Abstract: For a class of networked control system with delay and data-packet dropout in consideration of both parameter uncertainties and external disturbance with limited energy, the problem of robust H}x, guaranteed cost fault tolerant control for networked control system with actuator failures was discussed using dynamic output feedback control strategy. A type of Lyapunov-Krasovakii functional was proposed which contains some triple-integral terms, and a delay-depcndcntrobust H.guaranteed cost integrality sufficient condition against actuator failures was derived, meanwhile, the optimization design method of controller was given via solving several linear matrix inequalities. Finally, an example was used to illustrate the effectiveness and the feasibility of proposed approach. In the proof the model tranformation is not used and the informations of delay are fully used in piecewise processing, so the results possess less conservativeness.

Key words: Networked control system(NCS) ,Time-varying delay,且control, Guaranteed cost comtrol, Dynamic output feedback