A simple and efficient feedback control strategy for wastewater denitrification

Cédric Join 1, 2, 3 Jean Bernier 4 Stéphane Mottelet 5 Michel Fliess 3, 6 Sabrina Rechdaoui-Guérin 4 Sam Azimi 4 Vincent Rocher 4
1 CRAN - Centre de Recherche en Automatique de Nancy
2 NON-A - Non-Asymptotic estimation for online systems
CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189, Inria Lille - Nord Europe
3 AL.I.E.N. - ALgèbre pour Identification & Estimation Numériques
4 SIAAP - Direction du Développement et de la Prospective
5 TIMR - Transformation Intégrée de la Matière Renouvelable
6 LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau]
Abstract : Due to severe mathematical modeling and calibration difficulties open-loop feedforward control is mainly employed today for wastewater denitrification, which is a key ecological issue. In order to improve the resulting poor performances a new model-free control setting and its corresponding "intelligent" controller are introduced. The pitfall of regulating two output variables via a single input variable is overcome by introducing also an open-loop knowledge-based control deduced from the plant behavior. Several convincing computer simulations are presented and discussed.
Keywords : wastewater - treatment - treatment biological algebraic estimation techniques knowledge-based control artificial intelligence biofiltration denitrification feedback control design robustness performance intelligent P controllers model-free control
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Conference papers
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Cédric Join, Jean Bernier, Stéphane Mottelet, Michel Fliess, Sabrina Rechdaoui-Guérin, et al.. A simple and efficient feedback control strategy for wastewater denitrification. 20th IFAC World Congress, IFAC 2017, International Federation of Automatic Control, Jul 2017, Toulouse, France. pp.7657-7662, ⟨10.1016/j.ifacol.2017.08.1167⟩. ⟨hal-01488199v2⟩

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