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卷取温度控制已成为带钢热连轧计算机控制系统的一项常规控制功能,但是热轧带钢卷取温度的控制还存在目标卷取温度控制精度差及带钢在宽度方向上的温度分布不均匀导致带钢变形等问题,针对以上问题建立了在带钢宽度和长度方向上的二维层流冷却温度控制模型,提出了二维最小均方误差(2DLMS)控制策略。最后,应用安阳钢铁集团第二炼轧厂1780热轧生产数据对该模型进行了仿真分析,结果表明该模型较现用的模型有更好的精确度,解决了低目标卷取温度控制精度差的问题,而且在宽度方向上温度分布区域均匀化,缓解了带钢变形的力度。对于研究热轧层流冷却温度控制系统用一定的参考价值和实用意义。
Coiling temperature control has become a conventional control function of the hot strip tandem computer control system. However, the control of the coiling temperature of the hot strip also has the poor control accuracy of the target coiling temperature and the temperature distribution of the strip in the width direction In order to solve the above problems, a two-dimensional laminar flow cooling temperature control model in strip width and length direction was established. Two-dimensional minimum mean square error (2DLMS) control strategy was proposed. Finally, the model was simulated by the 1780 hot rolling production data of No.2 Steelmaking Plant of Anyang Iron and Steel Group. The results show that the model has better accuracy than the existing model and solves the problem of low target coiling temperature control precision The problem of uniform temperature distribution in the width direction alleviates the deformation of the strip. It is of certain reference value and practical significance for studying the hot-rolled laminar cooling temperature control system.