Event-triggered Intermittent Control for Uncertain Nonlinear Systems

The event-triggered intermittent control strat-egy is presented for studying semiglobal practical finite time stability (SPFTS) of nonlinear system possessing norm-bounded uncertainty. Due to the influence of uncertainty and triggered conditions, additional constant terms are added to differential inequalities,resulting in SPFTS. Based on Lyapunov stability theory, the proposed event-triggered controller, and triggered conditions, sufficient conditions for realizing SPFTS of the system are derived, while also excluding Zeno behavior. Eventually, for demonstrating the effectiveness of the developed method, a simple 2-dimensional uncertain nonlinear system is presented. Additionally, the impact of triggered parameters is verified through this simple example. When r
1
is taken as 0.1 and r
2
changes between 0 and 0.1, the event triggering ratio changes significantly. Therefore,the triggered parameter r
2
can be used to adjust the number of triggers, effectively verifying the theoretical method.