共查询到19条相似文献,搜索用时 109 毫秒
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本文研究了一类具有饱和执行器的不确定时滞系统的鲁棒镇定问题,所考虑的系统具有时变未知有界的不确定参数和状态滞后,基于系统的线性矩阵不等式给出了系统可鲁棒镇定的判据以及鲁棒无记忆状态反馈控制规律。 相似文献
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具有多状态滞后的不确定时变时滞系统的鲁棒镇定 总被引:10,自引:2,他引:10
首先给出了具有多状态滞后的时变时滞系统渐近稳定的代数Riccati不等式形式的判据,
并基于此给出了确定性时变时滞系统的镇定方法.然后给出了具有有界参数不确定性的多状态滞
后时变时滞系统的镇定方法.文中的结论非常简单,只需解一个代数Riccati方程.最后给出一个算
例. 相似文献
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The delay-dependent robust stabilization problem for a class of uncertain linear timedelay systems containing saturating actuator is considered in this paper. The uncertain time-delay systems under consideration are described by state differential equations with time-varying unknown-but-bounded uncertain parameters and delayed state. The delay is assumed to be constant bounded but unknown. New robust stability criteria and a sufficient condition for the existence of memoryless robust stabilizing control law are derived. The results depend on the size of the delay and are given in terms of several linear matrix inequalities (LMIs). A numerical example is presented to illustrate the obtained results. 相似文献
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The problems of robust stability and robust stabilization of uncertain linear systems with distributed delay occurring in the state variables are studied in this paper. The essential requirement for the uncertainties is that they are norm-bounded with known bounds. Conditions for the robust stability of distributed time delay systems are given and a design method for the robust stabilizing control law of the uncertain systems is presented. The proposed method is applied to the stabilization of combustion in the chamber of a liquid monopropellant rocket motor. It is found that the combustion can be robustly stabilized when the two parameters pressure exponent γ and maximal time lag r vary in specified intervals, respectively. 相似文献
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针对有输入约束的不确定时延网络控制系统,提出鲁棒模型预测控制方法;其中,将不确定时延建模为范数有界的输入矩阵的不确定性.给出了鲁棒性能指标的上界和系统渐近稳定的充分条件,通过在线求解LMI凸优化问题得到状态反馈控制律.仿真例子验证了该方法的有效性. 相似文献
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不确定时滞系统的无记忆鲁棒控制 总被引:4,自引:1,他引:3
讨论了含有时变时滞以及时变输入控制的
时滞线性系统的鲁棒可镇定性问题,就所有可结构化不确定参数以及所有非结构化不确定参
数两种情形分别得到了系统可由状态反馈控制器镇定的充分条件,并且相应给出了控制器的
设计. 相似文献
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A new design approach to delay‐dependent robust stabilization and robust H∞ control for a class of uncertain time‐delay systems is provided in this paper. The sufficient conditions for delay‐dependent robust stabilization and robust H∞ control are derived based on a new state transformation and given in terms of linear matrix inequalities (LMI). Numerical examples are presented to show that the proposed results can be less conservative and can be used to deal with not only small but also large delay systems. 相似文献
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由Lyapunov和一种Razumikhin型的方法, 讨论了带有时滞状态的不确定Lur’e_Postnikov系统的鲁棒镇定. 证明对带有状态时滞和范数有界扰动的不确定Lur’e_Postnikov系统, 若其系统矩阵满足某个代数Riccati不等式, 则可通过某 (静态 )线性状态反馈或 (动态 )状态反馈使其闭环系统是二次稳定的. 同样, 应用一Razumikhin型方法, 对带有时变时滞的一类不确定非线性系统的能稳定性问题, 也给出一个充分条件. 相似文献
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An LMI-based approach for robust stabilization of uncertain stochastic systems with time-varying delays 总被引:1,自引:0,他引:1
Chien-Yu Lu Jason Sheng-Hong Tsai Gwo-Jia Jong Te-Jen Su 《Automatic Control, IEEE Transactions on》2003,48(2):286-289
Based on the linear matrix inequality method, we introduce the robust stability of uncertain linear stochastic differential delay systems with delay dependence. The parameter uncertainty is norm-bounded and the delays are time varying. We then extend the proposed theory to discuss the robust stabilization of uncertain stochastic differential delay systems. 相似文献