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Output feedback variable structure control for a class of uncertain switched systems
Author(s) -
Lian Jie,
Zhao Jun
Publication year - 2009
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.77
Subject(s) - control theory (sociology) , observer (physics) , variable (mathematics) , variable structure control , class (philosophy) , stability (learning theory) , hysteresis , surface (topology) , output feedback , control (management) , computer science , mathematics , sliding mode control , nonlinear system , artificial intelligence , physics , mathematical analysis , geometry , quantum mechanics , machine learning
This paper considers the output feedback variable structure control problem for a class of uncertain switched systems. A single sliding surface is constructed using only output information. Robust stability of the sliding motion restricted to the sliding surface is achieved and complete invariance to the matched and the mismatched uncertainties is guaranteed via a hysteresis switching law based on a reduced order observer. Output feedback variable structure controllers are given to guarantee that the redefined sliding surface is reached in finite time. A numerical example illustrates the effectiveness of the proposed design method. Copyright © 2009 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society