基于LADRC的三相四线制并联型有源电力滤波器系统分析  

Analysis of Three-phase Four-wire Shunt Active Power Filter System Based on LADRC

作　　者：周雪松[1] 刘伟[1] 马幼捷[1] 赵健[1] 王大艳[1] 邱云志[1] 

机构地区：[1]天津理工大学天津市复杂系统控制理论及应用重点实验室,天津300384

出　　处：《高电压技术》2016年第4期1290-1299,共10页High Voltage Engineering

摘　　要：为改善三相四线制有源电力滤波器控制器的动态响应速度和性能,首先建立了一种典型三相四线制并联型有源电力滤波器(SAPF)的数学模型;然后设计了1阶线性自抗扰控制器(LADRC)对其进行控制;最后利用经典控制理论在频域对2阶线性扩张状态观测器的收敛性进行了分析;推导了基于1阶线性自抗扰控制器的三相四线制并联型有源电力滤波器系统的抗扰特性和稳定性问题。仿真结果表明,此控制方案优于传统比例–积分–微分控制器,具有良好的跟踪效果和抗扰特性。To improve the dynamic response speed and performance of three-phase four-wire active power filter, firstly, we established a mathematical model of a kind of typical shunt active power filter（SAPF） of three-phase four-wire system. Then we designed one-order linear active disturbance rejection controller（LADRC） to control it. Finally, we used classical control theory to analyze convergence of two-order linear extended state observer in frequency domain and deduce anti-interference characteristics and stability of SAPF of three-phase four-wire system based on LADRC. The simulation results show that this control scheme is superior to the traditional proportional-integral-differential controller, and it has good tracking effect and immunity properties.

关 键 词：三相四线制并联型有源电力滤波器 线性自抗扰控制器 数学模型 线性扩张状态观测器 稳定性 抗扰特性分析 

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]