Robust shape control in a Sendzimir cold-rolling steel mill
Bates, D.G. and Ringwood, J.V. and Holohan, A.M. (1996) Robust shape control in a Sendzimir cold-rolling steel mill. Proceedings of the 13th World Congress of the International Federation of Automatic Control . ISSN 0-08-042605-0
The shape control problem for a Sendzimir 20-roll cold rolling steel mill is characterised by operation over a wide range of coonditions arising from roll changes, changes in rolling schedules and changes in material gauge, width and hardness. Previous approaches to the problem suggest storing a large number of precompensator matrices to cater for the full tange of operating conditions. This paper, on the other hand, attempts to synthesise a controller which is optimally robust to changes in the conditions associated with the rolling cluster, resulting in a reduced storage requirement for the controlling computer. The performance of the robust controller is evaluated via nonlinear simulation.
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