Exponential stability analysis and impulsive tracking control of uncertain time-delayed systems

Exponential stability analysis and impulsive tracking control of uncertain time-delayed systems
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不确定时滞系统的指数稳定性分析与脉冲跟踪控制

DOI:
10.1007/s10898-011-9669-2
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发表时间:
2012-02
影响因子:
1.8
通讯作者:
Xu, Honglei
Xu, Honglei
中科院分区:
数学3区
文献类型:
--
作者:
Chen, Yuanqiang;Xu, Honglei

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本文研究了不确定时滞系统的指数稳定性和跟踪控制问题。首先,利用李雅普诺夫泛函方法和代数矩阵不等式技巧,建立了一类不确定时滞系统指数稳定的充分条件。此外,跟踪控制问题进行了研究,其中不确定线性时滞系统用于跟踪参考系统。对于系统状态可测和不可测的情形,分别给出了跟踪控制问题可解的充分条件。当系统状态可测时,我们设计了一个脉冲控制律来实现跟踪性能。当状态信息不能直接从测量中获得时,将使用基于测量输出的脉冲控制律。最后,数值例子来说明我们的结果的有效性和实用性。
In this paper, we study exponential stability and tracking control problems for uncertain time-delayed systems. First, sufficient conditions of exponential stability for a class of uncertain time-delayed systems are established by employing Lyapunov functional methods and algebraic matrix inequality techniques. Furthermore, tracking control problems are investigated in which an uncertain linear time-delayed system is used to track the reference system. Sufficient conditions for solvability of tracking control problems are obtained for the cases that the system state is measurable and non-measurable, respectively. When the state is measurable, we design an impulsive control law to achieve the tracking performance. When the state information is not directly available from measurement, an impulsive control law based on the measured output will be used. Finally, numerical examples are presented to illustrate the effectiveness and usefulness of our results.
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影响因子: --
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