共查询到18条相似文献,搜索用时 109 毫秒
1.
2.
线性广义时滞系统的状态反馈H∞控制 总被引:2,自引:0,他引:2
首先利用线性矩阵不等式(LMI)方法,给出线性广义时滞系统稳定的一个充分条件;然后讨论广义时滞系统的H_∞状态反馈控制,给出控制器存在的充分条件,同时给出控制器的设计.控制器可由矩阵不等式解得。 相似文献
3.
广义时滞系统的时滞相关型H∞控制 总被引:1,自引:0,他引:1
研究了广义时滞系统的时滞相关型H∞控制问题.利用一个新构造的增广一离散化李亚普诺夫泛函并结合自由权矩阵方法,给出了使得系统正则、无脉冲、稳定且具有给定H∞性能界的时滞相关型有界实引理(BRL).在所得BRL基础上,得到了系统H∞状态反馈控制律的一个直接的设计方法.所给结果均以严格线性矩阵不等式( LMI)表示.数值实例表明了结果的有效性和较小保守性. 相似文献
4.
讨论了线性多时滞不确定离散时间线性系统的时滞相关H_∞控制问题.首先,建立了一个基于二次型项的有限和不等式.然后,利用这一不等式,采用Lyapunov-Krasovskii泛函方法,获得了系统不仅内部稳定而且具有给定的H_∞性能的时滞相关条件,同时以LMI的形式给出了无记忆H_∞控制器的设计方法.最后,数值例子说明了本文方法的有效性. 相似文献
5.
针对控制器存在短暂失效的情形,研究一类时变时滞离散系统在时滞状态反馈控制下的H_∞控制器失效时间分析问题.本文的目标是寻求控制器正常工作时间与失效时间的比率应满足的条件以确保系统指数镇定且具有加权l_2增益.为此,基于切换的思想,所考虑的系统被转化为一个仅含有两个子系统的切换系统,其中一个子系统是控制器失效时的不稳定子系统,另一个是控制器未失效时的稳定子系统.通过使用多Lyapunov函数及平均驻留时间方法,给出问题可解的充分条件及时滞状态反馈H_∞切换控制器的设计方案.仿真算例表明了所得结果的有效性. 相似文献
6.
7.
8.
9.
10.
11.
12.
13.
14.
This paper focuses on the design problem of a memoryless state feedback robust H-infinity controller for a class of uncertain neutral systems. By using a newly established integral inequality, a new delay-dependent bounded real lemma for such systems is derived without involving a fixed model transformation. Furthermore, new delay-dependent sufficient conditions for the existence of robust H-infinity controllers are presented in terms of nonlinear matrix inequalities. A design procedure involving an iterative algorithm is also proposed to design such controllers. Numerical examples are given to demonstrate the less conservatism of the proposed method. 相似文献
15.
This paper focuses on the design problem of a memoryless state feedback robust H-infinity controller for a class of uncertain neutral systems. By using a newly established integral inequality, a new delay-dependent bounded real lemma for such systems is derived without involving a fixed model transformation. Furthermore, new delay-dependent sufficient conditions for the existence of robust H-infinity controllers are presented in terms of nonlinear matrix inequalities. A design procedure involving an iterative algorithm is also proposed to design such controllers. Numerical examples are given to demonstrate the less conservatism of the proposed method. 相似文献
16.
17.
The delay-dependent H-infinity analysis and H-infinity control problems for continuous time-delay systems are studied. By introducing an equality with some free weighting matrices, an improved criterion of delay-dependent stability with H-infinity performance for such systems is presented, and a criterion of existence and some design methods of
delay-dependent H-infinity controller for such systems are proposed in term of a set of matrix inequalities, which is solved efficiently by an iterative algorithm. Further, the corresponding results for the delay-dependent robust H-infinity analysis and robust H-infinity control problems for continuous time-delay uncertain systems are given. Finally, two numerical examples are given to illustrate the efficiency of the proposed method by comparing with the other existing results. 相似文献
18.
Decentralized H-infinity state feedback control for discrete-time singular large-scale systems 总被引:1,自引:0,他引:1
The decentralized H-infinity control problem for discrete-time singular large-scale systems is considered. Based on the bounded real lemma of discrete-time singular systems, a sufficient condition for the existence of decentralized H-infinity controller for discrete-time singular large-scale systems is presented in terms of the solvability to a certain system of linear matrix inequalities by linear matrix inequality (LMI) approach, and the feasible solutions to the system of LMIs provide a parameterized representation of a set of decentralized H-infinity controller. The given example shows the application of the method. 相似文献