Cooling hot rolling steel strip using combined tactics

摘要

The coiling temperature control of a typical steel strip mill was investigated.Due to the high speed of a strip and complex circumstance,it is very hard to set up a cooling model with high accuracy.A simplified dynamic model was proposed,based on which a cooling control scheme with combined feedforward,feedback and adaptive algorithms was developed.Meanwhile,the ge- netic algorithms were used for the optimization of model parameters.Simulations with a model validated using actual plant data were conducted,and the results have confirmed the effectiveness of the proposed control methods.At last,a simulation system for coiling temperature control was developed.It can be used for new product trials and newcomer training.