Dynamic output feedback variable structure control for the output stabilization of MIMO uncertain plants with actuator and sensor hysteresis nonlinearities

This paper addresses the measured output zeroing problem of a square plant containing non-smooth nonlinearities in actuator and sensor devices. An "extended" hysteresis model has been proposed, and a robust sliding mode controller, based on the output of a reduced order observer, has been synthesized; such control law ensures both the measured output zeroing and the boundedness of the unavailable states. Theoretical results have been validated by simulation.