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

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 نشر من قبل Noureddine Lebaz
 تاريخ النشر 2020
  مجال البحث
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 تأليف Vincent Andrieu




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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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