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arXiv · 2006.06992

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

Vincent Andrieu·Emilie Gagnière·Elodie Chabanon·Lucas Brivadis·Emilie Gagniere·Noureddine Lebaz·Ulysse Serres
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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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Vincent Andrieu, Emilie Gagnière, Elodie Chabanon, Lucas Brivadis, Emilie Gagniere, Noureddine Lebaz, Ulysse Serres. 2020-06-12. New dynamical observer for a batch crystallization process based on solute concentration. https://doi.org/10.1016/j.jprocont.2019.12.012

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