| 级联型PID系统在加料含水率控制上的应用 |
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| 引用本文： | 郭奔,朱辉平,李汉莹,王天奎,丁伟,周小忠,邵长岭,孙哲建.级联型PID系统在加料含水率控制上的应用[J].烟草科技,2011(12). |
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| 作者姓名： | 郭奔 朱辉平 李汉莹 王天奎 丁伟 周小忠 邵长岭 孙哲建 |
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| 作者单位： | 浙江中烟工业有限责任公司杭州卷烟厂,310008 |
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| 基金项目： | 浙江中烟工业有限责任公司科技项目“造纸法薄片切丝生产工艺研究与生产线建立”(ZJZY2011D003) |
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| 摘 要： | 杭州卷烟厂CO2膨胀工艺制丝线加料含水率控制系统采用开环单PID控制模式,存在控制能力差、含水率波动较大、人为干预不及时、控制精度低等问题,为此设计了基于级联型PID控制模型的加料含水率自动控制系统.该系统采用延迟3 min后的润叶机出口含水率作为加料机入口含水率,用于调节加料入口含水率偏差；加料出口含水率作为PID级联回路控制,加料筒内部水流量作为PID控制主回路.应用结果表明,级联型PID控制系统实现了自动反馈调节功能,减小了含水率波动幅度；采用双反馈控制模式,增强了系统预判断能力和控制的实时性,基本消除了含水率控制的滞后性,提高了加料机出口烟叶含水率的控制能力.改进后含水率月合格率从83％提高到92％,提高了烟丝的工艺质量.
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| 关 键 词： | 膨胀烟丝 级联型PID系统 烟叶含水率 加料机 |
Application of Cascade PID System in Moisture Content Control of Casing Process |
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| GUO BEN
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ZHU HUI-PING
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LI HAN-YING
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WANG TIAN-KUI
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DING WEI
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ZHOU XIAO-ZHONG
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SHAO CHANG-LING
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SUN ZHE-JIAN.Application of Cascade PID System in Moisture Content Control of Casing Process[J].Tobacco Science & Technology,2011(12). |
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| Authors: | GUO BEN ZHU HUI-PING LI HAN-YING WANG TIAN-KUI DING WEI ZHOU XIAO-ZHONG SHAO CHANG-LING SUN ZHE-JIAN |
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| Affiliation: | GUO BEN,ZHU HUI-PING,LI HAN-YING,WANG TIAN-KUI,DING WEI*,ZHOU XIAO-ZHONG,SHAO CHANG-LING,and SUN ZHE-JIAN Hangzhou Cigarette Factory,China Tobacco Zhejiang Industry Co.,Ltd.,Hangzhou 310008,China |
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| Abstract: | The opened-loop single PID control mode used in the moisture content control system for casing process in primary processing line of DIET system in Hangzhou Cigarette Factory has the shortcomings of low control accuracy and not timely operator intervention,therefore,a new control system based on cascade PID control model was designed,wherein the output moisture content of ordering cylinder delayed for 3 minutes was adopted as the input moisture content of casing cylinder for casing cylinder control.The outp... |
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| Keywords: | Expanded tobacco Cascade PID system Moisture content in tobacco Casing cylinder |
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