东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (11): 1546-1549.DOI: -

• 论著 • 上一篇    下一篇

多模型自适应PID解耦控制器

李磊;毛志忠;刘芳;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-11-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2007AA041401,2007AA04Z194);;

Nonlinear adaptive PID decoupling controller based on multiple models

Li, Lei (1); Mao, Zhi-Zhong (1); Liu, Fang (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-11-15 Published:2013-06-20
  • Contact: Li, L.
  • About author:-
  • Supported by:
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摘要： 对于一类非线性、强耦合、离散时间系统,提出了基于多模型的多变量自适应PID解耦控制策略,取消了系统平衡点参数已知的条件.控制策略包括一个完全自适应PID解耦控制器,一个参数重赋值自适应PID解耦控制器,多个参数固定PID解耦控制器和一个切换机制.理论分析表明,通过合理地选择切换函数,自适应PID控制器保证系统BIBO稳定,参数重赋值自适应PID控制器和参数固定PID控制器改善系统性能.

关键词: 多模型, 神经网络, 自适应, PID, 解耦

Abstract: For a class of nonlinear discrete-time systems with strong coupling, a multivariable adaptive PID decoupling control strategy based on multiple models is proposed without the balance point parameters of the systems as given conditions. It consists of a fully adaptive PID decoupling controller, a parameter-reassigned adaptive PID decoupling controller and a set of parameter-fixed PID decoupling controllers, and a switching mechanism. Theoretical analysis showed that among the three different kinds of decoupling controllers the first one can guarantee the bounded-input-output(BIBO) stability for the closed-loop-system and the rest used to improve the system performance via choosing the switching functions rationally.

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