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http://dx.doi.org/10.5302/J.ICROS.2015.14.8037

Design of LTBC Controller for Tension Control in Down Coiler Process of Hot Strip Mills  

Lee, Sang Ho (Technical Research Lab., POSCO)
Park, Hong Bae (School of Electronics Engineering, Kyungpook National University)
Park, Cheol Jae (School of Mechanical and Automotive Engineering, Daegu University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.21, no.4, 2015 , pp. 301-308 More about this Journal
Abstract
In this paper, we propose an LTBC (Low Tension and Load Balance Control) scheme to improve a coiling shape control by reduction the tension fluctuation by the torque disturbance in the down coiler process of hot strip mills. The proposed controller is a combination of an LTC to control the overload at load-on in the mandrel and an LBC to regulate the load balance of the upper and bottom pinch roll. A tension calculation model is suggested with the concept of the tension deviation. The effectiveness of the proposed control scheme is verified from simulation under a disturbance of the pinch roll torque. Using a field test, we show that the performance of the shape and tension control is improved by the LTBC control.
Keywords
down coiler process; hot strip mills; torque control; tension control; low tension control; load balance control; coiling shape control; pinch roll; telescope; run out table;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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