锻压技术

秒流量控制的研究及其在液压AGC系统中的应用

英文标题：Research on second-flow control and its application in hydraulic system AGC

单位：1.燕山大学工业计算机控制河北省重点实验室河北秦皇岛 066004 2.国家冷轧板带装备及工艺工程技术研究中心河北秦皇岛 066004

分类号：

出版年,卷(期):页码：2016,41(1):71-76

摘要：

由于光电编码器分辨率的限制，造成基于光电编码器的秒流量液压AGC（Automatic Gauge Control）系统在板厚控制过程中的板厚控制精度达不到要求的问题，采用插入高频脉冲的方式，来提高光电编码器的测速精度，计算结果显示插入高频脉冲后光电编码器的测速误差由原来的1.6%下降到0.04%。为实现高频脉冲的插入设计了一款基于FPGA的秒流量计，并将其应用于秒流量液压AGC系统中,经过实际数据统计,秒流量计和测厚仪测量出的轧机出口侧板厚之间的误差小于0.1%，由此证明秒流量计的板厚测量精度可以满足板厚控制系统的要求。将基于秒流量计的秒流量液压AGC系统应用于冷轧现场显示，该系统控制板厚误差在±5 μm以内，且系统具有很好的稳定性、鲁棒性和实用性。

According to the issue that the thickness control precision is not met the requirements during the thickness control process by second-flow hydraulic automatic gauge control system due to the limitation of photoelectric encoder resolution, the mode of inserting a high-frequency pulse was used to improve the speed accuracy measured by the photoelectric encoder. The calculation results show that the speed measurement error decreases from 1.6% to 0.04% . A second-flow meter based on FPGA was designed to realize the high frequency pulse inserting, which is used in the second-flow hydraulic AGC system. The real data statistics indicates that the thicknesses error between the second-flow meter and thickness gauge for lateral plate of mill outlet is less than 0.1%. Therefore, the thickness accuracy measured by the second-flow meter can meet the requirement of the automatic thickness control system. The second-flow hydraulic AGC system based on the second-flow meter was applied in cold rolling, which brings a thickness control error within ±5 μm. As a result, the system is of good stability, high robustness and high practical value.

基金项目：

国家自然科学基金资助项目(61074099);国家自然科学基金委员会与宝钢集团有限公司联合资助项目(U1260203);河北省高等学校创新团队领军人才培育计划资助项目(LJRC013)

杨景明（1957-），男，博士，教授

参考文献：

[1]张莉, 刘东华, 张立静, 等. 单机架可逆冷轧机厚度闭环控制 AGC 系统的改进[J]. 有色设备, 2007,(5): 29-32.

Zhang L, Liu D H, Zhang L J, et al. Improvement of thicknessclosed loop AGC control system for single rack reversible cold rolling mill[J]. Non-Ferrous Metallurgical Equipment,2007,(5):29-32.

[2]邓仁昡，张广基，刘相华. 轧制差厚板力学性能试验及数值模拟研究[J]. 锻压技术，2014，39（6）：32-36.

Deng R X，Zhang G J，Liu X H. Research on experiment and numerical simulation of mechanical properties for tailor rolled blank [J]. Forging & Stamping Technology，2014，39（6）：32-36.

[3]Hearns G. Hot strip mill mass flow control[J]. Steel Industry, 2002,44(43):223-227.

[4]杨景明，任敬伟，车海军，等.基于增量式编码器实现的高精度带材延伸率测量系统：中国专利, ZL2013 20474761.1[P]. 2014-1-15.

Yang J M, Ren J W, Che H J, et al. To achieve high-precision strip elongation measurement system based on the incremental encoder. China Patent，ZL201320474761.1[P]. 2014-1-15.

[5]王诚,吴继华,范丽珍，等.Altera FPGA/CPLD 设计[M].北京:人民邮电出版社,2005.

Wang C, Wu J H, Fan L Z, et al. Designer of Altera FPGA[M]. Beijing: Posts & Telecom Press,2005.

[6]周曦, 王崇涛, 徐键, 等. 森吉米尔轧机秒流量 AGC 的改进与应用[J]. 武钢技术, 2014, （5）： 20.

Zhou X, Wang C T, Xu J, et al. The modification and application of sendzimir mill mass flow AGC system[J]. Wuhan Iron and Steel Corporation Technology,2014,（5）:20.

[7]杨景明. IGC650HCW 冷带轧机控制系统关键技术研究 [D]. 秦皇岛: 燕山大学, 2000.

Yang J M. Study for The Key Technology of The Control System for the IGC650HCW Cold Strip Rolling Mill[D]. Qinhuangdao: Yanshan University,2000.

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