Abstract

An output feedback periodic event-triggered control (PETC) strategy is developed for nonstrict-feedback switched nonlinear systems (SNSs) in this paper. In the proposed scheme, only sampled system output is utilized. To estimate the unmeasured system states, a common state observer, which is independent of the switching signal, is constructed for all subsystems. To save communication resources, an event-triggered controller is designed by only using states at event-triggering instants and the developed PETC scheme only needs to monitor the designed discrete-time event-triggering mechanism (ETM) at sampling instants intermittently. To guarantee that the closed-loop system (CLS) is global asymptotically stable (GAS), a proper common Lyapunov function (CLF) is selected and the range of the sampling period is derived. Finally, the proposed scheme’s effectiveness is verified by simulation results.

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