A fast adaptive temperature control method for continuous casting slab induction heating
A technology of induction heating and continuous casting slabs, which is applied in temperature control, metal rolling, etc. It can solve the problems of strong anti-interference ability, blind spots in the trial and error process, and the control method is easily disturbed by the environment, so as to achieve good temperature control effect Effect
Active Publication Date: 2019-03-29
杭州四达电炉成套设备有限公司
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Problems solved by technology
Although the prediction model is easy to establish, the control method based on the prediction model is susceptible to environmental interference; the mechanism modeling based on the whole process is almost impossible, but the control method of mechanism modeling is generally strong in anti-interference ability
The trial and error method needs to rely on workers' years of work experience, and there are blind spots in the trial and error process, which cannot achieve the optimization effect
Method used
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[0032] In order to make the technical means and creative features realized by the present invention easy to understand, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.
[0033] Such as figure 2 As shown, in this example, considering the continuous casting and rolling production process of a steel plant, there is effective measured data for induction heating of 12m*0.15m*0.15m continuous casting slabs for one week, and the time range is from September 22, 2016 to September 2016 On September 28, the data from September 22 to September 27 were used as training samples, and the data on September 28 were used as verification samples.
[0034] 1. Raw data processing
[0035] Such as figure 1 As shown, the measured data are obtained from the continuous casting and rolling production line database, including the inductor DC voltage U in , Inductor DC current I in , Continuous casting sl...
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The invention discloses a rapid self-adaptation temperature control method for continuous casting blank induction heating and provides a rapid self-adaptation temperature control method for continuous casting blank induction heating based on mechanism model simplified setting. In reference to a finite element induction heating grid modeling method, the evolution of electromagnetic coupling, vortex heat generating, heat conduction, heat radiation and the like in the whole electromagnetic induction heating process are inspected through a mechanism model, the mechanism model is abstracted and simplified as the mapping state equation of the initial state and the final state, and the mechanism model can be obtained through setting via 1-2 times of data checking. The model has high repetition precision and can be rapidly used for actual temperature control.
Description
technical field [0001] The invention belongs to the field of industrial process control, in particular to a fast self-adaptive temperature control method for continuous casting slab induction heating. Background technique [0002] Induction heating, as a means of supplementary heat instead of traditional gas furnace, has been gradually applied in the production of hot continuous rolling of continuous casting slabs. Since the temperature of the continuous casting slab directly affects the rolling effect, it is necessary to control the temperature of the continuous casting slab induction heating on site. It is generally realized by induction heating simulation and heating process detection and control. The former has the characteristics of intuitive results, comprehensive information, observable temperature changes of continuous casting slabs, and no real-time control, while the latter has the characteristics of large time lag, difficult modeling, and easy to be affected by t...
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IPC IPC(8): B21B37/74B21B1/46
CPCB21B1/46B21B37/74
Inventor 徐哲杨钦塔何必仕孔亚广
Owner 杭州四达电炉成套设备有限公司