电动汽车充电站的谐波治理方法研究  

Electric Vehicle Charging Stations Harmonic Suppression Method

作　　者：党存禄[1] 吴青峰[1] 李勇[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,兰州730050

出　　处：《电测与仪表》2014年第9期123-128,共6页Electrical Measurement & Instrumentation

基　　金：甘肃省自然科学基金资助项目(1208RJZA151);甘肃省教育厅硕导基金资助项目(1203ZTC025)

摘　　要：针对电动汽车充电站运行过程中产生的谐波问题,利用一种并联混合型有源电力滤波器来治理谐波。该并联混合型有源电力滤波器结合了注入电路,在滤波过程中,有源电力滤波器既不承受基波电压也不承受基波电流,从而减小了有源电力滤波器的容量,降低了治理成本;在滤波器控制过程中,采用改进型规则采样法进行PWM调制,进一步提高了调制精度。利用MATLAB软件搭建仿真模型进行仿真,并在上海某电动汽车充电站进行试验,滤波器投入前后的仿真结果和试验数据表明,投入滤波器后谐波电流总畸变率大大降低,达到了国标规定的并网要求。To solve the problem of harmonics generated during the operation of charging stations for electric car,a parallel hybrid active power filter is used to control harmonics. Combined with injection circuit,the filter does not bear fundamental voltage or fundamental current in the filtering process,thus reduces the capacity of active power filter and lowers treatment costs. In filter control process,an improved regular sampling method is used for PWM modulation to further improve modulation accuracy. Finally,a simulation model is built using MATLAB,and the experiments are conducted in an electric vehicle charging station in Shanghai. Simulation results and experimental data show that the total distortion rate of input harmonic current is greatly lowered after the filter is put into operation,reaching the network requirement of national standard.

关 键 词：电动汽车 充电站 混合型有源电力滤波器 谐波治理 

分 类 号：TM714[电气工程—电力系统及自动化]