Decentralized robust fault-tolerant control for a class uncertain large-scale interconnected systems

This paper deals with the problem of decentralized robust fault-tolerant controller design for class uncertain large-scale interconnected systems. The system under consideration involves parameter uncertainties. The purpose of this problem is to design the local feedback controllers such that, for all admissible uncertainties as well as sensor failures or actuator failures, the system remains globally stable. The sufficient condition is given for decentralized robust fault-tolerant controller against sensor failure, and the design procedure of decentralized robust fault-tolerant controller is presented. Then, the case of actuator failure is discussed. Finally, an illustrative example and simulation results are given to demonstrate the effectiveness of the proposed method.