摘要
研究一类输入为扇区非线性的不确定动力系统的指数镇定问题 ,在假设系统不确定性满足匹配条件的情况下 ,基于 L yapunov稳定性理论给出了一种连续型的鲁棒指数镇定控制器方案。在模型的部分不确定上界未知时修改了控制器 ,并得出全局渐近收敛的结果。
The problem of exponential stabilization for a class of uncertain systems with sector nonlinear input is discussed. Under the matching condition, a kind of continuous robust controller is presented based on Lyapunov stability theory, which guarantees exponential stability of the closed-loop systems. Moreover, when the upper bounds of some uncertainties are unknown, the control is revised to guarantee globally asymptotical stabilization. A numerical example demonstrates the effectiveness of the proposed method.
出处
《控制与决策》
EI
CSCD
北大核心
2001年第5期545-548,共4页
Control and Decision
基金
国家自然科学基金项目 (197710 66)
陕西省自然科学基金项目 (97CS0 10 1)
关键词
不确定动力系统
指数镇定
扇区非线性
鲁棒性
Closed loop control systems
Computer simulation
Control nonlinearities
Lyapunov methods
Robustness (control systems)
Stabilization
Theorem proving
