In this paper, we propose sampled-data output feedback controllers for nonlinear systems with time-varying measurement and input delays. A state prediction is generated by chains of saturated high-gain observers with switching error-correction terms and the state prediction is used to stabilize the system with saturated controls. The observers reconstruct the unmeasurable states at dierent delayed time-instants, which partition the maximal variation interval of the time-varying delays. The density of these delayed time instant depend both on the magnitude of the delays and the growth rate of the nonlinearities. Our sampled-data feedback controllers are obtained as zero-order discretizations of continuous time controllers.

Sampled-data output feedback controllers for nonlinear systems with time-varying measurement and control delays / Battilotti, Stefano. - 53:2(2020), pp. 3614-3619. (Intervento presentato al convegno 20th IFAC World Congress tenutosi a Berlin; Germany) [10.1016/j.ifacol.2020.12.2042].

Sampled-data output feedback controllers for nonlinear systems with time-varying measurement and control delays

Stefano Battilotti
2020

Abstract

In this paper, we propose sampled-data output feedback controllers for nonlinear systems with time-varying measurement and input delays. A state prediction is generated by chains of saturated high-gain observers with switching error-correction terms and the state prediction is used to stabilize the system with saturated controls. The observers reconstruct the unmeasurable states at dierent delayed time-instants, which partition the maximal variation interval of the time-varying delays. The density of these delayed time instant depend both on the magnitude of the delays and the growth rate of the nonlinearities. Our sampled-data feedback controllers are obtained as zero-order discretizations of continuous time controllers.
2020
20th IFAC World Congress
Delay systems; time-varying measurement and input delays; dynamic state predictor; continuous-time and sampled-data output feedback controllers
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Sampled-data output feedback controllers for nonlinear systems with time-varying measurement and control delays / Battilotti, Stefano. - 53:2(2020), pp. 3614-3619. (Intervento presentato al convegno 20th IFAC World Congress tenutosi a Berlin; Germany) [10.1016/j.ifacol.2020.12.2042].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1392277
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