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

Abstract : 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.
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https://hal.archives-ouvertes.fr/hal-02448635
Contributor : Noureddine Lebaz <>
Submitted on : Wednesday, June 10, 2020 - 2:48:10 PM
Last modification on : Saturday, June 13, 2020 - 3:04:23 AM

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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, Elsevier, 2020, 87, pp.17-26. ⟨10.1016/j.jprocont.2019.12.012⟩. ⟨hal-02448635⟩

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