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Title: Disturbance-observer-based robust control for time delay uncertain systems
Authors: Chen, Mou
Chen, Wen-Hua
Keywords: Uncertain system
Time delay
Disturbance observer
Robust control
Lyapunov method
LMI
Issue Date: 2010
Publisher: © Institute of Control, Robotics and Systems Engineers (ICROS), Korean Institute of Electrical Engineers (KIEE) and Springer
Citation: CHEN, M. and CHEN, W-H., 2010. Disturbance-observer-based robust control for time delay uncertain systems. International Journal of Control, Automation and Systems, 8 (2), pp. 445 - 453
Abstract: A robust control scheme is proposed for a class of systems with uncertainty and time delay based on disturbance observer technique. A disturbance observer is developed to estimate the disturbance generated by an exogenous system, and the design parameters of the disturbance observer are determined by solving linear matrix inequalities (LMIs). Based on the output of the disturbance observer, a robust control scheme is proposed for the time delay uncertain system. The disturbance-observer-based robust controller is combined of two parts: one is a linear feedback controller designed using LMIs and the other is a compensatory controller designed with the output of the disturbance observer. By choosing an appropriate Lyapunov function candidate, the stability of the closed-loop system is proved. Finally, simulation example is presented to illustrate the effectiveness of the proposed control scheme.
Description: This article was published in the serial, International Journal of Control, Automation and Systems [© ICROS, KIEE and Springer]. The definitive version is available at: http://link.springer.com/article/10.1007%2Fs12555-010-0233-5?LI=true#
Version: Accepted for publication
DOI: 10.1007/s12555-010-0233-5
URI: https://dspace.lboro.ac.uk/2134/11161
Publisher Link: http://link.springer.com/article/10.1007%2Fs12555-010-0233-5?LI=true#
ISSN: 1598-6446
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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