Table of Contents Author Guidelines Submit a Manuscript
Discrete Dynamics in Nature and Society
Volume 2016, Article ID 4269725, 9 pages
http://dx.doi.org/10.1155/2016/4269725
Research Article

Composite Adaptive Antidisturbance Control for Discrete-Time Switched System

1School of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China
2School of Engineering, Qufu Normal University, Rizhao, Shandong 276826, China
3School of Information Science and Engineering, Qufu Normal University, Rizhao, Shandong 276826, China

Received 24 December 2015; Accepted 21 March 2016

Academic Editor: Juan R. Torregrosa

Copyright © 2016 Haibin Sun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel composite adaptive antidisturbance controller is developed for a class of discrete-time switched system. First, two composite adaptive observers are proposed to estimate the external disturbances and unknown parameters, respectively. Then, based on the estimation values, a composite adaptive antidisturbance controller is constructed, which can guarantee system has a good antidisturbance performance. A solvable sufficient condition is presented by using linear matrix inequalities (LMIs). Finally, a numerical example is shown to demonstrate the effectiveness of the proposed control approach.