Cold-rolled steel strip shape control system for actively preventing saturation phenomenon of executer

Abstract

The invention relates to a cold-rolled steel strip shape control system for actively preventing saturation phenomenon of an executer. The cold-rolled steel strip shape control system comprises a strip shape deviation computing module, a strip shape deviation signal filtering processing module, a steel strip form multi-variable optimization controller, a compensation regulation module and a rolling mill transmission device, wherein one output end of the rolling mill transmission device is connected with the strip shape deviation signal filtering processing module through a real-time position state acquiring module of the rolling mill transmission device and a current strip shape regulation and control capability online evaluation computing module; the other output end of the rolling mill transmission device is connected with the compensation regulation module; the third output end of the rolling mill transmission device is connected with an online strip shape measuring module through a rolling mill outlet strip shape; and the output end of the online strip shape measuring module is connected with the strip shape deviation computing module. By adopting the cold-rolled steel strip shape control system, the problem of poor strip shape control effect is solved, the saturation phenomenon occurring probability of rolling mill transmission equipment is lowered to the maximum extent, the service life of a strip shape control device is prolonged, and the prolonging of the service life of the rolling mill equipment and control over the production cost are facilitated.

Description

technical field [0001] The invention relates to the field of cold-rolled steel strips, in particular to a cold-rolled steel strip shape control system that actively avoids the saturation phenomenon of actuators. Background technique [0002] Cold-rolled strip steel is a high value-added steel enterprise product, and users' requirements on the shape and quality of cold-rolled strip steel are getting higher and higher with the continuous expansion of its application range. With the rapid development of computer technology and control technology, the on-line control technology of plate shape has been successfully applied in actual production and achieved good control effect. [0003] The traditional flatness control system and method take the elimination of flatness deviation as the optimization goal, and calculate the adjustment amount of each transmission device of the rolling mill on-line to change the exit flatness. From the perspective of control theory alone, the calcula...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a cold-rolled strip shape control system that actively avoids the occurrence of actuator saturation, so as to solve the problems caused by the frequent occurrence of actuator saturation in the traditional cold-rolled strip shape control. The technical problem of poor shape control effect

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