计及未上网电量的多层级碳排放因子修正方法

doi:10.11930/j.issn.1004-9649.202509030

中国电力 ›› 2026, Vol. 59 ›› Issue (3): 27-36.DOI: 10.11930/j.issn.1004-9649.202509030

• 电-碳协同下分布式能源系统运营关键技术 • 上一篇下一篇

计及未上网电量的多层级碳排放因子修正方法

成涛¹(), 杨芾藜¹(), 苏宇¹(), 陈文礼¹, 杨振华²(), 向月²

1. 国网重庆市电力公司营销服务中心，重庆　400023
2. 四川大学电气工程学院，四川成都　610065

收稿日期:2025-09-15 修回日期:2025-11-11 发布日期:2026-03-16 出版日期:2026-03-28
作者简介:
成涛（1972），男，硕士，高级工程师，从事电力系统及其自动化研究，E-mail：chengtao@cq.sgcc.com.cn
杨芾藜（1987），男，硕士，高级工程师，从事电测量技术研究，E-mail：yangfuli@cq.sgcc.com.cn
苏宇（1994），女，硕士，工程师，从事电测量与传感技术研究，E-mail：suyu2@cq.sgcc.com.cn
杨振华（2003），男，通信作者，硕士研究生，从事电碳耦合技术研究，E-mail：yzhenhua111@163.com
基金资助:
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）；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）。

Multi-level carbon emission factor correction considering non-grid-connected electricity

CHENG Tao¹(), YANG Fuli¹(), SU Yu¹(), CHEN Wenli¹, YANG Zhenhua²(), XIANG Yue²

1. State Grid Chongqing Electric Power Company Marketing Service Center, Chongqing 400023, China
2. College of Electrical Engineering, Sichuan University, Chengdu 610065, China

Received:2025-09-15 Revised:2025-11-11 Online:2026-03-16 Published:2026-03-28
Supported by:
This work is supported by National Natural Science Foundation of China (Fundamental Theory and Technology of Autonomically 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).

摘要/Abstract

摘要：

准确的碳排放因子是实现电力系统低碳转型的核心依据。现行电网平均碳排放因子时空颗粒度粗，碳流追踪方法又难以适配实际复杂电网海量节点计算需求，且两者皆忽略区域未上网电量。为此，提出一种考虑未上网电量的多层级区域碳排放因子修正方法。该方法基于电气剖分理论构建碳排放因子求解框架，将实际电网按电压等级自上而下划分为省级、地市级、终端用户3层结构。在各层级计算中采取分层递进策略，最终将未上网电量环境效益归属至所在节点，对已上网电量碳排放因子进行动态修正。省级-地市-终端用户3层算例验证了方法的可行性，实现了时空颗粒度精细化，并充分计及分布式资源环境效益，可为区域电力系统碳核算提供工程实用化技术路径。

关键词: 碳排放因子, 已上网电量, 未上网电量, 修正计算

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.

Key words: carbon emission factor, grid-connected electricity quantity, non-grid-connected electricity quantity, correction calculation

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.

CHENG Tao, YANG Fuli, SU Yu, CHEN Wenli, YANG Zhenhua, XIANG Yue. Multi-level carbon emission factor correction considering non-grid-connected electricity[J]. Electric Power, 2026, 59(3): 27-36.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202509030

https://www.electricpower.com.cn/CN/Y2026/V59/I3/27

图/表 10

图 1 电网分层示意

Fig.1 Layered schematic of the power grid

图 2 系统拓扑结构

Fig.2 System Topology

图 3 机组碳排放因子

Fig.3 Generator carbon emission factor

图 4 系统上网电量与未上网电量分布

Fig.4 Distribution of grid-connected vs. non-grid-connected electricity

图 5 省级节点碳排放因子

Fig.5 Provincial node carbon emission factor

图 6 地市级节点碳排放因子

Fig.6 Prefecture-level node carbon emission factor

表 1 区域碳排放因子

Table 1 Regional carbon emission factor

区域	负荷总量/(MW·h)	区域碳排放因子/(kg·(MW·h)^–1)
YB区	290	0.40
YZ区	195	0.97
JB区	155	0.56
BN区	155	0.92
NA区	50	1.10
IES	12	0.84

图 7 考虑未上网电量修正后的省级节点碳排放因子

Fig.7 Corrected provincial-level node carbon emission factor considering non-grid-connected electricity

图 8 未上网电量修正前后部分节点碳因子对比

Fig.8 Comparison of carbon factors of some nodes before and after correction of non-grid-connected electricity

图 9 不同未上网电量对节点碳排放因子的影响

Fig.9 Influence of different non-grid-connected electricity quantities on node carbon emission factors

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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

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计及未上网电量的多层级碳排放因子修正方法

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