Event-Triggered Control for Discrete-Time Systems Using a Positive Systems Approach

Frederic Mazenc (1, 2) , Michael Malisoff (3) , Corina Barbalata (3) , Zhong-Ping Jiang (4)

1 L2S - Laboratoire des signaux et systèmes
2 DISCO - Dynamical Interconnected Systems in COmplex Environments
3 LSU - Louisiana State University
4 NYU Tandon School of Engineering

We provide an output feedback eventtriggered controller for discrete-time linear systems. We make novel use of positive systems, interval observers, an event-triggered state estimator, and triggering times that are computed from estimator values. This provides a discrete-time analog of our recent positive systems approach for continuous-time systems. A key novel ingredient in our discrete-time event triggers is their use of vectors of absolute values, instead of the usual Euclidean norm. We illustrate the benefits of our method using a model for event-triggered BlueROV2 underwater vehicles.

Mots clés: stabilization; event-triggered

Domaines: Automatique

Frederic Mazenc, Michael Malisoff, Corina Barbalata, Zhong-Ping Jiang. Event-Triggered Control for Discrete-Time Systems Using a Positive Systems Approach. IEEE Control Systems Letters, 2022, ⟨10.1109/lcsys.2021.3134866⟩. ⟨hal-03711631⟩