基于V2G技术的蓄电池充放电仿真  

Battery Charging and Discharging Simulation Based on V2G Technology

作　　者：王君瑞[1] 张梦月 贾思宁 单祥 WANG Jun-rui;ZHANG Meng-yue;JIA Si-ning;SHAN Xiang(North Minzu Univesity,Yinchuan Ningxia 750021,China)

机构地区：[1]北方民族大学

出　　处：《计算机仿真》2019年第11期75-78,95,共5页Computer Simulation

基　　金：国家自然科学基金(51467001);宁夏重点研发计划项目(2018BEE03016)

摘　　要：随着电动汽车的发展,V2G技术变得越来越重要。设计了一种基于PWM整流器和双向DC/DC变换器的V2G充放电拓扑,用以控制网侧与蓄电池之间的能量流动。系统具有独立的控制系统,前级AC/DC变换器采用PI控制结合重复控制的复合控制方式,实现对电流的无静差跟踪。后级DC/DC变换器采用传统PI控制,利用MATLAB/Simulink实现对蓄电池的阶段恒流充电和蓄电池的恒流放电仿真。仿真结果表明在充放电过程中网侧电流能够实现正弦化和单位功率因数,相较传统PI控制,更能够降低网侧电流谐波含量。实现了V2G要求的能量的双向流动,满足系统要求。With the development of electric vehicles, V2 G technology has become more and more important. In this paper, a V2 G charge and discharge topology based on PWM rectifier and bidirectional DC/DC converter was designed to control the energy flow between the grid side and the battery. The system has an independent control system. The pre-stage AC/DC converter adopts PI control combined with repeated control of the composite control mode to achieve no static tracking of the current. The latter stage DC/DC converter adopts traditional PI control, and uses MATLAB/Simulink to realize the stage constant current charging of the battery and the constant current discharge simulation of the battery. The simulation results show that the grid side current can realize sinusoidal and unit power factor during the charging and discharging process, reduce the current harmonic content of the grid side, and realize the bidirectional flow of energy required by V2 G to meet the system requirements.

关 键 词：双向充放电机 整流器 重复控制 

分 类 号：TM743[电气工程—电力系统及自动化]