延时补偿的APF改进预测无差拍重复控制  

Improved predictive deadbeat repetitive control for APF with delay compensation

作　　者：宋炜博 陈宇航 SONG Weibo;CHEN Yuhang(No.1 Oil Production Plant,Xinjiang Oilfield Company,Karamay 834000,China;School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China)

机构地区：[1]新疆油田公司采油一厂,新疆克拉玛依834000 [2]东北电力大学电气工程学院,吉林吉林132012

出　　处：《电气应用》2023年第9期82-90,I0007,共10页Electrotechnical Application

基　　金：国家电网公司总部科技项目(5108-202299258A-1-0-ZB)。

摘　　要：为进一步提升有源电力滤波器(Active Power Filter,APF)性能,提出一种考虑延时补偿的APF预测无差拍重复控制算法。首先,根据奇数次谐波进行dq坐标变换后为偶次频率分量的特点,通过计算谐波周期的最小公倍数实现快速的指令电流周期预测。同时,采用延时信号消除算法(Delay Signal Elimination,DSE)与低通滤波器(Low Pass Filter,LPF)相结合提取基波分量,有效提高了指令电流提取效率。然后,提出通过固定延时后启动AD采样的方法降低无差拍控制下采样前端延时对系统的影响。进而,引入重复控制,并给出了考虑鲁棒性约束下重复控制参数选取方法。最后,通过MATLAB仿真和实际物理实验验证了所提改进控制算法的正确性和有效性。To further improve the performance of active power filter(APF),an APF predictive deadbeat repetitive control algorithm considering delay compensation is proposed.First,according to the characteristic of even frequency component after the dq coordinate transformation of odd harmonic,the command current cycle prediction is realized quickly by calculating the least common multiple of the harmonic cycle.At the same time,the delay signal elimination(DSE)algorithm combined with a low pass filter(LPF)to extract the fundamental component,which effectively improves the efficiency of command current extraction.Then,a method of starting AD sampling after a fixed delay is proposed to reduce the impact of deadbeat control down-sampling front-end delay on the system.Furthermore,repetitive control is introduced,and a parameter selection method of repetitive control under consideration of robust constraints is given.Finally,the correctness and effectiveness of the proposed improved control algorithm are verified by MATLAB simulation and practical physics experiments.

关 键 词：有源电力滤波器 快速指令电流提取 延时补偿 预测无差拍控制 重复控制 

分 类 号：TM761[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]