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http://dx.doi.org/10.5302/J.ICROS.2015.15.0113

Study on LSDC Design for Coiling Shape Control 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.9, 2015 , pp. 869-874 More about this Journal
Abstract
We developed an LSDC (Load Shift and Load Distribution Control) technology in order to improve coil quality and productivity by reducing tension fluctuation especially for the tail of the strip in the down coiler in hot strip mills. To adapt the new controller, the torque and speed distribution between the zero pinch roll, pinch roll, and mandrel are needed. The proposed controller is a combination of an LSC to share the tension between the mill stand and the mandrel, and an LDC to shift the torque load from the zero pinch roll to the pinch roll. From the simulation, the proposed controller is verified under the torque disturbance. Using a field test, the torque deviation decreased by nearly 50% through utilization of the LSDC control.
Keywords
down coiler; zero pinch roll; mandrel; tension control; load shift control; load distribution control; torque disturbance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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