Research of Work of Optimizing Control System of Process Conditions in Rolling Mills Reheating Furnaces

Industrial heating furnaces can conduct simultaneously several different, often closely inter-related high temperature processes. When controlling such individual processes using local control loops mutual influence of these processes on each other should be taken into account. The need to take into account the interaction is particularly important in optimizing control loops as this influence is appears in displacement (drift) of static characteristics of optimized processes due to actions made in the process of disturbances from other control loops. Introduction of processes interaction makes additional requirements for the implementation of control loops for individual process parameters, including requirements for algorithms of optimizing paths. Authors had studied the behavior of the system of main control parameters optimization of the heating furnace in the presence of significant disturbance signals from the stabilizing paths when changing modes of operation the heating furnace. As a result of the researches lead algorithms of automatic optimization have been worked out, which successfully solve control task in the presence of the disturbances caused by the work of other control loops.