A robust asymptotic observer for batch processes with single biogas measurement

Denis D. Dochain (1) , Alain Rapaport (2)

1 UCL - Université Catholique de Louvain = Catholic University of Louvain
2 MISTEA - Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie

In this paper we propose an observer for a dynamical system for which the boundary of its domain is not observable, and trajectories converge to this boundary. The proposed case study, a bioreactor in batch operating conditions with a single microbial reaction and gas production, is standard and largely encountered in practical situations. We show also how to extend this observer to obtain an observer in higher dimension that is robust with respect to unbiased noise.

Mots clés: state observer; observability; biological systems

Domaines: Automatique; Biotechnologies

Denis D. Dochain, Alain Rapaport. A robust asymptotic observer for batch processes with single biogas measurement. 2018. ⟨hal-01700457⟩