Integrated Fault Estimation and Fault-tolerant Control for Discrete Lipschitz Nonlinear Systems

A method of integrated fault estimation(FE) and fault-tolerant control(FTC) for discrete nonlinear systems with actuator faults is proposed. Firstly, the observer is designed to get the error equation and the fault-tolerant controller is designed to obtain closed-loop control system. Then consider the coupling of them, an augmented system of system error and state are established. Secondly, the augmentation system can be design by H
_∞
control to realize integrated FE/FTC. Finally, the proposed method is applied to by the flight control system.