Author:
Fang-Chen Yin,Xiang-Cheng Wu
Abstract
This paper introduces a linear quadratic sliding mode control (LQ-SMC) scheme into a looper control system. First, according to a 1700 mm tandem hot mill, the state-space dynamic model of the looper system was established, and then, the optimal control law of the looper system was obtained based on the established model. Finally, the optimal sliding mode and optimal sliding mode control law of the LQ-SMC scheme were designed such that the sliding motion could satisfy the optimal value of the quadratic performance index. Simulation results show that the proposed control scheme has complete robustness to external disturbances that satisfies certain conditions, and the coupling between the looper angle dynamic and strip tension dynamic is also minimized.
Funder
Natural Science Foundation of Fujian Province
Promotion Program for Young and Middle-aged Teacher in Science and Technology Research of Huaqiao Universit
Subject
Materials Chemistry,Metals and Alloys,Mechanics of Materials,Computational Mechanics
Cited by
3 articles.
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