基于两级结构的电动汽车直流充电桩建模
Modeling of DC Charging Pile for Electric Vehicles Based on Two-stage Structure
杨闯闯 1俞波2
作者信息
- 1. 国网电力科学研究院有限公司,南京 211106
- 2. 国网电力科学研究院有限公司,南京 211106;国网电力科学研究院实验验证中心,南京 211106
- 折叠
摘要
基于电动汽车直流充电桩的AC/DC和DC/DC两级结构,通过对两级电路结构的功能要求进行分析,选择Vienna电路作为前级AC/DC整流电路,Buck-Boost电路作为后级DC/DC电压变换电路,组合作为主电路搭建MATLAB/Simulink仿真模型,并分别将负载设置为纯阻性负载和电池的PNGV模型进行仿真.仿真结果满足输出电压稳压精度、输出电压纹波和输入电流谐波等参数要求,证明了该模型具有应用于含电动汽车负载电网分析的价值,对于研究电动汽车充电对电网的影响具有积极的促进作用.
Abstract
Based on the two-stage(AC/DC and DC/DC)structure of a DC charging pile for electric vehicles(EVs)and through the analysis of the functional requirements of the two-stage circuit structure,a MATLAB/Simulink simulation model is built with a main circuit which consists of a Vienna circuit as the front-stage AC/DC rectifier and a Buck-Boost circuit as the rear-stage DC/DC voltage conversion circuit.Simulations are performed with load set as a pure resistive load and the PNGV model of a battery,respectively.Simulation results meet the requirement of parameters such as output voltage stability accuracy,output voltage ripple and input current harmonics,which proves that the model can be used to analyze the power grid loaded by EVs and promote the study on the impact of EVs on power grid.
关键词
直流充电桩/两级电路/仿真模型/PI控制Key words
DC charging pile/two-stage circuit/simulation model/PI control引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据