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| Study and Development of Ultra-Fast Cooling Model and Self-Adaptive Control System of Hot Strip Rolling |
| LI Zhen-lei,HU Xiao，LI Hai-jun,YUAN Guo,WANG Zhao-dong,WANG Guo-dong |
| The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China |
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Abstract Ultra-fast cooling technology which is the kernel of NG-TMCP to develop low-cost and high-performance steel materials, and the control point precision of the process temperature after rolling is the key factor to guarantee the performance and properties of the hot rolling strip. The self-adaptive control model was constructed and studied based the early developed equipment and process in order to improve the control precision of the process temperature. Owing to the optimal design of model structure, study of self-adaptive control strategy and weighted smooth handling of learning coefficients, the self-adaptive function of the system was enhanced significantly. The high control precision and stable performance has been proved since the control system used in the hot strip rolling line successfully, which proves a solid foundation to improve high performance steels and develop new steel product.
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Received: 31 May 2012
Published: 27 February 2013
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2013, Vol. 48 
