| 铝电磁连续铸轧改进型复合磁场控制系统 |
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| 引用本文： | 黄燕,凌玉华,杨欣荣,廖力清.铝电磁连续铸轧改进型复合磁场控制系统[J].控制工程,2009(Z1). |
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| 作者姓名： | 黄燕 凌玉华 杨欣荣 廖力清 |
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| 作者单位： | 中南大学信息科学与工程学院; |
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| 基金项目： | 国家863高技术计划基金资助项目(2001AA337070) |
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| 摘 要： | 针对现有铝电磁连续铸轧复合磁场控制系统存在的变频范围窄、控制不稳定等问题,通过分析电磁铸轧机理,采用SPWM交-直-交变频的设计方案。同时,由于现有控制系统是一开环系统,电磁铸轧铝板特性参数难以在线检测,提出建立基于标准支持向量机的晶粒度软测量模型的思想,并给出了基于软测量模型的形式化描述、设计原则及设计步骤。实验结果表明,改进后的系统能产生符合工艺要求的复合磁场,电磁场频率的作用范围为10～25Hz,换相周期数为1～5,谐波分量较小;同时生产出的铝板组织均匀,晶粒度达到1级水平。
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| 关 键 词： | 电磁铸轧 复合磁场 软测量模型 交-直-交变频 |
Improved Complex Magnetic Field Control System of Aluminum Electromagnetic Continuous Roll-casting |
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| HUANG Yan,LING Yu-hua,YANG Xin-rong,LIAO Li-qing.Improved Complex Magnetic Field Control System of Aluminum Electromagnetic Continuous Roll-casting[J].Control Engineering of China,2009(Z1). |
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| Authors: | HUANG Yan LING Yu-hua YANG Xin-rong LIAO Li-qing |
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| Affiliation: | HUANG Yan,LING Yu-hua,YANG Xin-rong,LIAO Li-qing (School of Information Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | In order to solve the problems of narrow range of frequency conversion and unsteadiness control of the composite magnetic field control system in the existing aluminum electromagnetic continuous roll-casting(ACER) process, the principle of AECR and effects produced by electromagnetic parameter on quality of roll-casting sheet are analyzed. A design scheme of AC-DC-AC frequency inverter based on Sinusoidal Pulse Width Modulation(SPWM) is adopted in the system.A thinking of establishing a grain size soft-sens... |
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| Keywords: | electromagnetic roll-casting composite magnetic field AC-DC-AC frequency inverter soft sensor model |
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