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Cited 5 time in webofscience Cited 8 time in scopus
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Non-interactive looper and strip tension control for hot finishing mill using nonlinear disturbance observer SCIE SCOPUS

Title
Non-interactive looper and strip tension control for hot finishing mill using nonlinear disturbance observer
Authors
Noh, IWon, SJang, YJ
Date Issued
2012-01
Publisher
ISIJ International
Abstract
In this paper, we propose a non-interactive looper and strip tension control method for a hot finishing mill based on the nonlinear dynamic model. Using the NDOB (nonlinear disturbance observer), the nonlinear looper-tension dynamic system is decoupled into two independent SISO (single-input, single-output) subsystems, and moreover, the model uncertainties and the external disturbances generated from forward slip, strip thickness variation and outgoing strip speed are compensated. A modified TSM (terminal sliding mode) controller is utilized to control the looper angle while the output-feedback controller regulates the strip tension by adjusting the incoming roll speed. Hardware experiment with the 2-stand hardware looper simulator was performed to verify the effectiveness of the proposed approach.
Keywords
hot finishing mill; looper tension control; nonlinear disturbance observer; non-interactive control; ROLLING-MILLS; SYSTEMS
URI
https://oasis.postech.ac.kr/handle/2014.oak/15975
DOI
10.2355/isijinternational.52.1092
ISSN
0915-1559
Article Type
Article
Citation
ISIJ International, vol. 52, no. 6, page. 1092 - 1100, 2012-01
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