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

A strip shape and control system technology, which is applied in the field of cold-rolled strip steel, can solve problems such as the deterioration of the shape control effect, and achieve the effect of improving the quality of cold-rolled shape control, meeting real-time requirements, and reducing the amount of calculation

Inactive Publication Date: 2012-03-07
WISDRI ENG & RES INC LTD
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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

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

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0030] This embodiment discloses a flatness control system for a six-high cold rolling mill with horizontally movable work rolls that actively avoids actuator saturation. The product specification of this example (thickness × width): 0.35mm × 900mm, steel type: high-grade non-oriented HNGO, rolling speed: maximum 900m / min, coiling tension 220KN, main motor power 5500KW, intermediate roll lateral movement - 200-200mm, the bending force of the work roll is -540KN-540KN, the bending force of the middle roll is 0-360KN. The automation level is used for the transmission and exchange of process control data. The flatness measurement device uses the Stressometer flatness roll of ABB Company in Sweden. The flatness roll has a diameter of 313mm and is composed of a solid steel shaft. The measurement area, in which the m...

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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...

Claims

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Application Information

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IPC IPC(8): B21B37/28
Inventor 解相朋赵菁
Owner WISDRI ENG & RES INC LTD
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