Optimal control of decentralized dynamic output feedback for large-scale systems with time delays

For a class of large- scale systems with time delays in subsystem interconnection, Optimal design of reliable guaranteed cost stabilization with continual gain sensor faults is presented. Based on the analysis of sensor faults of continue gain faults, sufficient conditions for the existence of the decentralized dynamic output feedback of reliable guaranteed cost are given. The design can guarantee asymptotic stability and minimizes the upper bound of a given quadratic cost function whether sensor failures happen or not.