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Energies 2018, 11(1), 123; https://doi.org/10.3390/en11010123

Application of Predictive Feedforward Compensator to Microalgae Production in a Raceway Reactor: A Simulation Study

1
Departamento de Informática y Automática, ETSII, UNED, 28040 Madrid, Spain
2
Departamento de Informática, University of Almería, CIESOL-ceiA3, 04120 Almería, Spain
3
Departamento de Ingeniería, University of Almería, CIESOL-ceiA3, 04120 Almería, Spain
*
Author to whom correspondence should be addressed.
Received: 24 November 2017 / Revised: 22 December 2017 / Accepted: 2 January 2018 / Published: 4 January 2018
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Abstract

In this work, the evaluation of a predictive feedforward compensator is provided in order to highlight its most important advantages and drawbacks. The analyzed technique has been applied to microalgae production process in a raceway photobioreactor. The evaluation of the analyzed disturbance rejection schemes were performed through simulation, considering a nonlinear process model, whereas all controllers were designed using linear model approximations resulting in a realistic evaluation scenario. The predictive feedforward disturbance compensator was coupled with two feedback control techniques, PID (Proportional-Integral-Derivative) and MPC (Model Predictive Control) that are widely used in industrial practice. Moreover, the classical feedforward approach has been used for the purpose of comparison. The performance of the tested technique is evaluated with different indexes that include control performance measurements as well as biomass production performance. The application of the analyzed compensator to microalgae production process allows us to improve the average photosynthesis rate about 6% simultaneously reducing the energy usage about 4%. View Full-Text
Keywords: disturbance compensation; feedforward control; process control; PID; MPC disturbance compensation; feedforward control; process control; PID; MPC
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Pawłowski, A.; Guzmán, J.L.; Berenguel, M.; Acíen, F.G.; Dormido, S. Application of Predictive Feedforward Compensator to Microalgae Production in a Raceway Reactor: A Simulation Study. Energies 2018, 11, 123.

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