冷轧带钢虚拟仪器板形测控系统及其应用

doi:10.3901/JME.2018.14.001

机械工程学报 ›› 2018, Vol. 54 ›› Issue (14): 1-7.doi: 10.3901/JME.2018.14.001

• 仪器科学与技术 • 下一篇

冷轧带钢虚拟仪器板形测控系统及其应用

杨利坡^1,2, 于华鑫¹, 张永顺¹, 刘宏民^1,2

1. 燕山大学国家冷轧带钢装备及工艺工程技术研究中心秦皇岛 066004;
2. 燕山大学亚稳材料制备技术与科学国家重点实验室秦皇岛 066004

收稿日期:2017-08-05 修回日期:2018-02-05 出版日期:2018-07-20 发布日期:2018-07-20
作者简介:杨利坡,男,1978年出生,博士,教授。主要研究方向为冷轧带材理论及板形测控方法。E-mail:yanglp@ysu.edu.cn;于华鑫,男,1988年出生,博士研究生。主要研究方向为板形测控研究。E-mail:ybingq@ysu.edu.cn
基金资助:
国家自然科学基金（51305387）和河北省自然科学钢铁联合基金（E2015203103）资助项目。

Shape Detection and Control System of Cold Rolling Strip Based on the Virtual Instrument and Its Industrial Application

YANG Lipo^1,2, YU Huaxin¹, ZHANG Yongshun¹, LIU Hongmin^1,2

1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004;
2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004

Received:2017-08-05 Revised:2018-02-05 Online:2018-07-20 Published:2018-07-20

摘要/Abstract

摘要： 针对大宽厚比冷轧带钢复杂板形测控问题，从板形检测单元划分、工艺误差综合补偿、非对称高次板形模式识别、板形统计评价和板形手段协同调控等角度，详细地分析了影响板形测控精度和调控效率的物理机制，并基于机理-智能协同调控模型和虚拟仪器平台，研制了新型的冷轧带钢智能板形测控系统。首先，细化板形检测单元有助有改善带钢边部板形的检测效果，同时还能提高复杂板形缺陷的识别精度；其次，根据各板形控制手段的响应时间和调控特性，实施分层次的组合调控策略，能够充分利用各板形控制手段的调控潜力，避免不同板形控制手段的性能冲突；此外，对在线板形实施智能统计评价，可以准确评估轧机板形控制特性和轧后带钢板形指标，有助于优化板形测控模型。工程案例表明，新型的虚拟仪器板形测控系统闭环周期缩短在100 ms以内，板形控制在6 I以内。

关键词: 板形测控, 闭环控制, 冷轧带钢, 虚拟仪器

Abstract: For the complex shape problems of the cold rolling strip with the large width-thickness ratio, according to the shape detection unit, the comprehensive compensation of the process errors, the asymmetrical high-order shape pattern recognition, the shape statistical evaluation and the shape coordinated regulation methods, the physical mechanism of the shape control precision and efficiency are analyzed in detail. Based on the mechanism-intelligence cooperative regulation model and the virtual instrument platform, a new intelligent shape control system of cold rolling strip is developed. First of all, the thinning shape detection unit can not only significantly make the edge shape detection effect of the cold rolling strip better, but also improve the recognition accuracy of complex shape defects. Secondly, taking the response time and the control characteristic of every shape control mean into account, the hierarchical combined regulation strategy can make full use of the shape regulation potential of all shape control means. On the other hand, it is helpful in avoiding the performance conflict of different shape control means. In addition, the online implementation of intelligent statistical evaluation can accurately assess the characteristics of different mills and the shape index of the cold rolling strip, which can optimize the shape control process to a certain extent. The case shows that the close-loop period of the new shape system, based on the virtual instrument platform which significantly improves the shape control efficiency and the control accuracy, is shortened within 100 ms, and the shape control is within 6 I.

Key words: close-loop control, cold rolling strip, shape detection, virtual instrument

中图分类号:

TP211

杨利坡, 于华鑫, 张永顺, 刘宏民. 冷轧带钢虚拟仪器板形测控系统及其应用[J]. 机械工程学报, 2018, 54(14): 1-7.

YANG Lipo, YU Huaxin, ZHANG Yongshun, LIU Hongmin. Shape Detection and Control System of Cold Rolling Strip Based on the Virtual Instrument and Its Industrial Application[J]. Journal of Mechanical Engineering, 2018, 54(14): 1-7.

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冷轧带钢虚拟仪器板形测控系统及其应用

Shape Detection and Control System of Cold Rolling Strip Based on the Virtual Instrument and Its Industrial Application

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