基于多模型自适应控制方法的FGC控制

Control of FGC System Based on Multi-model Adaptive Control Method

冷连轧机动态规格变换时各机架的入口厚度一般变化较大,采用传统自适应控制的辨识算法的收敛速度不能跟随参数实际变化速度,控制效果不佳.针对这一问题,提出一种多模型自适应控制方法.通过对五机架冷连轧机进行仿真表明,多模型自适应FGC系统具有较好的控制精度、跟踪速度以及稳定性.

The change of entry gauge is very large when the flying gauge varies in tandem cold rolling mills, and the speed of identification convergence with a traditional self-adaptive controller is slower than that of parameters changing. In order to deal with this problem, an adaptive multi-model control method was proposed, by which simulations on a 5-stand tandem cold rolling mill were carried out. It is found that the system has a satisfied speed, stability and precision.