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Composed Adaptive Control for a second-order nonlinear model of a biotechnological process

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6 Author(s)
H. P. Wang ; MIS - Université de Picardie Jules Verne, 7 Rue du Moulin Neuf, 80000, Amiens, France ; B. Kalchev ; Y. Tian ; I. Simeonov
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This paper presents a new Composed Adaptive Controller (CAC) for trajectory tracking of a methane fermentation process in stirred tank bio-reactors. The referred biotechnological process is described by a second-order non-linear model based one-stage reaction scheme. The proposed con troller comprises an Algebraic Differential Estimation (ADE) based compensation component and a Recursive Model Free Controller (RMFC) stabilization component which dose not require any knowledge of the physical model parameters. The proposed entire control enables trajectories tracking of a variable set point trajectory and over performs the existing anaerobic digestion control schemes, such as a classical Proportional-Integral-Derivative (PID) control or a nonlinear PI control. Computer simulation examples illustrate the performance and robustness of the proposed approach.

Published in:

Control & Automation (MED), 2011 19th Mediterranean Conference on

Date of Conference:

20-23 June 2011