A Noise-Insensitive Reinforcement Learning Control for a Nonlinear Bioreactor

Leighton Leandro Estrada-Rayme, Paul Cardenas-Lizana

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The capacity of the Model-Free Learning Control (MFLC) system is studied in the presence of noise signals for a highly nonlinear bioreactor. The bioreactor is a Multiple-Input Multiple-Output (MIMO) system based in a biochemical and physical model. A methodology is provided for designing the MFLC scheme and optimally selecting their elements and parameters. The scheme is tested for 3 different inputs (step, sinusoidal, and ramp) and it includes exogenous disturbances in the state variables. Noise signals are added to the output variables to model errors in sensor readout and uncertainties of the plant. The results show that the MFLC systems is very robust and insensitive to the presence of noise signal even when it is very high (50%). The presented methodology could be applied to control any nonlinear industrial process.

Original languageEnglish
Title of host publicationProceedings of the 2022 IEEE 29th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665486361
DOIs
StatePublished - 2022
Event29th IEEE International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2022 - Lima, Peru
Duration: 11 Aug 202213 Aug 2022

Publication series

NameProceedings of the 2022 IEEE 29th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2022

Conference

Conference29th IEEE International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2022
Country/TerritoryPeru
CityLima
Period11/08/2213/08/22

Keywords

  • bioreactor
  • component product
  • control
  • CSTR
  • disturbance
  • Klatt-Engell
  • learning
  • model-free
  • noise
  • nonlinear
  • Q-learning
  • reinforcement
  • system
  • temperature

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