Dynamic event-triggered distributed guaranteed cost FTC scheme for nonlinear interconnected systems via ADP approach

Highlights：

• The event-triggered distributed FTC problem of uncertain nonlinear interconnected systems subjected to unmatched interconnections and time-varying actuator faults is solved by integrating the ADP approach and the dynamic event-triggered control strategy for the first time.

• A new cost function is introduced to handle the unmatched interconnections and actuator faults simultaneously.

• A new dynamic event-triggered mechanism is established, which has the advantage of enlarging sampling interval. Moreover, the restriction on initial admissible control policy for each auxiliary subsystem is obviated by introducing a robust term into the weight learning law of critic NN.

• Theoretical analysis shows that the adverse effects of actuator faults on the stability can be eliminated and the cost function of overall interconnected system can be guaranteed to have an upper bound.