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Disturbance Rejection for Uncertain Discrete-Time Linear Systems Through Event-Triggered Control.
- Source :
- Journal of Control, Automation & Electrical Systems; Feb2022, Vol. 33 Issue 1, p103-114, 12p
- Publication Year :
- 2022
-
Abstract
- This work addresses the problem of disturbance rejection for discrete-time linear uncertain systems through an event-triggered control. Assuming that the disturbances are generated by an exosystem and only the output of the plant is available for measurement, an observer-based event-triggered controller to ensure the robust asymptotic stability and the disturbance rejection in steady-state is proposed. Considering this setup, LMI-based conditions that ensure the perfect asymptotic disturbance rejection are derived and a convex optimization problem is proposed to systematically compute the event-triggering strategy parameters aiming at reducing the control updates. Since the perfect asymptotic rejection of non-constant disturbances degenerates to periodic (i.e. time-triggered) updates of the control signal in steady-state, a practical disturbance rejection mechanism based on a relaxed triggering criterion and a corresponding convex optimization problem is also proposed. Numerical examples illustrate the efficiency of the proposed techniques. [ABSTRACT FROM AUTHOR]
- Subjects :
- LINEAR systems
UNCERTAIN systems
DISCRETE-time systems
Subjects
Details
- Language :
- English
- ISSN :
- 21953880
- Volume :
- 33
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Journal of Control, Automation & Electrical Systems
- Publication Type :
- Academic Journal
- Accession number :
- 154290448
- Full Text :
- https://doi.org/10.1007/s40313-021-00832-8