共查询到18条相似文献,搜索用时 62 毫秒
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本文研究一类不可观非线性系统的动态输出反馈镇定,基于逼近渐近稳定性的概念,给出了动态输出反馈可镇定的充分条件,本文主要结果的直接推论是零动太逼近渐近稳定的最小相位系统能用动态输出反馈镇定,本文的方法也能处理非最小相位系统。 相似文献
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带有非匹配不确定性非线性系统的线性动态输出反馈镇定 总被引:12,自引:2,他引:10
研究了带有非匹配不确定性的SISO及MIMO仿射和非仿射非线性系统的动态输出反馈镇定问题,在仅要求标称系统为双曲极小相位,以及在对系统不确定部分做较弱限制下,分别为所论系统构造出了输出反馈形式的动态补偿器,它们均使相应的闭环系统为Lyapunov意义下的渐近稳定.所构造的补偿器为线性的,结构简单,易于实现. 相似文献
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MIMO不确定仿射非线性系统输出反馈区域镇定 总被引:1,自引:0,他引:1
研究不确定仿射非线性系统的输出反馈镇定,在允许系统存在某类非匹配不确定性
的情况下,为系统构造出动态输出反馈鲁棒控制器,使相应闭环系统渐近稳定,并给出吸引域
的估计. 相似文献
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研究了通过Riccati方程中矩阵D的选择,以实现由输出反馈u=-Ly来镇定系统的目的,关于上述问题OFSLQ问题有解D,以使相应的Riccati方程存在正定解P,满足∑(A-BB'P)C-,且给出对某个L,有B'P=LC的充要条件. 相似文献
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奇异系统的输出稳定化通过一般状态反馈的可解性 总被引:1,自引:0,他引:1
讨论了奇异系统的输出稳定化问题,得到了在初始值为容许且不保证闭环正则的情形下,通过一般状态反馈求解此问题的充要条件及计算步骤 相似文献
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The robust servomechanism problem (alternatively, output regulation problem) of the class of nonlinear systems in lower triangular form has been extensively studied in recent years. The semi‐global solution was first given by either state feedback or output feedback. The global solution by state feedback was given very recently. However, the global solution by output feedback has long been an open problem. In this paper, we present a set of solvability conditions of the global robust servomechanism problem for this class of nonlinear systems by output feedback. 相似文献
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Daizhan Cheng 《Asian journal of control》2000,2(2):132-139
This paper tackles the problem of stabilization of a class of non‐minimum phase nonlinear systems which have zero dynamics with an eigenvalue zero of multiplicity 2. By adding some new terms, called cross terms, we are able to generalize the concept of the Lyapunov function with a homogeneous derivative along the trajectory, which was introduced in [4], to produce a suitable Lyapunov function. The Lyapunov function assures that the stability of an approximate system, which consists of some lower order terms of a nonlinear system with an eigenvalue zero of multiplicity 2, implies the stability of the whole system. Applying these to non‐minimum phase zero dynamics of nonlinear systems with such a center, a sufficient condition and a design method of state feedback control are obtained for stabilizing the systems. 相似文献
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一类非线性组合大系统的分散输出反馈鲁棒镇定 总被引:2,自引:1,他引:2
研究了不确定非线性子系统经不确定非线性互联而成的组合大系统,给出了其可分散输出反馈鲁棒镇定的充分条件,说明了所得结论的广泛适用性以及相似结构与全息特性的密切相关性. 相似文献