Robust H-infinity output feedback control for general nonlinear systems with structured uncertainty

Abstract

In this paper, the robust H-infinity output feedback control problem for general nonlinear systems with L-2-norm-bounded structured uncertainties is considered. Sufficient conditions for the solvability of robust performance synthesis problems are represented in terms of two Hamilton-Jacobi inequalities with n independent variables. Based on these conditions, a state space characterization of a robust H-infinity output feedback controller solving the considered problem is proposed. An example is provided for illustration.