earticle

영어

The design of robust guaranteed cost nonlinear controller is studied for a class of timedelay nonlinear systems with norm-bound time-varying uncertainties. By means of Lyapunov functional and linear matrix inequality (LMIs) technique, a sufficient condition of H∞ robust stabilization which satisfies guaranteed cost index is obtained for the systems. Furthermore, the state feedback nonlinear controller of the systems is given in terms of the feasible solutions of LMIs. Finally, an illustrative example shows the effectiveness of the proposed method.