Distribution of the Strip Tensions with Slip Control in Strip Processing Lines

Daniel Magura, Karol Kyslan, Sanjeevikumar Padmanaban and Viliam Fedák
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Daniel Magura: BSH Michalovce, Továrenská 1635/2, 071 01 Michalovce, Slovakia
Karol Kyslan: Department of Electrical Engineering and Mechatronics, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia
Sanjeevikumar Padmanaban: Department of Energy Technology, Aalborg University, 6700 Esbjerg, Denmark
Viliam Fedák: Department of Electrical Engineering and Mechatronics, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia

Energies, 2019, vol. 12, issue 15, 1-15

Abstract: The control of tension in processing lines for metal strips tackles several problems. The process of achieving high tension driven by a multi-motor drive system, where the motors are mechanically coupled by a strip, is affected by the maximal torque of each drive, by friction between the strip and the surface of the tension roll, and by the wrap angle. The friction itself and the wrap angle are described by the e µα factor, which can be also calculated as the ratio of tensions in the strip in the previous section and subsequent section of the multi-motor drive. In this paper, an algorithm for the proper distribution of tensions in the strip for a multi-motor drive system of a continuous processing line is revealed. The algorithm ensures the tension distribution among particular drives of the tension leveler while respecting the physical limits of the drives and also preserving the desired conditions of a constant ratio between the input and output tensions for all drives in the leveler. The algorithm also prevents overloading of the drives. Finally, the algorithm was implemented in a control system of a strip processing line, and the obtained results correspond with the simulations. This, in turn, confirms the correctness of the algorithm design.

Keywords: tension control; multi-motor drive; continuous strip processing line; tension distribution algorithm; capstan problem; industrial drive (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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