Robust H∞ control for a class of uncertain nonlinear switched systems

This paper focuses on the robust H_∞ control problem for a class of nonlinear switched systems containing neutral uncertainties with average dwell time (ADT). Uncertainties are assumed to be nonlinearly dependent on state and state derivative and allowed to appear in channels of state, control input and disturbance input. The robust H_∞ control problem of the switched system with stabilizable and unstabilizable subsystems is solvable if the stabilizable and unstabilizable subsystems satisfy certain conditions and admissible switching strategy among them. ADT and piecewise Lyapunov function approaches are applied to achieve the control design. A numerical example is provided to illustrate the effectiveness of the proposed results.