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Composite stratified anti‐disturbance control for a class of MIMO discrete‐time systems with nonlinearity
Author(s) -
Wei Xinjiang,
Chen Nan,
Deng Changhui,
Liu Xiaohua,
Tang Meiqin
Publication year - 2011
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.1709
Subject(s) - control theory (sociology) , disturbance (geology) , nonlinear system , controller (irrigation) , mimo , sliding mode control , a priori and a posteriori , computer science , discrete time and continuous time , control (management) , mathematics , statistics , telecommunications , artificial intelligence , paleontology , channel (broadcasting) , philosophy , physics , epistemology , quantum mechanics , agronomy , biology
SUMMARY Anti‐disturbance control and estimation problem are investigated for nonlinear system subject to multi‐source disturbances. The disturbances classified model is proposed based on the error and noise analysis of priori knowledge. The disturbance observers are constructed separately from the controller design to estimate the disturbance with partial known information. By integrating disturbance‐observer‐based control with discrete‐time sliding‐mode control (DSMC), a novel type of composite stratified anti‐disturbance control scheme is presented for a class of multiple‐input–multiple‐output discrete‐time systems with known and unknown nonlinear dynamics, respectively. Simulations for a flight control system are given to demonstrate the effectiveness of the results compared with the previous schemes. Copyright © 2011 John Wiley & Sons, Ltd.