模块化轧机控制系统在高速棒材生产线中的应用  

Application of modular rolling mill control system in high-speed bar production line

作　　者：刘东[1] 吉年丰[1] LIU Dong;JI Nian-feng(Electric and Automation Division,MCC Capital Engineering and Research Incorporation Limited,Beijing 100176,China)

机构地区：[1]中冶京诚工程技术有限公司电气与自动化工程技术所,北京100176

出　　处：《冶金自动化》2020年第6期84-92,共9页Metallurgical Industry Automation

摘　　要：随着低压变频/调速技术的进步,独立传动的模块化轧机代替传统的集中传动的精轧机组,成为当前高速棒材生产线的主流技术。针对多台模块化轧机的控制难点,建立了活套数学模型,引入了虚拟活套技术,并给出了活套高度和堆钢量的非线性关系。针对轧制过程中的咬钢速降问题,对机械设备、变频传动建立了三机架模块化轧机的数学模型,理论推导了单机架咬钢速降和力矩冲击,仿真分析了多机架咬钢速降过程。结合国内外高速棒材生产线工程,介绍了3种模块化轧机控制系统硬件组成,分析了转速预控和转矩预控这2类冲击补偿方法,通过实际工程数据验证了仿真算法的正确性。With the development of low voltage AC frequency converter/DC speed regulation technology,separated-drive modular rolling mill replaces the traditional centralized roll mill,and becomes the mainstream technology of current high-speed bar production line.Focus on the control difficulties of multiple modular rolling mills,the looper mathematic module was established,the virtual-looper technology was introduced and the non-linear relation between looper height and steel-pill was given.For steel-biting speed drop in rolling process,the mathematic module of three stand modular rolling mill was established for mechanical equipment and variable frequency drive,the steel-biting speed drop and torque impact for single stand were theoretically deduced,and the muti stand steel-biting speed drop process for multi-modules was simulated and analyzed.Combined with high-speed bar production line projects at home and abroad,three kinds of hardware components of control systems for modular rolling mill were introduced,speed pre-control and torque pre-control methods for impact compensation were analyzed,and simulation algorithm with actual project data was verified.

关 键 词：高速棒材 模块化轧机 虚拟活套 冲击补偿 

分 类 号：TG333[金属学及工艺—金属压力加工]