冷轧过程中监控自动厚度控制系统的控制策略

Contol Strategy of Monitoring Automatic Gauge Control System for Cold Rolling Process

针对具有纯滞后惯性环节的冷轧板带厚度控制系统,研究加入了Smith预估器的监控自动厚度控制(AGC)系统,并计算具有二阶最优特征的控制器参数,在定时采样情况下推导出显式控制率表达式。最后,将定时采样情况下的显式控制率与理论算法所得显式控制率进行比较,验证了该显式控制率表达式的正确性。

Aiming at the thickness control system of cold rolled strip with pure delay,the monitoring automatic gauge control(AGC)system with Smith predictor was studied.The explicit control rate expression was deduced under the condition of timing sampling.Then,the explicit control rate under the condition of timing sampling was compared with that of theoretical algorithm to verify the correctness of the explicit control rate expression.