APF直流侧纹波电压分析及新PI控制策略研究  

Research on APF DC Side Ripple Voltage Based on a New PI Control Strategy

作　　者：吴婷[1] 杨剑锋[1] 苗青[1] 石青[1] 

机构地区：[1]兰州交通大学,自动化与电气工程学院,甘肃兰州730070

出　　处：《电力电子技术》2015年第5期90-92,共3页Power Electronics

基　　金：甘肃省教育厅科研项目(2014A-045)~~

摘　　要：针对有源电力滤波器(APF)在应用中直流侧电容值的选择问题,给出了一种基于直流侧纹波电压的分析方法,该方法可将纹波波动率控制在设定的范围内。对直流侧电压进行适当控制,使得在特定的电容容量条件下,电压纹波波动率达到最小值,以取得良好的补偿效果。为了控制APF直流侧纹波,提出了一种采用直流侧输出电压偏差平方值的模糊PI控制方法,同时采用空间矢量脉宽调制(SVPWM)。仿真和实验结果证明,该方法能减小直流侧电压纹波,平稳直流侧输出电压。For the problem of DC side capacitor value choice in the application of the active power filter （APF）, the article presents a method based on the analysis of the ripple voltage in DC side, this method can grain the undulation control rate within the range of the setting, take measures to control DC voltage, and under the condition of specific capacitance,the voltage fluctuation rate could reach the minimum,which is in order to obtain good compensation effect. In order to control the APF DC side ripple,this paper presents a fuzzy PI control method using DC side output voltage deviation squared value, meanwhile using space vector pulse width modulation（SVPWM）.The simulation and experimental results show that using this method can reduce the DC voltage ripple, and achieve steady DC output voltage.

关 键 词：有源电力滤波器 直流侧纹波电压 空间矢量脉宽调制 

分 类 号：TN713.8[电子电信—电路与系统]