Composite stratified anti‐disturbance control for a class of MIMO discrete‐time systems with nonlinearity |
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| Authors: | Xinjiang Wei Nan Chen Changhui Deng Xiaohua Liu Meiqin Tang |
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| Affiliation: | 1. Department of Mathematics and Information, Ludong University, Yantai 264025, People's Republic of China;2. School of Mechanical Engineering, Southeast University, Nanjing 210096, People's Republic of China;3. School of Information Engineering, Dalian Ocean University, Dalian 116023, People's Republic of China |
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| Abstract: | 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. |
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| Keywords: | composite stratified control disturbance‐observer‐based control discrete‐time sliding‐mode control MIMO systems with nonlinearity |
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