基于高阶微分器的无模型滑模控制器及其在自动电压调节器中的应用  

Model-free Sliding Mode Controller Based on High-order-differentiator and Its Application in AVR

作　　者：费春国 秦俊杰 李月英 FEI Chunguo;QIN Junjie;LI Yueying(College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China;College of Aeronautics and Astronautics,Tianjin Sino-German University of Applied Sciences,Tianjin 300300,China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津300300 [2]天津中德应用技术大学航空航天学院,天津300300

出　　处：《信息与控制》2022年第3期377-384,共8页Information and Control

基　　金：天津市企业科技特派员项目(19JCTPJC43200)。

摘　　要：为了提高对自动电压调节器(automatic voltage regulator,AVR)系统的控制效果,设计了一种基于高阶微分器(high-order-differentiator,HOD)的无模型滑模控制器,将传统的滑模控制(sliding mode control,SMC)和HOD相结合。在控制过程中,HOD能够通过被控对象的可测量输出准确估计出系统的各阶状态变量,而无需知道被控对象的具体模型和参数。在成功实现对Duffing混沌系统有效控制后,应用无模型滑模控制器对AVR系统进行控制,并与高阶微分反馈控制(high-order-differentiator feedback controller,HODFC),PID粒子群算法(PID particle swarm optimization,PID-PSO)和PID混沌蚁群算法(PID chaotic ant colony optimization,PID-CAS)的结果进行对比。仿真实验表明所提出的无模型滑模控制器具有超调量小、跟踪精度高的特点,同时具有很好的鲁棒性,对噪声干扰有较强的抑制作用。To improve the control effect of the automatic voltage regulator system,a model-free sliding mode controller(SMC)based on a high-order differentiator(HOD)is developed.The traditional SMC is combined with the HOD.The controller does not involve the specific parameters of the system and can effectively use the HOD to accurately estimate the state information of the system during the control process.After successfully achieving effective control of the Duffing chaotic system,the model-free SMC is employed to control the AVR system.The results are compared with those obtained using HODFC,PID particle swarm optimization,and PID chaotic ant colony optimization.The simulation results show that the proposed model-free SMC has a low overshoot,high tracking accuracy,robustness,and strong suppression of noise interference.

关 键 词：高阶微分器 滑模控制 自动电压调节 状态估计 噪声抑制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]