基于电网脆弱性评估的储能规划选址研究  

Research on energy storage site selection based on power grid vulnerability assessment

作　　者：孙顺祥 李金科 甄宏宁 杨赟 韩志锟 SUN Shunxiang;LI Jinke;ZHEN Hongning;YANG Yun;HAN Zhikun(China Energy Engineering Group Jiangsu Power Design Institute Co.,Ltd,Nanjing 211102)

机构地区：[1]中国能源建设集团江苏省电力设计院有限公司,南京211102

出　　处：《电气技术》2025年第3期7-14,共8页Electrical Engineering

基　　金：江苏省基础研究计划(自然科学基金)项目(BK20210048)。

摘　　要：在新型电力系统不断发展的背景下,为提升电力系统调节能力,满足电网调峰和顶峰需求,全国各地均在积极开展新型储能建设。新型储能具有双向传输、响应速度快等特性,在其接入电网后如何有效地提高主网网架的安全性,增强电网抵御故障冲击的能力,是储能规划选址阶段应重点考虑的问题。针对新型储能接入对分区电网脆弱性的影响,构建储能选址问题的多目标决策模型;考虑到传统电网脆弱性分析方法的不足,提出基于k-核分解的脆弱性评估方法,并将储能接入电网后不同典型运行场景下的主网系统脆弱性指标作为决策子目标,采用逼近理想解排序法(TOPSIS)综合评价储能目标接入点的最优解。以IEEE 39节点系统进行算例分析,验证了所提电网脆弱性评估方法和储能优化选址方法的合理性。Against the backdrop of the continuous development of new power system,various regions across the country are actively carrying out new energy storage construction to enhance the regulation capacity of the power system and meet the peak shaving and demand of the power grid.With the characteristics of bidirectional transmission and fast response speed,it is a key issue that should be considered in the site selection stage of energy storage planning,which involves how to effectively improve the security of the power grid and enhance the ability to resist the impact of faults after the new energy storage is access to the power system.A multi-objective decision-making model for energy storage site selection is constructed to address the impact of new energy storage access on the vulnerability of partitioned power grids.Faced with the shortcomings of traditional power grid vulnerability analysis methods,a new vulnerability assessment method based on k-core decomposition is proposed.The system vulnerability indicators under different typical operation scenarios after energy storage access to the power grid are taken as decision-making sub-targets,and the technique for order preference by similarity to an ideal solution(TOPSIS)decision method is used to comprehensively evaluate the optimal solution of energy storage target access point.The rationality and effectiveness of the proposed vulnerability assessment method and the energy storage site selection method are verified through the analysis of the IEEE 39-node system.

关 键 词：储能选址 电网脆弱性 k-核分解 典型运行场景 逼近理想解排序法(TOPSIS)多目标决策 

分 类 号：TM715[电气工程—电力系统及自动化]