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Modeling and Identification of Hydraulic System on Rolling Mill

1994; Elsevier BV; Volume: 27; Issue: 8 Linguagem: Inglês

10.1016/s1474-6670(17)47888-8

2589-3653

Lars Malcolm Pedersen, Lars Malcolm Pedersen,

Iterative Learning Control Systems

The identification of a hydraulic system on a hot rolling mill is described. The rolling mill is in operation at The Danish Steelworks Ltd. in Frederiksværk, Denmark. The hydraulic system is used for thickness control of the rolled plates. A non linear model for the system is derived and transformed to discrete time. The data are collected during normal operation, which implies that the system is operating in closed loop. It is in this connection shown that unique parameters can be obtained for the system despite of this. The identified model is able to predict the output well.