[HTML][HTML] Optimal darwinian selection of microorganisms with internal storage

W Djema, T Bayen, O Bernard - Processes, 2022 - mdpi.com
In this paper, we investigate the problem of species separation in minimal time. Droop model
is considered to describe the evolution of two distinct populations of microorganisms that are …

Turnpike features in optimal selection of species represented by quota models

W Djema, L Giraldi, S Maslovskaya, O Bernard - Automatica, 2021 - Elsevier
The paper focuses on a generic optimal control problem (OCP) deriving from the competition
between two microbial populations in continuous cultures. The competition for nutrients is …

Separating two species of microalgae in photobioreactors in minimal time

W Djema, O Bernard, L Giraldi - Journal of Process Control, 2020 - Elsevier
This paper proposes a strategy to separate two strains of microalgae in minimal time. The
control is the dilution rate of the continuous photobioreactor. The microalgae dynamics is …

Optimal control separating two microalgae species competing in a chemostat

W Djema, O Bernard, T Bayen - 2020 59th IEEE Conference on …, 2020 - ieeexplore.ieee.org
In this work, we study the question of selecting in minimal-time a microalgae species of
interest using the Droop model to describe the dynamics of two distinct populations …

A Lipchitz Observer Application in Photobioreactors for Microalgae Cultivation

JLR Magdaleno, M Farza… - 2021 18th …, 2021 - ieeexplore.ieee.org
In this paper we discuss a Lipschitz observer for a nonlinear system, using the Luenberger-
type observer as a basis. The nonlinearities were addressed using linear matrix inequalities …

Turnpike features in optimal selection of species represented by quota models: extended proofs

W Djema, L Giraldi, S Maslovskaya, O Bernard - 2021 - hal.science
The paper focuses on a generic optimal control problem (OCP) deriving from the competition
between two microbial populations in continuous cultures. The competition for nutrients is …

Optimization of Microalgae Selection: Highlighting turnpike features

W Djema, O Bernard, L Giraldi - IFAC-PapersOnLine, 2019 - Elsevier
We consider a simplified dynamical system to represent the competition between two
species of microalgae in a chemostat. The model is derived from the classical Droop model …