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Zbl 1003.93007
Xiong, Yi; Saif, Mehrdad
Sliding mode observer for nonlinear uncertain systems. (English)
[J] IEEE Trans. Autom. Control 46, No.12, 2012-2017 (2001). ISSN 0018-9286

A smooth nonlinear uncertain control system is considered. It is assumed that the uncertainties are representable through unknown input terms of the system. Based on suitable assumptions, the original system is decomposed into two interconnected subsystems (one of these subsystems is free of uncertainties). A nonlinear sliding mode observer is proposed to provide the state estimates for the other subsystem (in which the unknown inputs only appear). Some simulation results corresponding to a three-phase current motor model are also presented.
[M.I.Krastanov (Sofia)]

MSC 2000:: *93B12 Variable structure systems
93C10 Nonlinear control systems

Keywords: sliding mode observers; uncertain systems

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