Abstract：Online flatness measurement and closed-loop control is necessary requirement to produce high-end and fine cold rolled strip steel. The independent innovation of the flatness measurement and control technology is the important demand to upgrade steel industry and build steel powerhouse in China. The strategic conception to promote the technology innovation is explained systematically,on the basis of the brief introduction of the basic situations,the development directions and the existing problems of the flatness measurement and control technology of cold steel strip rolling. The main research contents include the principle and model of the channel coupling and the signal decoupling of the flatness measurement,the dynamic simulating and decoupling models of the flatness regulation and control,the deep smarts modeling of the flatness regulation and control,and the computing simulation and the digital twin,the laboratory experiment and the industry experiment of the flatness measurement and control system. The key scientific and technical problems to have to be solved include the channel coupling mechanics and the signal decoupling method of the flatness meter,the dynamic modeling and decoupling methods of the flatness regulation and control,and the deep smarts modeling method of the flatness regulation and control,and the digital twin method of the flatness measurement and control. The innovative goals are to establish the methods and models of the flatness signal decoupling and dynamic intelligence control,develop the high precision Cyber-Physical Systems (CPS) of the flatness measurement and control with international advanced level,and upgrade the theoretical and technical level of the flatness measurement and control. The research approaches are constructed. Taking the flatness measurement and control system of 6-high mills for example,firstly the flatness measurement decoupling,the whole roll adjustment and the local roll adjustment are researched,and then the three subsystems are integrated into an integrated system,by means of the theoretical analysis,the modeling and simulation,the experiment study,and the machine learning. The integrated system is improved and advanced by the methods of the computing simulation and the digital twin,the laboratory study and the industrial experiment. The above innovation strategy aims to promote the deep research of the flatness measurement and control technology,and improve the intelligence level of steel industry.
刘宏民, 于华鑫, 王东城, 宋明明, 张帅, 张桐源. 冷轧带钢板形测控前沿技术的创新方略[J]. 钢铁, 2023, 58(4): 77-86.
LIU Hong-min, YU Hua-xin, WANG Dong-cheng, SONG Ming-ming, ZHANG Shuai, ZHANG Tong-yuan. Innovative strategy on frontier flatness measurement and control technology of cold strip steel rolling[J]. Iron and Steel, 2023, 58(4): 77-86.
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2023, Vol. 58 
