引用本文:张先明, 吴敏.线性多时滞不确定离散时间线性系统的时滞相关H控制[J].控制理论与应用,2006,23(6):918~922.[点击复制]
ZHANG Xian-ming, WU Min.Delay-dependent H-infinity control for linear discrete-time uncertain systems with multiple unknown delays[J].Control Theory and Technology,2006,23(6):918~922.[点击复制]
线性多时滞不确定离散时间线性系统的时滞相关H控制
Delay-dependent H-infinity control for linear discrete-time uncertain systems with multiple unknown delays
摘要点击 1191  全文点击 1226  投稿时间:2004-08-27  修订日期:2006-02-27
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DOI编号  
  2006,23(6):918-922
中文关键词  离散时间线性系统  时滞相关  H控制  线性矩阵不等式
英文关键词  discrete-time linear system  delay-dependent  H-infinity control  linear matrix inequality
基金项目  国家博士点基金资助项目(20050533015); 国家杰出青年科学基金资助项目(60425310); 国家自然科学基金资助项目(60574014).
作者单位
张先明, 吴敏 中南大学信息科学与工程学院, 湖南长沙410083
中南大学数学科学与计算技术学院, 湖南长沙410083 
中文摘要
      讨论了线性多时滞不确定离散时间线性系统的时滞相关H控制问题. 首先, 建立了一个基于二次型项的有限和不等式. 然后, 利用这一不等式, 采用Lyapunov-Krasovskii泛函方法, 获得了系统不仅内部稳定而且具有给定的H性能的时滞相关条件, 同时以LMI的形式给出了无记忆H控制器的设计方法. 最后, 数值例子说明了本文方法的有效性.
英文摘要
      The delay-dependent H-infinity control of linear discrete-time uncertain systems with unknown delays is discussed via memoryless state feedback. Firstly, an inequality for finite sums of quadratic terms is established. Based on a linear matrix inequality (LMI), a new delay-dependent condition is then derived by employing Lyapunov-Krasovskii functional method, which can ensure that the resulting closed-loop system is asymptotically stable with a prescribed Hinfinity performance. Moreover, the suitable H-infinity controller is designed in light of the feasibility of the obtained LMI. Finally, a numerical example is given to illustrate the effectiveness of the proposed approach.