引用本文:熊军林, 张庆灵.结构不确定离散系统的最优非脆弱保成本控制[J].控制理论与应用,2004,21(2):279~282.[点击复制]
XIONG Jun-lin, ZHANG Qing-ling.Optimal non-fragile guaranteed cost control for linear discrete-time systems with structured uncertainty[J].Control Theory and Technology,2004,21(2):279~282.[点击复制]
结构不确定离散系统的最优非脆弱保成本控制
Optimal non-fragile guaranteed cost control for linear discrete-time systems with structured uncertainty
摘要点击 1259  全文点击 1209  投稿时间:2002-09-03  修订日期:2003-05-26
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DOI编号  
  2004,21(2):279-282
中文关键词  线性离散系统  保成本控制  线性矩阵不等式  非脆弱的
英文关键词  linear discrete-time systems  guaranteed cost control  linear matrix inequalities  non-fragile
基金项目  辽宁省科技基金项目(2001401041); 辽宁省普通高校学科带头人基金项目(124210).
作者单位
熊军林, 张庆灵 东北大学 系统科学研究所,辽宁 沈阳 110004 
中文摘要
      讨论了一类不确定线性离散系统的最优非脆弱保成本控制问题.考虑的系统和状态反馈控制器均具有时变的结构化的不确定性.基于线性矩阵不等式的方法,给出了存在和设计非脆弱保成本控制律的一个充分条件,以及在使二次成本函数上界最小意义下,最优非脆弱保成本控制律的凸优化设计方法.并用数值例子说明该方法降低了成本函数上界的保守性.
英文摘要
      The problem of the optimal non-fragile guaranteed cost control for uncertain linear discrete-time systems is considered. Both the system and the state feedback controller under consideration are assumed to have the time - varying structured uncertainties. Based on the linear matrix inequality technology, a sufficient condition is established to guarantee the existence of the desired non - fragile controllers and can be used to design such controllers. Two convex optimization algorithms are also proposed to select the optimal non - fragile controller in the sense of minimizing the upper bound of the quadratic performance index. A numerical example is given to show that the conservation of the upper bound is reduced by using the developed approach.