Automatic control method and system for continuous annealing furnace, computer readable storage medium and computer program product

Abstract

The invention discloses an automatic control method for a continuous annealing furnace. The method can improve strip steel annealing precision. The method comprises the following steps: a data input step: inputting furnace entering data, wherein the furnace entering data at least comprises a strip steel furnace entering speed, a strip steel thickness and a strip steel furnace entering temperature; a data filtering step: performing filtering processing on the in-furnace data to form measurement data; a data sorting step: sorting the stored historical data to form data for training generation, wherein the data for training generation at least comprises a strip steel charging historical temperature and a strip steel discharging historical temperature; a furnace temperature generation step: generating a furnace temperature set value according to the measurement data and the data for training generation; a first learning step: regularly learning and updating a model for calculating a furnace temperature set value according to the measurement data and the data for training generation; and a data output step: outputting the furnace temperature set value.

Description

Technical field [0001] The present invention relates to a continuous annealing furnace automatic control method, a continuous annealing furnace automatic control system, a computer readable storage medium, and a computer program product. Background technique [0002] It is known that the function of the continuous annealing furnace is to perform preheating according to the set steel temperature curve of the surface, open fire, radiant tube heating, heat, cooling, etc. For standard products. [0003] Continuous annealing furnace is a non-linear, time-change, multivariable tight coupled, large-time control object, and complex system in industrial process control is difficult to establish an accurate mathematical model. For example, as described in the Non-Patent Document "Cold Rolled Steel Continuous Annealing Furnace Temperature Control Strategy Research", the current continuous annealing furnace mainly adopts the PID control method for the strip temperature, by the operator by se...

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Problems solved by technology

[0003] The continuous annealing furnace is a nonlinear, time-varying, multi-variable tightly coupled, large time-delay control object, and it is difficult to establish an accurate mathematical model for the complex system in its industrial process control

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