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 共查询到18条相似文献,搜索用时 31 毫秒
1.
一类线性切换系统能控性和能达性的充要条件   总被引:9,自引:0,他引:9  
给出一类线性切换系统能控制,能达性的充分必要条件,此类系统的特征是具有相同的系统矩阵和不同的输入矩阵。  相似文献   

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线性定常系统的δ-算子描述──能控性与能稳性*   总被引:3,自引:1,他引:3       下载免费PDF全文
本文讨论了δ-算子描述下的线性定常系统的能控性与能稳性问题。研究结果表明:虽然两种描述(即传统的q-算子描述和本文讨论的δ-算子描述)方法下的能控性定义及判据形式上并无二致,然而在高速采样的条件下,两种描述方法下的系统的能控度与能稳度呈现出完全相反的特性,一般而言,δ-算子描述方法更加适合高速采样情形。  相似文献   

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一类混合动态系统的能控性和能观性研究   总被引:5,自引:0,他引:5       下载免费PDF全文
针对一类混合动态系统--周期型线性切换系统,给出系统能控性、能观性的充分必要条件,并通过例子加以验证.  相似文献   

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一类混合动态系统的能控性和能观性研究   总被引:3,自引:0,他引:3       下载免费PDF全文
针对一类混合动态系统———周期型线性切换系统, 给出系统能控性、能观性的充分必要条件, 并通过例子加以验证.  相似文献   

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扩展时间事件图的能达性与能控序列   总被引:4,自引:0,他引:4  
利用图论方法在双子结构中研究扩展时间事件图的某些问题,获得了能达性的一个充分必要条件和基于能达性的标准结构。在此基础上,把监控理论中的能控序列的分量分为本质不同的3类,进而得到能控序列的简化求解方法。  相似文献   

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本文讨论了δ-算子描述下的线性定常系统的能控性与能稳性问题.研究结果表明:虽然两种描述(即传统的q-算子描述和本文讨论的δ-算子描述)方法下的能控性定义及判据形式上并无二致,然而在高速采样的条件下,两种描述方法下的系统的能控度与能稳度呈现出完全相反的特性,一般而言,δ-算子描述方法更加适合高速采样情形.  相似文献   

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线性时变广义系统的能控性与能观性问题   总被引:2,自引:0,他引:2       下载免费PDF全文
张雪峰  张庆灵 《自动化学报》2009,35(9):1249-1253
讨论了线性时变系统和线性时变广义系统的两个基本问题, 得到了两种判定时变系统能控性与能观性的必要条件, 该判定条件只依赖于系统矩阵A(t)和输入矩阵B(t), 不必计算系统的系统状态转移矩阵, 使得判别时变系统能控性与能观性易于实现. 说明了本文结论是线性定常系统相应结论的自然扩展. 对进一步深入研究时变系统和时变广义系统具有实际启发作用.  相似文献   

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周期性系统的能控性理论   总被引:1,自引:0,他引:1  
郭戈 《控制与决策》2004,19(4):468-470
主要探讨周期性系统(包括连续和离散两种情形)的能控性问题,对文献中有关周期为To的连续周期性系统的能控性结论进行了完善,推导出系统能控等价于单周期(0,To)内能控的结论,并将这些结论直接推广到离散周期性系统;然后讨论了离散前后周期性系统能控性保持不变的可能性,证明在采用不等间距采样方式时,离散前后周期性系统的能控性保持不变。  相似文献   

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利用D.L.Russel关于“能稳性导致能控性”的论断,研究Petrow sky系统的能控性,首先取线性反馈控制,得到线性反馈Petrow sky系统的能量的指数衰减,从而由D.L.Russel的“能稳性导致能控性”的论断得到能控性.其次取非线性反馈控制,得到Petrow sky系统的一些能量估计,但是不能得到指数能稳.  相似文献   

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This paper studies the construction of switching sequences for reachability realization of switched impulsive control systems. An approach is proposed to design switching sequences so that the reachable subspace of switched impulsive control systems is expressed in terms of the reachable state sets of the designed switching sequences. For a class of switched impulsive control systems, it is proved that a single switching sequence can be designed with its reachable state set coinciding with the reachable subspace. Periodic switching sequences are also constructed in this paper for the reachability realization problem. The results present a new way to exploit the switching mechanism to achieve the reachability and controllability of switched impulsive control systems. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   

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A relationship between the local controllability of the general model of two-dimensional linear systems and its local reachability is considered. Sufficient conditions are established under which the local controllability of the general model implies its local reachability.  相似文献   

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Several canonical forms are developed for linear, constant, single-input, single-output systems. These canonical forms correspond to the system properties of Controllability, Observability, Reachability, and Constructability and are applicable to the case of continuous systems in which time has been discretized and to the case of linear sequential machines.  相似文献   

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The concepts of reachability and controllability do not coincide but reflect a fundamental difference between the dynamical characteristics of different classes of multi-variable systems. This difference is discussed in relation to discrete-lime linear dynamical systems and is illustrated by a simple numerical example.  相似文献   

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The concepts of reachability and controllability do not coincide but reflect a fundamental difference between the dynamical characteristics of different classes of multi-variable systems. This difference is discussed in relation to discrete-time linear dynamical systems and is illustrated by a simple numerical example.  相似文献   

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In this paper, several different concepts of controllability are investigated for a class of linear singular systems which system parameters are piecewise constant. Necessary and sufficient geometric criteria for C‐controllability and R‐controllability of such systems are established, respectively. These conditions can be easily transformed into algebraic form. By applying the principle of duality, C‐observability is discussed as well. Furthermore, the intrinsic relationship between these results and existing results are also discussed. Then, a novel necessary, and sufficient criterion for C‐controllability of linear time‐invariant singular systems is derived as a byproduct.  相似文献   

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本文讨论了能控(观)广义系统集的开性和稠密性,并从能控(观)正则系统集的拓扑结构出发,讨论了相应的广义系统集的连通性,得到了较好的结果,从而将有关正则系统的结果推广到了广义系统。  相似文献   

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