2019/07/15 by Cui-Hua Zhang, Cuihua Zhang, Guang-Hong Yang +1 · 2 citations
Engineering · Computer Science · #Adaptive Control of Nonlinear Systems #Stability and Control of Uncertain Systems #Adaptive Dynamic Programming Control
paper · doi:10.1109/tac.2019.2928767
This paper focuses on the problem of global finite-time stabilization for a class of uncertain nonlinear systems with event-triggered inputs. The existing event-based design methods can only partially compensate for the effects of the event-triggered errors and cannot completely counteract them to achieve finite-time control. For this reason, a new method about event triggering mechanism and event-triggered controller codesign is presented based on the idea of backstepping design and the sign function technique. It is proved that the event-triggered control system is the Zeno-free and the newly proposed control strategy ensures the global finite-time stability of the closed-loop systems via Lyapunov analyses and finite-time stability theory, which improves the existing results of only boundedness or asymptotic stability. Finally, two examples are performed to demonstrate the validity of the proposed strategy.