一种非线性网络串级控制系统的控制器设计  

Controller Design for a Class of Nonlinear Networked Cascade Control Systems

作　　者：袁文荣 杜昭平[1] YUAN Wen-rong;DU Zhao-ping(College of Electronic and Information Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China)

机构地区：[1]江苏科技大学电子信息学院

出　　处：《控制工程》2018年第10期1876-1881,共6页Control Engineering of China

基　　金：国家自然科学基金(61304249);国家自然科学基金(61374063)

摘　　要：非线性是系统中普遍存在的现象,对于非线性控制系统的研究是很有必要的。针对非线性网络串级控制系统,提出一种新的控制器的设计方法。首先建立一个网络串级控制系统的模型,将副被控对象看作一个特殊非线性系统-Lurie系统,研究其副回路存在网络诱导时延时的系统稳定性问题,然后利用Lyapunov-Krasovskii的相关理论给出系统稳定的充分条件和设计相应的控制器,最后,通过数值例子来说明所提出的方法的可行性与有效性。The nonlinearity of the systems is a universal phenomenon, so it is imperative for us to learn the nonlinear systems. A new controller design method is proposed for the nonlinear cascade control systems. Firstly, we need to make a model of networked cascade control systems, problem of the stability of the networked cascade control system with its secondary plant being a special class of nonlinear systems--Lurie system is studied in this paper. Considering a network-induced delay in the secondary loop of networked cascade control systems, then a controller design method and a sufficient condition for this system are obtained by using Lyapunov-Krasovskii method. Finally, a numerical example is given to illustrate the feasibility and effectiveness of the proposed method above.

关 键 词：网络串级控制系统 LURIE系统 线性矩阵不等式 稳定性 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]