涤纶片基拉膜生产线是一个大滞后的复杂工业生产过程 ,包含纵拉伸区和横拉伸区 ,生产中的扰动经常发生在铸片过程中 .本文为此提出一种针对该类生产过程的预测控制算法 ,与典型的PI控制器相比 ,可以有效地克服内环的扰动 ,外环的预测控制器可以充分利用系统信息给出内环的设计值 Polyester film Kira film production line is a large lag complex industrial production process, including vertical and horizontal stretch stretching zone, the production of the disturbance often occurs in the casting process.This paper presents a production for this type of process Compared with the typical PI controller, the predictive control algorithm can effectively overcome the disturbance of the inner loop. The outer loop predictive controller can make full use of the system information to give the inner loop design value