Nonlinear Backstepping Control Design using a High Gain Observer for Automatic Gauge Control
Abdelmajid Akil1, Abdelwahed Touati2, Mourad Zegrari3, Nabila Rabbah4

1Abdelmajid Akil, pursuing the Ph.D. degree at the Department of Electrical Engineering, Laboratory of Structural Engineering, Intelligent Systems and Electrical Energy, National Higher School of Arts and Crafts (ENSAM), Hassan II University, Casablanca, MOROCCO.
2Abdelwahed Touati, Research Professor Laboratory of Structural Engineering, Intelligent Systems & Electrical Energy ENSAM, Department of Electrical Engineering – Hassan II University Casablanca, Morocco.
3Mourad Zegrari, professor and head of electrical engineering department of Ecole Nationale Supérieure d’Arts et Métiers (ENSAM) of Casablanca.
4Nabila Rabbah, professor in the department of electric engineering of the ENSAM-Casablanca.

Manuscript received on 24 August 2019. | Revised Manuscript received on 08 September 2019. | Manuscript published on 30 September 2019. | PP: 2553-2561 | Volume-8 Issue-11, September 2019. | Retrieval Number: K18330981119/2019©BEIESP | DOI: 10.35940/ijitee.K1833.0981119
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Abstract: The accuracy and quality of the steel strip exit thickness depends on the structure of the automatic gauge control system (HAGCS) of reversible cold rolling mill. This structure is based on the position control of the work rolls. The design and implementation of a new HAGCS by the backstepping approach with high gain observer are discussed in this paper. Backstepping controller of HAGCS and high gain observer (HGO) has been implemented using MATLAB/SIMULINK software. The simulation results show the effectiveness of the proposed control for improving the quality of the output strip.
Keywords: Automatic Gauge Control; Backstepping; High Gain Observer; Hydraulic Roll gap Control; reversible cold rolling mill
Scope of the Article: Signal Control System & Processing