ABSTRACT
This paper investigates the problem of adaptive output feedback tracking for uncertain switched nonlinear systems, under arbitrary switching. First, an adaptive output feedback controller is designed, which ensures the boundedness of all the closed-loop signals. Then, a novel adaptive-based robust output feedback control is proposed to drive the tracking error to zero, in which the bound of disturbances is not required to be known in advance. Both control algorithms are based on the common Lyapunov function method, without any restrictions on dwell time. To evaluate the performance of the proposed output feedback control schemes, a numerical example is presented and discussed.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
Elizabeth Noghreian
Hamid Reza Koofigar
Hamid Reza Koofigarreceived the B.Sc. in electronic engineering in 2003, the M.Sc. degree in control engineering in 2005 and his Ph.D. in electrical engineering in 2009, from Isfahan University of Technology, Iran. He is now with the Department of Electrical Engineering, University of Isfahan as an associate professor. His current research interests include robust control, adaptive nonlinear control, hybrid dynamical systems, and robotics.