基于分散鲁棒控制策略的冷连轧板形板厚多变量系统研究

在冷连轧生产中,通过弯辊来控制板形质量时,在一定程度上会对出口板厚造成影响;而通过调节辊缝来达到控制板厚质量时又会影响板形,这是一个耦合的双入双出过程.针对板形板厚多变量耦合系统,提出一种分散鲁棒控制策略,充分发挥鲁棒控制器的抗干扰性能,将耦合通道人为看作扰动后,针对独立通道分别设计鲁棒控制器,从而在保证各控制通道鲁棒性的同时实现了解耦.仿真实验结果表明了该设计的有效性.

Distributed Robust Control for Combined Shape and Gauge System in Cold Rolling Process

In cold rolling process,flatness is able to be controlled by bending force,but thickness will be affected at the same time.Thickness is regulated by gauge of the mill,but flatness will be affected.For the coupled shape and gauge multivariable system,a distributed robust control scheme is proposed.Considering robust controller's anti-disturbance character, the coupled channels are regarded as disturbance separately,and robust controllers are developed separately.Every main channel's robustness is guaranteed ...