具有访问约束和数据丢包的网络化系统H_(∞)鲁棒控制  

H-infinity robust control for networked systems with access constraints and packet dropout

作　　者：祝超群[1,2,3] 姚兴启 ZHU Chao-qun;YAO Xing-qi(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)

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

出　　处：《兰州理工大学学报》2024年第5期86-93,共8页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(61863026,61563031);甘肃省科技重大专项(21ZD4GA028)。

摘　　要：针对同时存在访问约束和数据丢包的网络化控制系统,研究了H_(∞)鲁棒控制方法的设计问题.首先,采用Bernoulli随机过程来描述系统的数据丢包过程,并根据介质访问约束的随机访问机制建立了离散时间马尔可夫跳变系统模型;其次,通过Lyapunov稳定性理论和LMI技术导出闭环系统随机稳定的充分条件,并设计了相应的H_(∞)鲁棒控制器,使得闭环系统随机稳定并具有给定的H_(∞)性能;最后,通过仿真算例验证了所提控制方案的正确性和有效性.In this paper,the design problem of H-infinity robust control is investigated for networked systems with access constraints and packet dropout.Firstly,the Bernoulli random process is utilized to describe the packet loss process of the networked system,and a discrete-time Markov jump system model is established according to the random-access mechanism of medium access constraints.Secondly,sufficient conditions for stochastic stability of the closed-loop system are derived by using Lyapunov stability theory and LMI technology.Correspondingly,H-infinity robust controller is designed to render the closed-loop system stochastic stability with the given H-infinity performance.Finally,an example is given to verify the correctness and effectiveness of the proposed control method.

关 键 词：网络化控制系统 介质访问约束 数据丢包 H_∞鲁棒控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]