Open AccessImproved Control of the Web Winding System Based on a Super-Twisting Observer
Author(s) -
Abdelmajid Akil,
Abdelwahed Touati,
Mourad Zegrari,
Radouane Majdoul,
Nabila Rabbah
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.c4651.098319
Subject(s) - control theory (sociology) , robustness (evolution) , sliding mode control , lyapunov function , nonlinear system , observer (physics) , state observer , computer science , robust control , lyapunov stability , control system , control engineering , engineering , control (management) , artificial intelligence , physics , biochemistry , chemistry , quantum mechanics , electrical engineering , gene
The web winding system (WWS) presents a difficult problem at the level of control because of the strong nonlinearities of the models and the effects of internal or external disturbances. To improve the dynamic performance and robustness of the control of WWS, a robust control method based on the first and second order sliding mode algorithm is proposed in this work. The stability of the controllers is proved by the theory of Lyapunov stability using an appropriate switching function. In addition, an observer of super twisting tensions is suggested. The developed method allows a direct estimate "on line" of the tension. Finally, computer simulations are developed to show the performance of the sliding mode control and the proposed nonlinear observer