电动汽车接入电网技术的双向变流系统研究  

Research on System of Bi-Directional Converter in Technologies of Connecting Electric Vehicle with Power Grid

作　　者：潘莹[1] 杜成刚[2] 

机构地区：[1]上海电力学院,上海200090 [2]上海市电力公司,上海200122

出　　处：《供用电》2012年第2期6-9,共4页Distribution & Utilization

摘　　要：目前,国内研制只具备充电功能的电动汽车充电装置,还不具备目前被广泛关注的向电网放电的功能。为实现电动汽车与电网之间的双向能量交换,研究了采用AC/DC双向变流和DC/DC双向变流的两级变流的拓扑结构,讨论了基于dq变换的空间矢量脉冲宽度调制(PWM)双闭环控制的AC/DC双向变流系统和采用电流滞环跟踪PWM调制技术控制的DC/DC双向变流系统,并通过Matlab仿真,验证了拓扑结构及控制策略的可行性。Currently, the power storage device of electric vehicle developed domestically owning the only function of charge hasn＇t processed the function of discharge to grid extensively concerned nowadays. To achieve energy exchange between electric vehicles and power grid, the two-stage converter topology involving AC/DC bi-directional converter and DC/DC bi-directional converter are studied. The system of AC/DC bi-directional converter with dual closed-loop control by the space vector PWM based on dq transformation is discussed, so is the controlled system of DC/DC bi-directional converter by the technology of hysteresis simulation tracking PWM modulation adopted. Moreover the topology and strategy of control is proven feasible by Matlab simulation.

关 键 词：电动汽车 双向变流系统 充放电装置 

分 类 号：U469.72[机械工程—车辆工程]