考虑供需平衡度的能源枢纽定址配容交替优化方法  

An alternate optimization method for energy hub siting and sizing considering supply-demand balance

作　　者：阮涛 朱三立 葛辉 张晓燕 RUAN Tao;ZHU Sanli;GE Hui;ZHANG Xiaoyan(China Patent Information Center,Beijing 100088,China;College of Automation&College of Artificial Intelligence of Nanjing University of Posts and Telecommunica-tions,Nanjing 210023,China;NARI Technology Nanjing Control Systems Co.,Ltd.,Nanjing 211106,China)

机构地区：[1]中国专利信息中心,北京100088 [2]南京邮电大学自动化学院、人工智能学院,南京210023 [3]国电南瑞南京控制系统有限公司,南京211106

出　　处：《浙江电力》2024年第9期29-38,共10页Zhejiang Electric Power

基　　金：国家自然科学基金(52077106);国家电网有限公司总部项目科技项目(5400-202119156A-0-0-00)。

摘　　要：EH(能源枢纽)可有效促进高不确定性可再生能源消纳,而现行EH规划方法中未充分考虑定址与配容的相关性。因此,提出一种考虑BSD(供需平衡度)的交替优化方法。首先,基于图论理论和相似度加权定义了表征能路传输代价的EM(能矩)概念,提出以EM总和最小为目标的能源互联网系统分区优化准则;然后,根据供用能实体时序能量交互信息计算每个EH辖区内的BSD指标;继而,以寻求整个能源互联网系统BSD均值最高为目标,提出EH内部多能耦合单元的配容策略;在此基础上,构建基于K均值聚类的EH定址与配容交替优化模型,并通过迭代EH数量获得最优解。最后,通过算例分析,结果表明所提方法能有效提升EH规划的准确性与经济性。Energy hubs(EHs)can effectively facilitate the consumption of renewable energy with high uncertainty.Still,the existing EH planning methods have not fully considered the correlation between siting and sizing.Hence,this study introduces an alternate optimization method considering the supply-demand balance.Firstly,utilizing graph theory and weighted similarity,the study defines the energy moment(EM),a concept that represents the en⁃ergy transmission cost,and proposes an optimal partitioning criterion for energy internet system with minimum total EM as the goal.Subsequently,the supply-demand balance index within each EH is calculated based on the time-series energy interaction information of the energy supply and demand entities.The paper then proposes a sizing strategy for multi-energy coupling units within EH,aiming to maximize the average supply-demand balance of the entire energy internet system.On this basis,the paper constructs an alternate optimization model for EH siting and sizing based on K-means clustering,and achieves an optimal solution through iteration of EHs.Finally,case studies are presented,and their results indicate that the proposed method can significantly improve the accuracy and economy of EH planning.

关 键 词：能源枢纽 供需平衡度 定址 配容 交替优化 

分 类 号：TM73[电气工程—电力系统及自动化]