基于趋势预测和分区反馈的梗丝气流干燥出口含水率精准控制策略  

Precision control strategy of outlet moisture content in tobacco cut stem airflow drying based on trend prediction and partition feedback

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

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

出　　处：《轻工学报》2022年第2期65-70,共6页Journal of Light Industry

基　　金：国家自然科学基金项目(71672209);河南中烟工业有限责任公司科技项目(ZW201735)。

摘　　要：针对梗丝气流干燥出口含水率稳定性不足的问题,在原有PID控制模型基础上,设计了趋势预测调整控制与分区反馈调整控制相结合的整合控制模型。该模型将出口含水率的实际值与设定值的偏差分为多个不同的区间,根据偏差所处的区间及在区间内变化趋势的分析结果确定实时调控策略,同时根据来料含水率的变化趋势预测出口含水率的变化并采取修正措施。实际应用结果表明,梗丝气流干燥出口含水率标准偏差降低了27.9%、短期过程能力指数提高了45.4%,该控制模型可有效提高梗丝气流干燥出口含水率的稳定性。Aiming at the problem of insufficient stability of outlet moisture content in tobacco cut stem airflow drying,an integrated model combining trend prediction adjustment control and zoning feedback adjustment control was designed based on the original PID control model.The gap between the actual value and the set value of outlet moisture content was divided into several different intervals in this model,and a real-time control strategy was determined by the interval of gap lied in and the change trend in the interval.At the same time,according to the change trend of inlet moisture content,the change of outlet moisture content was predicted and necessary adjustments were taken.The practical application research results showed that the standard deviation of outlet moisture content in tobacco cut stem airflow drying was reduced by 27.9%after applying the integrated control model,CPK increased by 45.4%.The integrated control model could effectively improve the stability of outlet moisture content in tobacco cut stem airflow drying.

关 键 词：趋势预测 分区反馈 梗丝气流干燥 出口含水率 

分 类 号：TS452[农业科学—烟草工业] TP273[自动化与计算机技术—检测技术与自动化装置]