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Event-triggered Output-feedback Control for Networked Switched Positive Systems with Asynchronous Switching

Jiao Liu*, Yake Yang, Hongchao Li, and Yanli Geng
International Journal of Control, Automation, and Systems, vol. 19, no. 9, pp.3101-3110, 2021

Abstract : The issue of asynchronously output-feedback control for a class of discrete-time networked switched positive systems in the presence of network-induced time delays is discussed in this paper. Due to the limited communication energy or network bandwidth, an event-triggered control strategy capable of achieving the goal of reducing the resources and the communication load is adopted. Different from the existing results, by taking full advantage of positive property of output, a mode-dependent linear weighting triggering condition is given in the paper, which can deal with the positive stabilization problem efficiently. Furthermore, an asynchronously event-triggered output-feedback controller is designed to ensure the closed loop system remain positive and exponentially stable by virtue of multiple copositive type Lyapunov-Krasovskii functional incorporated with linear programming method. Finally, a numerical example is provided to verify the results obtained.

Keyword : Asynchronous switching, event-triggered scheme, network-induced time delays, networked switched positive systems, output-feedback control.

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