薄板烘丝机出口含水率稳定性控制方法研究  

Study on stability control method of outlet moisture content of cut-tobacco drier

作　　者：刘穗君 刘颖 赵万莹 王海宇 杨光露 李超 刘磊 冯凯迪 LIU Suijun;LIU Ying;ZHAO Wanying;WANG Haiyu;YANG Guanglu;LI Chao;LIU Lei;FENG Kaidi(Nanyang Cigarette factory,China Tobacco Henan Industrial Co.,Ltd.,Nanyang 473007,China;Business School,Zhengzhou University,Zhengzhou 450001,China;Henan Center Line Electronic Science and Technology Co.,Ltd.,Zhengzhou 450004,China)

机构地区：[1]河南中烟工业有限责任公司南阳卷烟厂,河南省南阳市473007 [2]郑州大学商学院,河南省郑州市450001 [3]河南中心线电子科技有限公司,河南省郑州市450004

出　　处：《中国烟草学报》2022年第5期41-46,共6页Acta Tabacaria Sinica

基　　金：国家自然科学基金项目“基于PLD的过程质量控制经济统计优化设计研究”(71672209);河南中烟工业有限责任公司科技项目“制丝质量精准控制系统平台研究及推广应用”(2018410006340007)。

摘　　要：【目的】解决薄板烘丝机出口含水率控制精度较低、波动较大问题。【方法】采用滑窗法监测入口含水率的整体性波动并进行相应的准确控制,采用指数加权移动平均(Exponentially Weighted Moving Average,EWMA)法对出口含水率的波动及时调整,建立前馈和反馈相结合的出口含水率整合控制模型,并采用自学习算法对模型进行自动优化和修正。【结果】控制方法改进后,出口含水率控制精度显著提高,过程偏移量、标准差和极差分别降低50.0%、37.5%和14.3%,过程能力指数提高57.1%。【结论】基于滑窗预测和EWMA调整的薄板烘丝出口含水率稳定性控制方法能有效提升该工序的质量控制能力。[Background]This study aims to promote the control precision of outlet moisture content of cut-tobacco drier and decrease quality variation.[Methods]A sliding window method was used to monitor fluctuation of inlet moisture content An Exponentially Weighted Moving Average(EWMA)method was used to adjust outlet moisture content timely.An integrated control model was established by combining feedforward and feedback control,and further revised by self-learning optimization algorithm.[Results]The results showed that the control precision of outlet moisture content was significantly improved,with pdeviation,extreme difference and mean square error decreased by 50.0%,37.5%and 14.3%respectively,and the capability index increased by 57.1%.[Conclusion]Stability control method of moisture content in cut tobacco drying process based on sliding window forecast and EWMA adjustment can effectively improve the quality control capability of cut tobacco drier.

关 键 词：薄板烘丝机 出口含水率 滑动窗口 指数加权移动平均 自学习优化 

分 类 号：TS43[农业科学—烟草工业]