New dynamical observer for a batch crystallization process based on solute concentration

In this paper a new observer is introduced to estimate the Crystal Size Distribution (CSD) only from the measurements of the solute concentration, temperature and a model of the growth rate. No model of the nucleation rate is needed. This approach is based on the use of a Kazantzis-Kravaris/Luenberger observer which exponentially estimates functionals of the CSD. Then, the full state is estimated by means of a Tikhonov regularization procedure. Numerical simulations are provided. Our approach relies on an infinite-dimensional observer, contrarily to the usual moment based observers.

Mots clés

Solute concentration Tikhonov regularization Crystal Size Distribution Observers Crystallization

Domaines

Automatique / Robotique Génie des procédés Optimisation et contrôle [math.OC]

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https://hal.science/hal-02448635

Soumis le : mercredi 10 juin 2020-14:48:10

Dernière modification le : lundi 22 avril 2024-10:57:41

Dates et versions

hal-02448635 , version 1 (10-06-2020)

Identifiants

HAL Id : hal-02448635 , version 1
DOI : 10.1016/j.jprocont.2019.12.012

Citer

Lucas Brivadis, Vincent Andrieu, Elodie Chabanon, Emilie Gagniere, Noureddine Lebaz, et al.. New dynamical observer for a batch crystallization process based on solute concentration. Journal of Process Control, 2020, 87, pp.17-26. ⟨10.1016/j.jprocont.2019.12.012⟩. ⟨hal-02448635⟩

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