Transactions of Materials and Heat Treatment

Title：Modeling and numerical simulation of predictive functional control for correcting in hot aluminum strip continuous rolling

Authors： Shi Shuzheng Ma Liyong Fu Zhuo Zhang Wei Huo Zhenzhen Ni Xiaoyu

Unit： Hebei University of Architecture Changsha University

KeyWords： aluminum strip hot continuous rolling deviation guiding predictive functional control

ClassificationCode：TG339

year,vol(issue):pagenumber：2015,40(8):24-29

Abstract：

For the characteristics of aluminum strip deviation in hot aluminum strip continuous rolling, a deviation mathematical model of hot aluminum strip continuous rolling was set up. The multi-impulse cascade control system was found with deviation factors of roll gap difference and thickness difference as inputs, rolling force difference and quantity of deviation as transfer function, and predictive functional control as control algorithm. A simulation of correcting functional control system was conducted, and it is used in F4 frame, which is the easiest to deviate in the hot aluminum strip continuous rolling. The control results were compared with the traditional PID control. The simulation results show that when the correcting control system is used in the predictive control system, the adjusting time is 0.5 s, the overshoot of rolling force difference is less than 10 kN, and the overshoot of deviation is less than 1 mm. Its robustness is stronger than that of PID in the short adjusting time, small overshoot, and meets correcting control requirements in high speed rolling. The control algorithm of correcting predictive function was verified by experiment. The experimental results show that when the correct system is regarded as field data to input and disturb, the rolling force difference of any frames quickly can be reduced stably and accurately in case deviation phenomenon during rolling.

Funds：

国家自然科学基金资助项目（51374241）；河北省高等学校科学技术研究项目（Z2014125）；河北建筑工程学院青年基金资助项目（QN201402）；河北建筑工程学院青年基金资助项目（Q-201308）

石树正（1984-），男，硕士，讲师

Reference：

［1］Montague R J, Watton J, Brown K J. A machine vision measurement of slab camber in hot strip rolling [J]. Journal of Materials Processing Technology, 2005, 168(1):172-180.
［2］日本钢铁协会编.板带轧制理论与实践[M]. 王国栋，译.北京: 中国铁道出版社, 1990.Iron and Steel Institute Japan. Practice and Theory of Strip Rolling [M]. Translated by Wang G D. Beijing: Railway Publishing House, 1990.
［3］马立勇，刘义伦，付卓. 热轧铝板带平衡调控建模及数值模拟[J] . 锻压技术, 2014,39 (11): 130-134.Ma L Y, Liu Y L, Fu Z. Balance straightening modeling and numerical simulation on lateral non-symmetrical phenomenon in hot rolling of Al-alloys [J]. Research on Iron & Steel, 2014,39 (11): 130-134.
［4］赵先琼，刘义伦，付卓，等. 非对称扰动下热轧铝板带跑偏过程三维数值模拟[J]. 湖南大学学报：自然科学版, 2011, 38（7）:37-42.Zhao X Q, Liu Y L, Fu Z, et al. Numerical simulation of the asymmetric unstable situation in hot continuous rolling of aluminium alloy [J]. Journal of Hunan University:Natural Science, 2011,38（7）: 37-42.
［5］刘义伦，凌于蓝，付卓. 铝热连轧尾部跑偏控制模型及其仿真[J]. 工程设计学报, 2013,（20）: 226-229，235.Liu Y L, Ling Y L, Fu Z. The tail deviation of the aluminum strip hot rolling control model and its simulation. [J]. Chinese Journal of Engineering Design, 2013,（20）: 226-229，235.
［6］Biggs D L, Hardy S J, Brown K J.Influence of process variables on development of camber during hot rolling of strip steel[J].Iron Making and Steel Making, 2000, 27(1): 55-62.
［7］Yang L P，Peng Y，Liu H M.Two-dimensional transient temperature field of finish rolling section in hot tandem rolling[J].Journal of Iron and Steel Research International, 2004, 11(4): 29-33.
［8］Abdelghani-Idrissi M A, Arbaoui M A, Estel L, et al. Predictive functional control of a counter current heat exchanger using convexity property[J]. Chemical Engineering and Processing: Process Intensification, 2001, 40(5):449-457.
［9］Xin-fang Z, Da-ping X, Yi-bing L. Predictive functional control of a doubly fed induction generator for variable speed wind turbines [A]. Fifth World Congress on Intelligent Control and Automation [C].Hangzhou, 2004.
［10］Vivas A, Poignet P. Predictive functional control of a parallel robot[J]. Control Engineering Practice, 2005,13(7):863-874.
［11］Ryoichi Takahashi. State of the art in hot rolling process control [J]. Control Engineering Practice, 2001，(9): 987-993.
［12］Bouhenchir H, Cabassud M, Le Lann M. Predictive functional control for the temperature control of a chemical batch reactor [J]. Computers & Chemical Engineering, 2006, 30(6):1141-1154.
［13］何纯玉. 中厚板轧制过程高精度侧弯控制的研究与应用[D]. 沈阳：东北大学，2009.He C Y. High Precision Camber Control and Application in Medium Thick Strip Rolling [D]. Shenyang：Northeastern University，2009.
［14］Bonchis A,Corke P I, Rye D C, et al. Variable structure methods in hydraulic servo systems control[J]. Automatica, 2001, 37: 585-595.
［15］王春行. 液压伺服控制系统[M]. 北京：冶金工业出版社，1980.Wang C H. Hydraulic Servo Control System [M]. Beijing: Metallurgical Industry Press, 1980.

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