Control robusto del pH en un fotobiorreactor raceway

  1. Hoyo Sánchez, Ángeles 1
  2. Guzmán Sánchez, José Luis 1
  3. Moreno Úbeda, José Carlos 1
  4. Baños Torrico, Alfonso 2
  1. 1 Universidad de Almería
    info

    Universidad de Almería

    Almería, España

    ROR https://ror.org/003d3xx08

  2. 2 Universidad de Murcia
    info

    Universidad de Murcia

    Murcia, España

    ROR https://ror.org/03p3aeb86

Revista:
Revista iberoamericana de automática e informática industrial ( RIAI )

ISSN: 1697-7920

Any de publicació: 2022

Volum: 19

Número: 3

Pàgines: 274-283

Tipus: Article

DOI: 10.4995/RIAI.2022.16731 DIALNET GOOGLE SCHOLAR lock_openAccés obert editor

Altres publicacions en: Revista iberoamericana de automática e informática industrial ( RIAI )

Resum

This work presents a first approach to the robust control of pH in a raceway photobioreactor for the cultivation of microalgae. In this type of process, pH is the most critical variable to control, having a direct relationship with the productivity of the system. The dynamics of the pH has a strongly non-linear character, being affected by numerous factors such as the contribution of CO2 to the culture medium or the performance of photosynthesis by the microalgae. This non-linearity generates a great source of uncertainty in the process even when the system is controlled around the desired operating point. Therefore, in this article we have proceeded to model the system with parametric uncertainty covering the typical working ranges of pH, and later a robust controller with QFT is designed to achieve certain robust performance and stability requirements. The resulting control algorithm has been evaluated in simulation and in real tests against different working conditions and at different operating points, obtaining satisfactory results. 

Informació de finançament

Finançadors

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