配网侧电动汽车充电站等效建模研究  

Research on Equivalent Modeling of Electric Vehicle Charging Stations on the Distribution Network Side

作　　者：李华捷 李培强 LI Huajie;LI Peiqiang(School of Electronics,Electrical and Physics,Fujian University of Technology,Fuzhou,Fujian 350118,China)

机构地区：[1]福建理工大学电子电气与物理学院,福建福州350118

出　　处：《闽江学院学报》2024年第2期30-41,共12页Journal of Minjiang University

基　　金：国家自然科学基金项目(52377097)。

摘　　要：随着配网侧电动汽车充电站不断接入,电动汽车充电站充电时的动态行为将对配网产生影响,建立配网侧充电站等效模型有重要意义。传统充电站建模从充电时间、空间、人类行为等宏观角度出发,忽略其暂态特性。通过分析充电站充电时的动态行为,考虑其暂态特性,并基于充电机拓扑结构提出一种充电站三阶等效模型,运用Matlab/Simulink建立充电站负荷并网仿真平台,设置不同强度的扰动,采用总体测辨法进行辨识。仿真结果验证了所提出的充电站三阶等效模型的有效性、有较好的泛化能力。With the continuous connection of electric vehicle charging stations on the distribution network,the dynamic behavior of electric vehicle charging stations during charging will have an impact on the distribution network.Establishing an equivalent model of electric vehicle charging stations on the distribution network is of great significance.Traditional charging station modeling starts from macro perspectives such as charging time,space,and human behavior,ignoring its transient characteristics.This study analyzes the dynamic behavior of charging stations during charging,considering their transient characteristics.And based on the topology structure of the charger,a third-order equivalent model of the charging station is proposed.Matlab/Simulink is used to establish a simulation platform for grid connection of the charging station load.By setting different intensities of disturbances,the overall identification method is used for identification.The final simulation results verified the effectiveness and good generalization ability of the proposed third-order equivalent model for charging stations in this paper.

关 键 词：负荷建模 充电站 等效模型 参数辨识 

分 类 号：TM7[电气工程—电力系统及自动化]