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A Comparison Study of Nonlinear State Observer Design: Application to an Intensified Heat-Exchanger/Reactor

Han, Xue and Li, Zetao and Cabassud, Michel and Dahhou, Boutaib A Comparison Study of Nonlinear State Observer Design: Application to an Intensified Heat-Exchanger/Reactor. (2020) In: 28th Mediterranean Conference on Control and Automation (MED), 15 September 2020 - 18 September 2020 (Saint-Raphaël, France).

(Document in English)

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Official URL: https://doi.org/10.1109/MED48518.2020.9183148


In this paper, five classical nonlinear state observers: extended Luenberger observer (ELO), extended Kalman filter (EKF), high-gain observer (HGO), sliding mode observer (SMO) and adaptive observer (AO), are applied to an intensified chemical heat exchanger/reactor (HEX reactor). In order to choose a suitable observer to develop a new fault diagnosis algorithm for this high nonlinear system, the behaviors of these observers are compared. The maximum overshoot and the settling time, which are the key features of the dynamic of the output estimation error system, are used as the criteria to compare the performances of the observers. Both cases with and without measurement noise are considered. It is concluded that the AO presents the fastest convergence speed and the minimum oscillation for the application to the HEX reactor. And the information provided by the AO will be further used for its fault diagnosis.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02934929
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Guizhou University (CHINA)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:19 Feb 2021 09:50

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