Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (4): 886-891.

• 制导、导航与控制 • 上一篇    下一篇

不确定变时滞系统的模糊静态输出反馈保性能可靠控制

蔡俊伟, 胡寿松   

  1. 南京航空航天大学自动化学院, 江苏, 南京, 210016
  • 收稿日期:2008-01-25 修回日期:2008-06-02 出版日期:2009-04-20 发布日期:2010-01-03
  • 作者简介:蔡俊伟(1980- ),男,博士研究生,主要研究方向为可靠控制,故障诊断.E-mail:cjwnuaa@tom.com
  • 基金资助:
    国家自然科学基金重点项目(60234010);航空科学基金(05E52031)资助课题

Fuzzy static output feedback guaranteed cost reliable control for uncertain time-varying delay systems

CAI Jun-wei, HU Shou-song   

  1. Coll. of Automation Engineering, Nanjing Univ. of Aeronautics & Astronautics, Nanjing 210016, China
  • Received:2008-01-25 Revised:2008-06-02 Online:2009-04-20 Published:2010-01-03

摘要: 针对一类含有执行器故障的变时滞不确定性T-S模糊模型,采用静态输出反馈的并行分布补偿器(PDC)结构,研究了其模糊静态输出反馈保性能可靠控制律的设计问题。通过定义一类时滞相关Lyapunov-Kra-sovskii函数,基于线性矩阵不等式(LMI),给出了模糊静态输出反馈保性能可靠控制器存在的条件,所设计的控制器可保证在正常和执行器故障情况下,闭环系统都能渐近稳定,并且正常保性能上界小于故障保性能上界。仿真实验验证了该设计方法的有效性。

Abstract: For a class of uncertain time-varying delay Takagi-Sugeno(T-S) fuzzy systems with actuator failures,the problem of designing a fuzzy static output feedback guaranteed cost reliable controller is considered via the parallel-distributed compensation(PDC) approach.By defining a delay dependent Lyapunov-Krasovskii function,the sufficient condition for the existence of the fuzzy static output feedback guaranteed cost reliable controller is presented in terms of linear matrix inequality(LMI),which not only guarantees the stability of the close-loop system for the normal and actuator fault cases,but also provides the upper bounds on the guaranteed cost function for the normal case is less than the upper bounds on the guaranteed cost function for actuator fault cases.The simulation results demonstrate the effectiveness of the proposed method.

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