| 热轧宽带钢精轧机组机架振动分析及抑制措施 |
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| 引用本文： | 李振兴,刘相华.热轧宽带钢精轧机组机架振动分析及抑制措施[J].钢铁,2009,44(12). |
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| 作者姓名： | 李振兴 刘相华 |
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| 作者单位： | 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;北京首钢自动化信息公司,北京,100041
2. 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 |
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| 基金项目： | 国家自然科学基金资助项目(50634030) |
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| 摘 要： | 以某热连轧生产线主传动F1~F4机架增容改造为背景,对交交变频主传动的控制系统进行了设计、装置制造、调试及新功能开发。从传动系统的稳态分析及轧制过渡过程入手,推导了交交变频传动系统带负荷观测器和不带负荷观测器的传递函数,利用MATLAB进行稳定性分析,找到了轧机振动的原因,提出了抑制措施。投入负荷观测器后,对抑制轧机振动起到了良好的实际效果。
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| 关 键 词： | 轧机振动 传递函数 负荷观测器 |
Vibration of Finishing Stands in Hot Strip Mill and Suppression Measure |
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| LI Zhen-xing,LIU Xiang-hua.Vibration of Finishing Stands in Hot Strip Mill and Suppression Measure[J].Iron & Steel,2009,44(12). |
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| Authors: | LI Zhen-xing LIU Xiang-hua |
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| Affiliation: | LI Zhen-xing1,2,LIU Xiang-hua1(1.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China,2.Beijing Shougang Automation Information Technology Co.,Ltd.,Beijing 100041,China) |
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| Abstract: | Based on rebuilding of the main drive for F1-F4 stands of a hot strip mill,the design、equipment manufacture、testing and development of new features for AC-AC conversion main drive control system were carried out.The steady-state and transitional stages during rolling were analyzed,SO as to derive the transfer function of main drive system with load observer and without load observer.The stability analysis was carried out by using MATLAB,the reason of mill stand vibration was found and suppression measures were proposed.After load observer put into use,it has a good actual results to suppress the mill stand vibration. |
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| Keywords: | mill stand vibration transfer function load observer |
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