具有通信约束的网络化系统动态输出反馈控制  

Dynamic output feedback control of networked system with communication constraints

作　　者：祝超群[1,2,3] 李留洋 金辉 ZHU Chao-qun;LI Liu-yang;JIN Hui(College of Electrical and Information Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China;Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou Univ. of Tech., Lanzhou 730050, China;National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou Univ. of Tech., Lanzhou 730050, China;Information Engineering College, Shenyang University of Chemical Technology, Shenyang 110142, China)

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [2]兰州理工大学甘肃省工业过程先进控制重点实验室,甘肃兰州730050 [3]兰州理工大学电气与控制工程国家级实验教学示范中心,甘肃兰州730050 [4]沈阳化工大学信息工程学院,辽宁沈阳110142

出　　处：《兰州理工大学学报》2021年第1期83-90,共8页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(61563031,61863026)。

摘　　要：针对一类存在访问约束和时变时延的网络化控制系统,研究了其中的动态输出反馈控制器的设计问题.考虑到介质访问约束服从Markov分布和时变时延的上界小于一个采样周期的情况,将网络化控制系统建模为一类具有不确定性的离散时间Markov跳变系统.根据Lyapunov稳定性理论与状态增广方法,给出了闭环网络化控制系统渐近稳定的充分条件,并设计了动态输出反馈控制器,使得闭环系统渐近稳定.最后通过仿真验证了所提方法的有效性.In this paper,the design of dynamic output feedback controller in networked control systems is studied for a class of networked control systems with access constraints and time-varying delays.Considering that the media access constraint obeys Markov distribution and the upper bound of time-varying delay is less than one sampling period,the networked control system should be built into a kind of uncertain time-discrete Markov jump system in modeling of the system.According to the Lyapunov stability theory and the state augmentation method,the sufficient conditions for the asymptotic stability of the closed-loop networked control system are therefore given,and a dynamic output feedback controller may be designed to make the closed-loop system asymptotically stable.Finally,a numerical example is provided to demonstrate the correctness and effectiveness of the proposed modeling method.

关 键 词：网络化控制系统 介质访问约束 时变时延 动态输出反馈 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]