抄録
This paper investigates robust H∞ control problem for affine nonlinear systems with uncertainty. A sufficient condition is given for that the nonlinear system is robust exponential stable and the L2 gain is less than one under the presence of gain bounded perturbation. Using this condition such a state feedback controller is obtained that the closed loop system is robust H∞ sub-optimal. The results given in this paper include the result obtained in linear system.
