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Ramp self-adaptive control method for tension set value

An adaptive control and tension setting technology, which is applied in the field of steel rolling, can solve the problems of tension fluctuation in the strip tension control area, affect the stability of the tension control system, and the tension setting value changes too fast, so as to meet the requirements of control changes. requirements, ensuring stability and accuracy, and improving quality

Inactive Publication Date: 2019-01-11
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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AI Technical Summary

Problems solved by technology

This phenomenon will affect the tension control system of the tension control system on the strip steel of the previous specification before the welding seam.
[0007] At the same time, if the ramp time of the tension setting value ramp generator is set too small, it will cause the tension setting value to change too fast, causing tension adjustment fluctuations
Since the cold rolling processing line is a continuous production line, the tension fluctuation in a certain strip tension control area will cause the tension fluctuation in the adjacent strip tension control area, and then cause the tension fluctuation in the strip tension control area, and even affect the tension of the entire production area. Stability of tension control system

Method used

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  • Ramp self-adaptive control method for tension set value

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Embodiment Construction

[0020] The present invention includes a programmable controller and a transmission system; the programmable controller includes a first ramp time generator 11, a second ramp time generator 21, a first tension setting value ramp generator 12, a second tension setting value ramp Generator 22 , tension PI regulator 31 , load balance controller 32 , torque adder 33 , speed setting value ramp generator 41 , DeltaV controller 42 , speed synthesizer 43 .

[0021] figure 1 It is the realization schematic diagram of the cold rolling treatment line tension control system of the present invention.

[0022] Such as figure 2 As shown, the process tension set value T_setp issued by the process is used as the input value of the input terminal TP_X1 of the first tension set value ramp generator 12, and the weld seam enters Flag, zone length L_Zone, strip speed V_Strip, and normal time Nor_time as The input values ​​of the first ramp timing generator 11 at the inputs X1 , X2 , X3 , X4 . Th...

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Abstract

The invention discloses a ramp self-adaptive control method for a tension set value and belongs to the technical field of steel rolling. By additionally arranging a ramp time generator to a tension control system of a cold rolling processing line, it is mainly realized that in a strip steel tension control area, and when the tension set value changes, ramp time of tension changing is correctly selected; especially when welding joints pass the tension control area, the ramp time is self-adaptively adjusted according to the length of the control area and the speed of strip steels; and the stability and accuracy of the tension set value adjustment are ensured, so that the product quality of the strip steels on the production line is improved.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, and in particular relates to a tension control system of a cold rolling processing line, in particular to a control method for adjusting the change of tension set value by using a slope time generator in the tension control system of a cold rolling processing line . Background technique [0002] In the production process of the cold rolling processing line, the steel strip must be under tension to run normally and stably. The tension roller is arranged on the production line as an important tension control equipment. It divides the production line into multiple tension control areas. Through the control of the tension roller To achieve full line tension control. The stable and precise adjustment of the tension system is an important factor affecting the quality of the strip. The edge wave and uneven thickness of the strip are all related to the adjustment of the tension change, especially...

Claims

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Application Information

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IPC IPC(8): B21B37/48
CPCB21B37/48
Inventor 桑霖孙燕京李洁古常青马千里朱永军
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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