中厚板控制冷却系统中的实测温度处理方法

以中厚板轧后冷却过程控制系统的实测温度处理方法为研究对象,建立具有一定容错性的实测温度滤波处理方法,消除跟踪误差、测量误差等对模型计算精度的影响.在此基础上,利用最小二乘法对实测温度进行曲线拟合,控制模型以拟合结果作为衡量钢板纵向冷却均匀性判据,并进行相应的冷却规程设定和自学习计算.建立钢板纵向分样本控制的温度处理方法,利用线性插值计算获得钢板纵向各个样本的温度值,从而满足系统进行终冷温度和冷却速度高精度控制的需要.

Measured Temperature Processing Technology for Plate Controlled Cooling System

Taking the measured temperature processing technology for the plate controlled cooling system as the research object,a measured temperature filtering method with fault tolerance was established and the effect of measuring error and tracking error was eliminated.On the basis of least square method,the curve for the measured temperature was fitted as the criterion for the plate length cooling uniformity and this method was used in cooling schedule setting and self-learned calculation model.The plate longitudinal sample controlled method based on the measured temperature was established.The temperature of every longitudinal sample was acquired by linear interpolation method to realize the high precision control of finish cooling temperature and cooling rate by the controlled cooling system.