CAJ | 학술논문

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。
침대전동기차충전참운행과정중산생적해파문제，이용일충병련혼합형유원전력려파기래치리해파。해병련혼합형유원전력려파기결합료주입전로，재려파과정중，유원전력려파기기불승수기파전압야불승수기파전류，종이감소료유원전력려파기적용량，강저료치리성본；재려파기공제과정중，채용개진형규칙채양법진행PWM조제，진일보제고료조제정도。이용MATLAB연건탑건방진모형진행방진，병재상해모전동기차충전참진행시험，려파기투입전후적방진결과화시험수거표명，투입려파기후해파전류총기변솔대대강저，체도료국표규정적병망요구。
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 fil-ter and lowers treatment costs. In filter control process, an improved regular sampling method is used for PWM modu-lation to further improve modulation accuracy. Finally, a simulation model is built using MATLAB, and the experi-ments 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.