共查询到16条相似文献,搜索用时 140 毫秒
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本文针对一类离散非方广义系统模型,引入乘子得到其逆等矩阵模型,并进一步判断该类系统模型的完全能控性、能达能控性、完全能观性、能达能观性以及之间的对偶关系。 相似文献
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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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感应电动机系统的能控性与能观测性分析 总被引:7,自引:0,他引:7
分析了感应电动机系统的能控性与能观测性。结果表明系统是弱能控与弱能观的。而且,采用非线性状态反馈解耦控制和非线性坐标变换后的局部闭环解耦线性系统是能控与能观的。 相似文献
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本文针对一般线性切换系统,严格定义了系统的能控性、能达性和能控集、能达集,导出了能控性的一个必要条件,给出了三维单输入双切换系统能控性的充分必要条件,并指出现有文献中有关结论的一个错误. 相似文献
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Dragan Nešić 《Mathematics of Control, Signals, and Systems (MCSS)》1999,12(3):270-294
Null controllability for a class of parallelly connected discrete-time polynomial systems is considered. We prove for this
class of systems that a necessary and sufficient condition for null controllability of the parallel connection is that all
its subsystems are null controllable. Consequently, the controllability test splits into a number of easy-to-check tests for
the subsystems. The test for complete controllability is also presented and it is subtly different from the null controllability
test. A similar statement is then given for complete controllability of a class of parallelly connected continuous-time polynomial
systems. The result is somewhat unexpected when compared with the classical linear systems result. We identify the phenomenon
which shows the difference between the linear and nonlinear cases.
Date received: January 22, 1997. Date revised: January 14, 1998. 相似文献
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一类混杂系统的建模与控制器设计 总被引:1,自引:0,他引:1
研究一类离散事件系统和连接时间系统相混合的混杂系统建模与控制器设计问题。首先用不同的模型方法建立混杂系统的层次模型,分析连续时间系统状态空间的离散化和系统的可控性;在此基础上利用DES监控理论设计控制器,以规范系统的时域和逻辑行为。最后的示例表明了层次模型与控制算法的有效性。 相似文献
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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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本文利用多项式理论,讨论线性单输入广义系统在状态反馈作用下可镇定、极点配置和可控性判别等问题。 相似文献
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Based on some practical engineering problems arising from process control and space-structure control, this paper studies a class of hybrid dynamic systems in which N plants are controlled by a central controller in sharing time manner, where the plants are described by differential equations and the controller works according to the mechanism of discrete events. An event feedback strategy is suggested to be a scheduling policy such that one and only one plant among N plants is chosen to be controlled at any time. Some conditions of asymptotical and exponential stability are then given and an exponential upper bound of states norm is also estimated for the event feedback scheduling strategy. An algorithm based on event feedback strategy is presented to determine the control laws of the plants to meet the given performance. An example follows to illustrate the application and effect of the results. 相似文献
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一类连续广义Markov跳变系统的镇定性研究 总被引:1,自引:0,他引:1
研究转移概率部分未知情况下的连续时间广义Markov跳变系统的稳定性和镇定性.所研究的系统涵盖了转移概率完全已知和完全未知两种特殊情况,具有更广泛的意义.首先,基于线性矩阵不等式方法,获得了使系统正则、无脉冲、随机稳定的充分条件;然后,设计了基于线性矩阵不等式条件的状态反馈控制器,使闭环系统正则、无脉冲、随机稳定;最后,通过仿真算例验证了所提出方法的有效性. 相似文献