Design of Estimator-Based Sliding-Mode Output-Feedback Controllers for Discrete-Time Systems

被引：44
|
作者：
Zhang, Jinhui [1 ]
Feng, Gang [2 ,3 ]
Xia, Yuanqing [4 ]
机构：
[1] Beijing Univ Chem Technol, Coll Informat Sci & Technol, Beijing 100029, Peoples R China
[2] City Univ Hong Kong, Dept Mech & Biomed Engn, Kowloon, Hong Kong, Peoples R China
[3] King Abdulaziz Univ, Jeddah 22254, Saudi Arabia
[4] Beijing Inst Technol, Sch Automat, Beijing 100081, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Discrete quasi-sliding mode; static output feedback; uniform ultimate boundedness; VARIABLE-STRUCTURE CONTROL;
D O I：
10.1109/TIE.2013.2274413
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper considers the output-feedback sliding-mode-control (SMC) problem for a class of discrete-time systems with matched disturbances. A novel approach to the design of the sliding surface is proposed, which is based on a novel result on discrete-time singular systems. For the state variables which cannot be obtained from output variables directly, a simple estimator is proposed to estimate them. Then, the estimator-based robust SMC law is also proposed by using a new reaching law. It is further shown that the closed-loop control system is uniformly ultimately bounded. Furthermore, a memory-based sliding-mode controller with a modified estimator is also proposed. Finally, numerical examples are given to illustrate the effectiveness of the proposed design methods.
引用
收藏
页码：2432 / 2440
页数：9
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