Variable coefficient loop control method

A control method and variable coefficient technology, applied in the direction of tension/pressure control, etc., can solve problems such as affecting the normal progress of the processing line, poor strip product quality, strip tension oscillation, etc., to reduce the oscillation phenomenon and product quality problems, solve Tension oscillation, ensure the effect of control

Inactive Publication Date: 2015-01-07
武钢集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of high-strength steel varieties, when the processing line produces and rolls thick gauge high-strength steel, due to the mismatch between the looper adjustment control and the looper mechanical system, the tension of the strip steel in the looper area of ​​the processing line oscillates, causing strip steel Poor product quality will lead to shutdown of scrap steel in severe cases, which seriously affects the normal production of the processing line and brings great economic losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Embodiment: A variable coefficient looper control method. When the strip steel processing line is running, the control chip selects the coefficient of the looper winch torque regulator according to the thickness and yield strength of the strip steel, and the looper winch transmission device transmits the looper according to the control chip. Adjust the torque output of the looper hoist by the torque regulator coefficient from the looper, so as to control the tension of the strip steel in the looper area on the processing line, the formula is as follows:

[0022] Q n =A*GAIN*DEV n +A*GAIN*(T 0 / T n -1)*DEV n-1 +Q n-1

[0023] in:

[0024] Q n is the output of the looper winch torque controller at sampling time n (value 0~1);

[0025] Q n-1 is the output of the looper winch torque controller at sampling time n-1 (value 0~1);

[0026] T 0 is the program scan time (1 ~ 15ms);

[0027] T n Integral time (5 ~ 15s);

[0028] GAIN is the proportional coefficient (...

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PUM

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Abstract

The invention discloses a variable coefficient loop control method. When a strip steel treatment line runs, a control chip selects coefficients of a loop winch torque adjuster according to the thickness and the yield strength of strip steel, a loop winch transmission device adjusts torque output of a loop winch according to the torque adjuster coefficients transmitted by the control chip, so that the tension of the strip steel in a loop area on the treatment line is controlled. The formula includes Qn=A*GAIN*DEVn+A*GAIN*(T0/Tn-1)*DEVn-1+Qn-1. The variable coefficient loop control method has the advantage that automatic control can be realized in acceleration and deceleration and in a steady state.

Description

technical field [0001] The invention relates to the field of strip steel processing line control, in particular to a variable coefficient looper control method. Background technique [0002] With the development of high-strength steel varieties, when the processing line produces and rolls thick gauge high-strength steel, due to the mismatch between the looper adjustment control and the looper mechanical system, the tension of the strip steel in the looper area of ​​the processing line oscillates, causing strip steel Poor product quality will lead to shutdown of scrap steel in severe cases, which will seriously affect the normal production of the processing line and bring great economic losses. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology, and propose a variable coefficient looper control method that can realize automatic control during acceleration and deceleration and stea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/50
CPCB21B37/50
Inventor 姚伟东周子伟肖银平谭杰林晓华罗静
Owner 武钢集团有限公司
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