AN adaptive fault tolerante control in interconnected systems

This work aims at the adaptive fault tolerant control using output feedback. Fault tolerant adaptive control is developed for N-interconnected subsystems with unknown sensors failures. Such sensors failures are characterized by some unknown inputs stuck at some unknown fixed values at unknown time instants. An effective output feedback controller structure is proposed for sensors failures compensation. The FTC scheme has an additive control in the adaptive controller which has an intrinsic robustness in terms of the stability and performance of the estimation sensors failure. This work is an extension of the additive control method presented in to the interconnected subsystems. Numerical and simulation results are provided to demonstrate the effectiveness of the proposed controller.