电动汽车充电机前级整流系统控制研究  

Control Research of Electric Vehicle Charging Station Front-end Rectifier System

作　　者：尹军[1] 党超亮 刘朝阳 王颖 

机构地区：[1]西安理工大学自动化学院,陕西西安710048 [2]北京朗晟开关设备有限公司,北京100076

出　　处：《电气传动》2017年第6期50-55,共6页Electric Drive

摘　　要：随着大数据时代与电动汽车的快速发展,对安全可靠的高压直流供电系统的需求日益迫切。在简要分析三相桥式电路的基础上,针对传统电流内环采用单PI控制时难以实现对交流信号无静差跟踪且难以抑制网侧电压谐波污染等问题,分别设计采用了引入电压前馈的多重QPR控制策略与重复控制抑制网侧电流谐波并提升整机效率,给出了详细的理论分析与参数设计方案。为进一步验证文中控制策略的有效性,构建了完整的仿真模型与样机平台。结果表明:设计采用的控制策略性能良好,有效降低了网侧谐波污染,便于数字实现,且系统动态性能良好,具有较强的工程指导意义。With the fast development of communications,electric vehicle(EV)charging station and computerindustry,the demand for safe and reliable operation of power supply system is becoming more and more urgent. Onthe basis of the working principle analysis of three-phase PWM grid rectifier,the traditional PI control strategy canonly realize tracking DC signal with no difference,but it has major drawbacks in AC signal and is hard to restrain thegrid current harmonic pollution. PI repetitive compound control and multi-QPR harmonic controllers in the currentinner loop were adopted to effectively reduce the harmonic pollution and improve the whole efficiency,theoreticalanalysis was detailed and design were given out. To test and verify the feasibility of the control strategy,completesimulation model and experimental platform were further built. The experimental results show that the design and thecontrol strategy can effectively improve the system performance,the input current THD get improved significantly,the control strategy is simple and easy realized in the digital control,provides an important reference for the design ofPWM grid-connected rectifier.

关 键 词：并网整流器 准比例谐振 重复控制 谐波抑制 单位功率因数 

分 类 号：TM315[电气工程—电机]