基于Backstepping变换的SHAPF滑模控制方法  

A Sliding Mode Control Method for SHAPF Based on Backstepping Transform

作　　者：陆海强 卢俊杰 包伟峰 宗西举[2] LU Hai-qiang;LU Jun-jie;BAO Wei-feng;ZONG Xi-ju(Jiaxing Hengchuang Electric Power Equipment Co.,Ltd.,Jiaxing 314000,China;不详)

机构地区：[1]嘉兴市恒创电力设备有限公司,浙江嘉兴314000 [2]济南大学,自动化与电气工程学院,山东济南250022

出　　处：《电力电子技术》2020年第8期67-70,共4页Power Electronics

摘　　要：由于有源电力滤波器(APF)的谐波分量的检测复杂并且存在电流畸变谐波,基于Backstepping的方法提出了一种应用于并联型混合APF(SHAPF)的滑模控制方法。首先在三相静止坐标系中建立SHAPF的数学模型,然后变换到d,q坐标系下设计控制器。控制系统分为电流环和电压环,分别进行控制,电流环通过使李雅普诺夫函数的导数始终为负求得电流控制律,电压环采用滑模变结构控制方法进行控制,从而使直流侧电压能够保持平稳,有效降低了APF部分的容量,并且使得直流侧电压在负载发生变化时,仍可以保持平稳,有较好的鲁棒性,最后利用Matlab/Simulink进行了仿真,并在实验平台上验证了该算法有良好的稳态以及动态补偿效果。Due to the complexity of detecting harmonic components of active power filter(APF)and the existence of current distortion harmonics,a sliding mode control method for shunt hybrid APF(SHAPF)based on Backstepping method is proposed.Firstly,the mathematical model of SHAPF is established in the three-phase stationary coordinate system,and then the controller is designed in the d,q coordinate system.The control system is divided into current loop and voltage loop,respectively.The current loop obtains the current control law by making the derivative of Lyapunov function always negative.The voltage loop is controlled by sliding mode variable structure control method.The DC side voltage is enable to be stability,effectively reduce the capacity of the APF part,and in the secondary resistance load cases,makes the DC side voltage can still remain stable,has good robustness,finally using the Matlab/Simulink simulation,this algorithm is verified on the experimental platform has good steady-state and dynamic compensation effect.

关 键 词：并联型混合有源电力滤波器 滑模控制 鲁棒性 

分 类 号：TN713[电子电信—电路与系统]