Abstract
An optimal multivatiable looper control system based on decoupling strategy has been developed for hot strip finishing mills. Based on the dynamic configuration of the coupling system, we can get the status space expression of the coupling loopers system. Through the tools of Matlab we make out of the transfer function of looper system. Based on Decouping-Inbariable character theory and the transfer function of looper system we gain the transfer function of the decoupling net. By using the Simulink toolbox of the Matlab language, the simulation results have shown that, after decoupled, the loopers control system performance gets much better.
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