Adaptive fault tolerant control for a class of uncertain fractional-order systems based on disturbance observer

In this paper, a class of fractional-order nonlinear systems are considered in the presence of actuator faults. A novel fault tolerant control scheme based on disturbance observer has been presented, where the actuator faults are considered as the system disturbance and can be approximated by the proposed disturbance observer. The developed fault tolerant control guarantees the convergence of the closed-loop system and the output tracking performance. Finally, a simulation example is presented to verify the effectiveness of the new method.