Abstract
Reheating furnaces for hot rolling sheet mills are multi-zone heaters of a transmission type in which several simultaneous high temperature interrelated processes take place. The necessity of the account of the processes mutual influence on each other introduces the additional requirements for the control loops embodiment by separate process variables. It is of current interest especially in using optimizing control loops since this effect is evident in the shift of the statistical characteristics of the optimizing processes due to the actions brought in the process of perturbations from the other control loops.
The aim of the study is to develop and investigate the behavior of the optimization control system for the heating furnace main process variables granting the significant perturbations in the stabilizing circuits when changing the heating furnace operation modes.
As a result of carried out investigation the optimizing control system structure actualizing the heating furnace power saving mode has been developed. The results of the developed system simulation showed the effective implementation of heating furnace energy saving modes under the significant perturbations in the stabilizing control loops.
Keywords
Reheating furnace, slab billet heating, energy saving heating modes, optimal control system, transients in control loops, automated system
References
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