摘要
随着高比例光伏广泛接入配电网节点电压和线路潮流越限问题日趋突出,同时还有可能会产生“弃光”现象。为此建立了配电网储能配置两阶段分布鲁棒优化模型,以提升配电网光伏消纳能力和安全性。该模型的第一阶段以最小化储能投资成本年值为目标确定储能的安装地点和容量。第二阶段模拟配电网全年典型日的最优运行,其目标是配电网年运行费用最小,其中采用基于2-范数距离的多个不确定集分别描述典型日光伏和负荷的不确定性,而且考虑储能四象限运行特性。采用列与约束生成算法和max-min子问题分解算法求解该模型,并在某实际10 kV配电网进行了仿真分析,验证了所提方法的可行性和有效性。
With the widespread integration of high proportion photovoltaics into the distribution network,the problem of node voltage and line flow exceeding limits is becoming increasingly prominent.And there is a possibility of"PV curtailment"phenomenon.Therefore,a two-stage distributionally robust optimization model is established for energy storage configuration in the distribution networks to enhance the photovoltaic consumption capacity and safety of distribution networks.The first stage of the model determines the installation location and capacity of energy storage with the goal of minimizing the annual investment cost of energy storage.The second stage simulates the optimal operation of the distribution network on typical days throughout the year,with the goal of minimizing the annual operating cost of the distribution network.Multiple uncertainty sets based on norm-2 distance are used to describe the uncertainty of the output of PVs and loads in the typical days respectively,and the four-quadrant operating characteristics of energy storage are considered.The column and constraint generation algorithm and max-min sub-problem decomposition algorithm are used to solve the model.And simulation analysis is conducted on an actual 10 kV distribution network to verify the feasibility and effectiveness of the proposed method.
作者
呼士召
吉时妤
江健健
董家读
许亮
王天霖
陈深
刘明波
HU Shizhao;JI Shiyu;JIANG Jianjian;DONG Jiadu;XU Liang;WANG Tianlin;CHEN Shen;LIU Mingbo(Guangdong Power Grid Co.,Ltd.,Guangzhou 510180,China;School of Electric Power Engineering,South China University of Technology,Guangzhou 510640,China;Guangdong Key Laboratory of Green Energy Technology,South China University of Technology,Guangzhou 510640,China)
出处
《南方电网技术》
北大核心
2026年第3期115-126,共12页
Southern Power System Technology
基金
国家自然科学基金资助项目(52077083)。
关键词
配电网
四象限储能
光伏和负荷的不确定性
最优配置
分布鲁棒优化
distribution network
four-quadrant energy storage
photovoltaics and loads uncertainty
optimal configuration
distributionally robust optimization
