基于前馈-反馈控制的斯太尔摩风冷系统优化设计

Optimized Design of Stelmor Air Cooling System Based on Feed-forward and Feedback Control

传统的斯泰尔摩风冷系统是通过改变辊道的线速度,来改变线卷的布放密度,同时调整冷却风机的转速及佳灵装置角度来达到冷却风量的控制和分配,从而控制线材的冷却速度。由于该系统是一个开环控制系统,且环境温度对冷却速度也有非常大的影响,所以传统线材的冷却速度控制精度存在误差非常大的特点。为此,提出了一种基于前馈-反馈控制的斯泰尔摩风冷优化系统。该系统能够根据环境温度的不同以及线材实时冷却速度的变化,自动修正系统模型参数,使得线材的实际冷却速度与标准的冷却速度更加接近,从而大大提高线材的质量水平和稳定性。

Traditional Stelmor air cooling system changes the lay out density of coils through changing the line speed of the roll table, at the same time adjusts the rotation speed of the cooling fan and optitflex angle to achieve the control and distribution of cooling air volume, thus to control the cooling speed of wire rods. As the system is an open control system and environmental temperature has much impact on the cooling speed, conventional control accuracy of cooling speed of wire has the problem of big deviation. Therefore, an optimized Stelmor air cooling system based on feed-forward and feedback was put forward, which can automatically correct system model parameters according to changes in environmental temperature and wire rod cooling speed, making the actual cooling speed much closer to standard cooling speed and greatly improving the quality and stability of wire rods.