Universal dynamic profile control cycle calculation method

Abstract

The invention discloses a universal dynamic profile control cycle calculation method which solves the problem that since a profile control system is a typical time delay measuring system, the profile measuring time and the control cycle of the profile control system need to be matched well for achieving accurate profile control. In the process of rolling a roll of band steel, the rolling speed goes up or down; if the same control cycle is adopted, it is difficult to balance the high speed and the low speed; when the speed of the band steel is lower than a certain value, the profile control system will automatically exit control. Besides, different profile roll suppliers adopt different data transmission modes, a batch of data may be original data collected after a profile roll rotates one round or data processed after the profile roll rotates a plurality of rounds. By means of the universal dynamic profile control cycle calculation method, the standardization of the profile control system can be guaranteed, that is, one control mode can adapt to the different data transmission modes.

Description

technical field [0001] The invention relates to the technical field of industrial automatic control, in particular to a method for calculating a general dynamic shape control period. Background technique [0002] Since the shape control system is a typical measurement time-delay system, to achieve accurate shape control, it is necessary to match the shape measurement time and the control period of the shape control system well. During the rolling process of a coil of strip steel, the rolling speed rises and falls. If the same control cycle is used, it is difficult to balance high speed and low speed. When the strip speed is lower than a certain value, the shape control system will automatically exit the control. In addition, different flat roll suppliers use different data transmission methods. A batch of data may be the original data collected by one round of flat roll, or it may be processed data after multiple rotations. [0003] The method widely used at present is ...

AI Technical Summary

Problems solved by technology

[0003] The method widely used at present is to adopt a fixed control cycle in the whole rolling process, but the rolling speed rises and falls during the rolling process of a coil of strip steel. If the same control cycle is used, it is difficult to take into account both high speed and low speed. If the control period is too long, the adjustment frequency will be reduced, affecting the adjustment effect; if the control period is too short, it will cause interference when the rolling speed is low, seriously affecting the adjustment effect

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