Academic Editor: Youssef EL FOUTAYENI
Received |
Accepted |
Published |
29 January 2020 |
13 February 2020 |
10 March 2020 |
Abstract: The Hydraulic automatic gauge control (HAGC) [1] system is used in cold rolling mill control system, a fine adjustment types it to eliminate or reduce in the process of rolling steel strip produced by vertical thickness deviation, so as to ensure the accuracy requirement of the product thickness. The HAGCS of the cold rolling mill becomes difficult to control to improve performance [2]. This is due to the complexity of HAGCS and its nonlinear mathematical model. It is clear that the structure of the controller generated by backstepping [3] is composed of a proportional action, to which is added a derivative action on the errors. The absence of integrator leads to the appearance of a constant static error not null. The problem solution is the design of a new backstepping control law. This technique has an integral action. For this purpose, this communication describes a new control strategy by nonlinear control of the AGC by backstepping with integral action [4]. This controller has been implemented using MATLAB/SIMULINK software. The simulation results show clearly the effectiveness of the proposed control for improving the quality of the output web.
