新型液压轧机控制方案的研究  

A New Control Scheme for Hydraulic Rolling Mill

作　　者：李勇[1] 王君[1] 胡贤磊[1] 刘相华[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《钢铁》2007年第6期42-46,共5页Iron and Steel

基　　金：国家"十五"重大装备研制项目(ZZ0113A040201)

摘　　要：针对板带轧机液压压下控制这一典型的电液位置伺服系统,分析了传统的PID控制方法和新颖的重复控制方法在AGC补偿和偏心补偿中的优缺点,提出了一种基于传统PI控制和嵌入式重复控制的新型复合控制方案,详细分析了系统的结构和重要控制参数的整定。研究结果表明:该控制方案结构简单、易于实现,具有良好的动态和稳态特性,同时实现了板带液压轧机的高效AGC补偿和高精度的偏心补偿。Aiming at the typical electro hydraulic position servo system of hydraulic screw down of rolling mill, the merits and demerits of both PID control and repetitive control for the AGC compensation and roll eccentricity compensation are analyzed, then a novel multiple control scheme is presented,based on the PID control with inserted repetitive control. The structure of the new system and the method of important parameters tuning are described. The results show, that the structure of the proposed control scheme is simple; new control scheme can he easily designed and realized; dynamic and steady characteristics of the system are quite good; the novel system can realize the efficient and highly accurate compensation of AGC and roll eccentricity.

关 键 词：液压轧机 PID控制 重复控制 AGC补偿 轧辊偏心 

分 类 号：TG334.9[金属学及工艺—金属压力加工]