Abstract: In a hot steel strip production line,the coiling temperature control is critical for strip quality.In this paper,the coiling temperature control of a typical steel strip mill is investigated.A simplified dynamic model is introduced,based on which a cooling control scheme with combined feedforward,feedback and adaptive algorithms is developed.Simulations with a model validated using actual plant data are conducted,and the results have confirmed the effectiveness of the proposed control method.

Key words: hot steel strip coiling temperature, combining control algorithms, simulation system

摘要： 在热轧带钢生产线上,卷取温度的精确控制对带钢质量是至关重要的。详细研究了一个实际的热轧带钢卷取温度控制系统。建立了一种简化的动态控制模型,并用一个改进的遗传算法在线调整模型的参数。基于该模型提出了一个包括冷却反馈控制、前馈及自适应联合控制算法的控制器。通过建立一个更精确的仿真系统,达到指导现场生产的目的。实践结果证明提出的控制方法是有效的,仿真系统也具有较大的实际意义。

关键词: 热轧带钢卷取温度, 联合控制算法, 系统仿真