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Robust nonlinear extended prediction self-adaptive control (NEPSAC) of continuous bioreactors

Abhishek Dutta (UGent) , Robain De Keyser (UGent) , Abhishek Dutta (UGent) and Ingmar Nopens (UGent)
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Abstract
A nonlinear predictive control strategy (NEPSAC) is formulated for a continuous bioreactor characterized by severe non-linearity and parameter time-variance, with the control objective being to regulate the fermenter operation near the optimum productivity. Robustness towards the unpredictable time-variance, which comes from cell-mass growth, is guaranteed by disturbance filter design. The dilution rate and feed substrate concentration are considered as manipulated inputs, while the state variables are the biomass, substrate and product concentrations. Results obtained with robust NEPSAC are presented and compared with those obtained with other model predictive control and various linearization based strategies.
Keywords
predictive control, linearisation techniques, robust control, self-adjusting systems, nonlinear control systems, fermentation, filtering theory, control nonlinearities, bioreactors

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Citation

Please use this url to cite or link to this publication:

Chicago
Dutta, Abhishek, Robain De Keyser, Abhishek Dutta, and Ingmar Nopens. 2012. “Robust Nonlinear Extended Prediction Self-adaptive Control (NEPSAC) of Continuous Bioreactors.” In 2012 20th Mediterranean Conference on Control & Automation (MED 2012), 658–664. Piscataway, NJ, USA: IEEE.
APA
Dutta, Abhishek, De Keyser, R., Dutta, A., & Nopens, I. (2012). Robust nonlinear extended prediction self-adaptive control (NEPSAC) of continuous bioreactors. 2012 20th Mediterranean Conference on Control & Automation (MED 2012) (pp. 658–664). Presented at the 20the Mediterranean conference on Control and Automation (MED 2012), Piscataway, NJ, USA: IEEE.
Vancouver
1.
Dutta A, De Keyser R, Dutta A, Nopens I. Robust nonlinear extended prediction self-adaptive control (NEPSAC) of continuous bioreactors. 2012 20th Mediterranean Conference on Control & Automation (MED 2012). Piscataway, NJ, USA: IEEE; 2012. p. 658–64.
MLA
Dutta, Abhishek, Robain De Keyser, Abhishek Dutta, et al. “Robust Nonlinear Extended Prediction Self-adaptive Control (NEPSAC) of Continuous Bioreactors.” 2012 20th Mediterranean Conference on Control & Automation (MED 2012). Piscataway, NJ, USA: IEEE, 2012. 658–664. Print.
@inproceedings{2966052,
  abstract     = {A nonlinear predictive control strategy (NEPSAC) is formulated for a continuous bioreactor characterized by severe non-linearity and parameter time-variance, with the control objective being to regulate the fermenter operation near the optimum productivity. Robustness towards the unpredictable time-variance, which comes from cell-mass growth, is guaranteed by disturbance filter design. The dilution rate and feed substrate concentration are considered as manipulated inputs, while the state variables are the biomass, substrate and product concentrations. Results obtained with robust NEPSAC are presented and compared with those obtained with other model predictive control and various linearization based strategies.},
  articleno    = {ThA3.2},
  author       = {Dutta, Abhishek and De Keyser, Robain and Dutta, Abhishek and Nopens, Ingmar},
  booktitle    = {2012 20th Mediterranean Conference on Control \& Automation (MED 2012)},
  isbn         = {9781467325318},
  keyword      = {predictive control,linearisation techniques,robust control,self-adjusting systems,nonlinear control systems,fermentation,filtering theory,control nonlinearities,bioreactors},
  language     = {eng},
  location     = {Barcelona, Spain},
  pages        = {ThA3.2:658--ThA3.2:664},
  publisher    = {IEEE},
  title        = {Robust nonlinear extended prediction self-adaptive control (NEPSAC) of continuous bioreactors},
  url          = {http://dx.doi.org/10.1109/MED.2012.6265713},
  year         = {2012},
}

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