东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (2): 187-190.DOI: -

• 论著 • 上一篇    下一篇

多输入多输出离散系统的输出反馈滑模控制

于驰;王宏伟;宫明龙;   

  1. 东北大学材料与冶金学院;东北大学秦皇岛分校;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-01-17
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金青年基金资助项目(50901015);;

Output feedback sliding mode control for discrete-time MIMO systems

Yu, Chi (1); Wang, Hong-Wei (2); Gong, Ming-Long (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-01-17
  • Contact: Wang, H.-W.
  • About author:-
  • Supported by:
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摘要： 针对一类多输入多输出非匹配不确定离散系统,在状态不完全可测的情况下,设计了输出反馈滑模控制器.首先利用Lyapunov函数方法和线性矩阵不等式技术,给出了滑动模面函数方程,并进行了稳定性证明;其次,为了减弱离散指数趋近律的抖振现象,给出了基于幂次函数趋近律的控制律设计和理论分析过程,最后根据仿真结果验证了该设计方法的可行性和有效性.

关键词: 多输入多输出, 离散系统, 输出反馈, 滑模控制, 线性矩阵不等式

Abstract: For a class of multi-input multi-output (MIMO) uncertain discrete-time systems, of which the states are not fully measured, an improved output feedback sliding mode controller was designed. First, a sliding mode surface function was established by using Lyapunov function method and linear matrix inequality(LMI) technique, with the stability of the sliding mode system proved. Then, a reaching law based on power function was presented to weaken the chattering of the system. Simulation results show the feasibility and effectiveness of the algorithm proposed.

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