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不确定时滞系统α-鲁棒输出反馈控制 被引量：1

a-robust output-feedback control for uncertain time-delay system
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摘要 为提高动态系统的性能,提出了一种基于线性矩阵不等式技术的鲁棒输出反馈控制器设计方法.该方法针对一类具有范数有界不确定性的线性时变时滞系统,利用状态变换和Lyapunov稳定性定理,得到该控制器存在的一个充分条件, 继而用正交补空间方法和Schur补引理将该充分条件转化为易于实现的线性矩阵不等式(LMI)形式,并给出控制器设计方法.结果表明,用该方法设计的输出反馈控制器使闭环系统α-一致渐近稳定且满足H∞性能指标。并且利用Matlab工具箱可以简洁快速地获取控制器各增益矩阵,该设计方法的可行性和优越性通过一个仿真实例得到了充分的证实. To enhance the performance of dynamic systems, a design method of robust output-feedback controller based on the linear matrix inequality technique was proposed. The method focused on aclass of linear time-varying time-delay systems with norm-bounded uncertainty, and yielded a sufficient condition for the existence of the controller by using state transformation and Lyapunov stability theorem. The theory of orthogonal complement space and Schur complement lemma were used to translate this sufficient condition into linear matrix inequality form and obtained the method for designing the controller. Results show that with this design method, the output-feedback controller guarantees the closed-loop system to be a-uniform asymptotically stable and has H. performance, and that the gain matrices of the controller can be obtained easily by using Matlab tool box. The validity and the advantage of this design method are illustrated by a benchmark example.
作者 周武能 苏宏业 褚健
机构地区 工业控制技术国家重点实验室
出处 《浙江大学学报（工学版）》 EI CAS CSCD 北大核心 2005年第9期1329-1333,1373,共6页 Journal of Zhejiang University：Engineering Science
基金 国家杰出青年基金资助项目(60025308)中国高等学校优秀青年教师教学科研奖励基金项目国家自然科学基金资助项目(10371106).
关键词 时滞系统 鲁棒控制 α-稳定 线性矩阵不等式 time-delay system robust control s-stable linear matrix inequality
分类号 TP13 [自动化与计算机技术—控制理论与控制工程]
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参考文献10

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共引文献4

同被引文献16

  • 1李春涛,谭永红.基于状态观测器的迟滞非线性系统输出反馈控制[J].控制与决策,2004,19(9):967-972. 被引量：4
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浙江大学学报（工学版）
2005年 第9期

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