J4 ›› 2011, Vol. 38 ›› Issue (1): 142-146+183.doi: 10.3969/j.issn.1001-2400.2011.01.023

• 研究论文 • 上一篇    下一篇

非线性关联大系统的控制器设计

郭岗1,2;牛文生3;马建峰1   

  1. (1. 西安电子科技大学 计算机学院,陕西 西安   710071;
    2. 洛阳师范学院 信息技术学院,河南 洛阳  471022;
    3. 中国航空计算技术研究所,陕西 西安   710068)
  • 收稿日期:2009-12-15 出版日期:2011-02-20 发布日期:2011-04-08
  • 通讯作者: 郭岗
  • 作者简介:郭岗(1972-),男,西安电子科技大学博士研究生,E-mail: guogang@lynu.edu.cn.
  • 基金资助:

    国家部委基金科研资助项目(C0520061364)

Design of the controller for nonlinear interconnected systems

GUO Gang1,2;NIU Wensheng3;MA Jianfeng1
  

  1. (1. School of Computer Science and Technology, Xidian Univ., Xi'an  710071, China;
    2. Academy of Info. Tech., Luoyang Normal Univ., Luoyang  471022, China;
    3. China Aeronautics Computing Tech. Research Inst., Xi'an  710068, China)
  • Received:2009-12-15 Online:2011-02-20 Published:2011-04-08
  • Contact: GUO Gang

摘要:

对一类由Takagi-Sugeno双线性模型描述的带有时变时滞的非线性关联大系统,研究了其分散状态反馈控制问题.根据Lyapunov稳定性分析理论和并行分布补偿算法,导出了闭环关联大系统时滞相关渐进稳定的充分条件,该条件比现有结果具有更小的保守性.设计出了相应的分散模糊控制器,并将其转化成为一个受线性矩阵不等式约束的凸优化问题.

关键词: 模糊控制系统, 时滞系统, 鲁棒控制, 非线性关联大系统, 分散控制, 线性矩阵不等式

Abstract:

The decentralized state feedback control problem is studied for a nonlinear interconnected systems with a time-varying delay in both states and inputs which are composed of a number of Takagi-Sugeno (T-S) fuzzy bilinear subsystems with interconnections. Based on the Lyapunov criterion and the parallel distribution compensation scheme, the delay-dependent stabilization sufficient conditions are derived for the whole close-loop fuzzy interconnected systems, which have less conservativeness than that by the existing methods. The corresponding decentralized fuzzy controller design is converted into a convex optimization problem with linear matrix inequality (LMI) constraints. Finally, a simulation example shows the effectiveness of the proposed approach.

Key words: fuzzy control systems, delay systems, robust control, nonlinear interconnected system, decentralized control, linear matrix inequality