Title :
Linearizing controller for higher-degree nonlinear processes with compensation for modeling inaccuracies practical validation and future developments
Author :
Nowak, Pawel ; Czeczot, Jacek ; Klopot, Tomasz ; Szymura, Mateusz ; Gabrys, Bogdan
Author_Institution :
Silesian University of Technology, Faculty of Automatic Control, Electronics and Computer Science, Institute of Automatic Control, Gliwice, Poland
Abstract :
This work shows the results of the practical implementation of the linearizing controller for the example laboratory pneumatic process of the third relative degree. Controller design is based on the Lie algebra framework but in contrast to the previous attempts, the on-line model update method is suggested to ensure offset-free control. The paper details the proposed concept and reports the experiences from the practical implementation of the suggested controller. The superiority of the proposed approach over the conventional PI controller is demonstrated by experimental results. Based on the experiences and the validation results, the possibilities of the potential application of the data-driven soft sensors for further improvement of the control performance are discussed.
Keywords :
Computational modeling; Mathematical model; Noise measurement; Observers; Process control; Sensors; Adaptive Control; Linearizing Control; Practical Validation; Soft Sensors;
Conference_Titel :
Informatics in Control, Automation and Robotics (ICINCO), 2014 11th International Conference on