摘要
考虑具有时滞的不确定非线性关联大系统的鲁棒控制问题.假设不确定时变参数为半线性或非线性系统的有界输出,通过对时变不确定参数设计自适应律,从而对不确定参数进行估计.利用线性矩阵不等式技术和自适应参数估计方法,设计出鲁棒自适应控制器,从而保证闭环系统渐近稳定.建立了可由线性矩阵不等式表示的镇定条件.仿真示例说明该方法是有效的.
Robust control design is considered for time-delay nonlinear systems with time variant uncertainties. Supposing that time variant uncertainties are the bounded output of quasilinear or nonlinear systems, it is shown that bounded uncertainties from an exo-system can be estimated as a globally stabilizing robust control. The feedback control with adaptation to uncertain parameters is given. Stabilization conditions in the form of linear matrix inequality (LMI) are established. An example illustrates the effectiveness of the result.
出处
《控制与决策》
EI
CSCD
北大核心
2004年第6期687-690,共4页
Control and Decision
基金
国家自然科学基金资助项目(69974028)
陕西省自然科学基金资助项目(2003A15).
关键词
关联大系统
自适应控制
线性矩阵不等式
时变参数
Adaptive control systems
Feedback control
Interconnection networks
Large scale systems
Lyapunov methods
Riccati equations
Robustness (control systems)
Time varying control systems
