电力建设2026，Vol.47Issue(5)：107-123,17.DOI:10.12204/j.issn.1000-7229.2026.05.009
考虑边际碳排放因子的配电网日前日内优化调度策略
Optimal Dispatch Strategy Considering Marginal Carbon Emission Factor for Day-Ahead and Intraday Operations
摘要
Abstract
[Objective]To address the dual requirements of low-carbon transformation and economic operation in power systems,this study aims to leverage the low-carbon demand response capability on the load side and enhance the flexibility of"source-grid-load-storage"regulation.A day-ahead and intraday optimal dispatch strategy based on marginal carbon intensity(MCI)is proposed.[Methods]First,a source-grid-load-storage dispatch framework for distribution network is established,considering time-of-use(TOU)pricing and MCI.An analytical expression for multi-scenario MCIs is derived,and a congestion matrix is introduced to analyze the impacts of marginal unit commitment and line congestion on MCIs at various grid nodes.Second,with overall operational economy and environmental sustainability as the primary objectives,a day-ahead and intraday optimal dispatch model is formulated,comprehensively accounting for three types of demand response constraints.Finally,case studies based on the IEEE 33-node system are conducted to analyze the spatiotemporal characteristics of MCIs and validate the effectiveness and superiority of the proposed dispatch method.[Results]The case analysis demonstrates that the proposed MCI calculation method effectively quantifies the influences of marginal unit commitment and line congestion on MCIs,while the demand response mechanism deeply exploits the low-carbon demand response capability on the load side.Compared with traditional low-carbon demand response approaches,the proposed strategy reduces total grid carbon emissions by 4.9%and decreases total operational cost by 1.32%.[Conclusions]Compared with static and dynamic carbon emission factors,the proposed MCI-based dispatch strategy enhances the dispatching accuracy of low-carbon demand response on the load side and improves the low-carbon economic operation level of distribution networks.关键词
边际碳排放因子/需求响应/源网荷储系统/多时间尺度调度/低碳经济运行Key words
marginal carbon intensity/demand response/source-grid-load-storage integrated system/multi-time scale dispatch/low-carbon economic operation分类
信息技术与安全科学引用本文复制引用
何武,苗世洪,艾小猛,马国真,邵华,刘雪飞..考虑边际碳排放因子的配电网日前日内优化调度策略[J].电力建设,2026,47(5):107-123,17.基金项目
国家自然科学基金项目(52177088) （52177088）
国网河北省电力有限公司科技研发资助项目(SGHEHZ00SJQT2400048) This work is supported by National Natural Science Foundation of China(No.52177088)and the State Grid Hebei Electric Power Co.,Ltd.Science and Technology Research and Development Funding Project(No.SGHEHZ00SJQT2400048). （SGHEHZ00SJQT2400048）
