issue(3)：27-36,10.DOI:10.11930/j.issn.1004-9649.202509030
计及未上网电量的多层级碳排放因子修正方法
Multi-level carbon emission factor correction considering non-grid-connected electricity
摘要
Abstract
Accurate carbon emission factors serve as the core basis for realizing the low-carbon transition of power systems.Currently,the average carbon emission factor of the power grid has coarse spatiotemporal granularity,while the carbon flow tracing methods struggle to meet computational requirements of massive nodes in actual complex power grids.Moreover,both overlook regional non-grid-connected electricity quantity.To address this,a multi-level regional carbon emission factor correction method considering non-grid-connected electricity quantity is proposed.Based on the electrical partitioning theory,this method constructs a solution framework for carbon emission factors and divides the actual power grid into three hierarchical structures(provincial-level,prefecture-level,and end-user level)from top to bottom according to voltage levels.A hierarchical and progressive strategy is adopted in the calculation of each level,ultimately attributing the environmental benefits of non-grid-connected electricity quantity to the corresponding nodes and dynamically correcting the carbon emission factors of grid-connected electricity quantity.Case studies at three levels(provincial,prefecture,and end-user)verify the feasibility of the method,achieving refined spatiotemporal granularity and fully accounting for the environmental benefits of distributed resources.It provides an engineering-practical technical pathway for carbon accounting of regional power systems.关键词
碳排放因子/已上网电量/未上网电量/修正计算Key words
carbon emission factor/grid-connected electricity quantity/non-grid-connected electricity quantity/correction calculation引用本文复制引用
成涛,杨芾藜,苏宇,陈文礼,杨振华,向月..计及未上网电量的多层级碳排放因子修正方法[J].中国电力,2026,59(3):27-36,10.基金项目
国家自然科学基金资助项目(基于广义碳轨迹的区域能源互联网自律协调规划与优化运行基础理论与关键技术,U2166211) （基于广义碳轨迹的区域能源互联网自律协调规划与优化运行基础理论与关键技术,U2166211）
国家电网有限公司科技项目(基于区域修正系数的电碳间接排放因子计量方法研究,B32037250000). This work is supported by National Natural Science Foundation of China(Fundamental Theory and Technology of Autono-mically Coordinated Regional Energy Internet Planning and Operation Based on Generalised Carbon Emission Trajectory,No.U2166211),Science and Technology Project of SGCC(Research on the Measurement Method of Electricity-Carbon Indirect Emission Factor Based on Regional Correction Coefficient,No.B32037250000). （基于区域修正系数的电碳间接排放因子计量方法研究,B32037250000）
