具有V2G功能的电动汽车快速充放电方法  

Fast charging and discharging method for electric vehicle with V2G function

作　　者：吴凯[1] 程启明[1] 李明[1] 白园飞[1] 陈根[1] 

机构地区：[1]上海电力学院自动化工程学院,上海200090

出　　处：《电力自动化设备》2014年第2期30-34,共5页Electric Power Automation Equipment

基　　金：上海市重点科技攻关计划项目(11510500800);上海市教委"085工程"科研项目(Z08509122);上海市教委重点学科建设项目(J51301)~~

摘　　要：为充分发挥电动汽车的能量双向流动特性,提出一种具有V2G功能的电动汽车快速充放电方法。可逆充放电机主要包括可逆PWM整流器和双向DC/DC变换器。可逆PWM整流器采用前馈解耦的电压电流双闭环控制,并用LCL滤波代替L滤波,在保证相同滤波效果条件下,降低电感值并提高了系统的响应速度;双向DC/DC变换器采用电流闭环控制来有效控制充放电电流维持在恒定值,采用脉冲充电和恒流放电使电动汽车的充放电电流维持在35 A左右,实现快速充放电功能。仿真结果证明了所提方法的正确性和可行性。To make full use of the bi-directional energy flow of EV（Electric Vehicle）,a fast charging and discharging method is proposed for EV with V2G function. The reversible charger of EV contains a reversible PWM rectifier and a bi-directional DC/DC converter. The former is controlled by the feedforward decoupled voltage-current dual close loops and its L filter is replaced by LCL filter,which decreases the inductance for same filtering effect and improves the system response speed;the latter is controlled by the current close loop to effectively keep the pulse charging or constant-current discharging current around 35 A for realizing the fast charging and discharging function. Simulative results show the validity and feasibility of the proposed method.

关 键 词：电动汽车 电池 V2G 可逆PWM整流器 双向DC DC变换器 脉冲充电 恒流放电 前馈控制 

分 类 号：TM76[电气工程—电力系统及自动化] U469.72[机械工程—车辆工程]