摘要
针对具有时变时延的非线性网络化控制系统(NNCS),在离散事件触发的输出通讯机制下,研究了NNCS的保性能控制和H_∞鲁棒控制问题。首先,设计NNCS动态输出反馈控制器以得到闭环系统,利用Lyapunov稳定性方法,给出闭环系统在无扰动情况下渐近稳定和保性能的充分条件;其次,在γ次扰动情况下完成系统的H_∞鲁棒控制问题;然后,针对系统中出现的输出误差、时延、非线性项等因素的影响,采用变量替换法求解出NNCS动态输出反馈控制器;最后应用Matlab仿真验证所提方法的有效性。
For nonlinear networked control systems （NNCS） with time-varying delay,under the output communication mecha- nism of discrete event triggers,this paper deals with robust control problems and guaranteed cost control problems.First of all, NNCS dynamic output feedback controller is designed for the closed-loop system, Using the Lyapunov stability method, some novel criteria for the asymptotic stability of the closed-loop system and guaranteed cost with no disturbance are given;secondly,the ro- bust control problem withfimes disturbance is proved;then in view of the influence of the factors with system output error,time de- layand nonlinear term ere , the NNCS dy-namie output feedback controller is designed by using variable substitution method;Final- ly, a Matlab simulation example illustrates the effectiveness of the method.
作者
张爽
赵立英
白敬
ZHANC Shuang;ZHAO Li-ying;BAI Jing(University of Science and Technology of Beijing,School of Mathematics and Physics,Beijing 100083,China)
出处
《计算技术与自动化》
2018年第3期34-41,共8页
Computing Technology and Automation
基金
国家自然科学基金资助项目(61440058)
关键词
动态输出反馈
事件触发
H∞鲁棒控制
保性能控制
非线性网络化控制系统
dynamic output feedback
event -triggered
Robust control
guaranteed performance control
nonlinear nelworked control systems
