计算机工程与应用
計算機工程與應用
계산궤공정여응용
Computer Engineering and Applications
2015年
20期
267-270
,共4页
烟叶复烤%干燥区%温度%排潮率%前馈解耦控制
煙葉複烤%榦燥區%溫度%排潮率%前饋解耦控製
연협복고%간조구%온도%배조솔%전궤해우공제
tobacco re-drying%drying area%temperature%moisture eliminating rate%feedforward decoupling control
烟叶复烤是香烟生产中的一个重要的环节,复烤过程中温度、水分直接影响了复烤后的烟叶指标和后续烟叶的制丝、打包等工序,复烤干燥区是一个复杂多变量强耦合系统。为了获得较好的控制效果,针对云南某复烤厂仅控制温度而未考虑与湿度的耦合性,并且其控制效果不佳的问题,通过采集大量现场数据,在获得干燥区排潮率软测量模型和温湿度动态模型的基础上,采用前馈解耦控制方法进行了干燥区温度与排潮率的控制仿真研究。仿真研究结果表明,干燥区温度与排潮率的前馈解耦控制与未解耦PID控制相比,具有较好的控制效果。
煙葉複烤是香煙生產中的一箇重要的環節,複烤過程中溫度、水分直接影響瞭複烤後的煙葉指標和後續煙葉的製絲、打包等工序,複烤榦燥區是一箇複雜多變量彊耦閤繫統。為瞭穫得較好的控製效果,針對雲南某複烤廠僅控製溫度而未攷慮與濕度的耦閤性,併且其控製效果不佳的問題,通過採集大量現場數據,在穫得榦燥區排潮率軟測量模型和溫濕度動態模型的基礎上,採用前饋解耦控製方法進行瞭榦燥區溫度與排潮率的控製倣真研究。倣真研究結果錶明,榦燥區溫度與排潮率的前饋解耦控製與未解耦PID控製相比,具有較好的控製效果。
연협복고시향연생산중적일개중요적배절,복고과정중온도、수분직접영향료복고후적연협지표화후속연협적제사、타포등공서,복고간조구시일개복잡다변량강우합계통。위료획득교호적공제효과,침대운남모복고엄부공제온도이미고필여습도적우합성,병차기공제효과불가적문제,통과채집대량현장수거,재획득간조구배조솔연측량모형화온습도동태모형적기출상,채용전궤해우공제방법진행료간조구온도여배조솔적공제방진연구。방진연구결과표명,간조구온도여배조솔적전궤해우공제여미해우PID공제상비,구유교호적공제효과。
Tobacco re-drying is an important part in cigarette production. In the process of re-drying, temperature, moisture content directly impact tobacco index and follow-up procedure, including tobacco shred, packaging and so on. Tobacco drying area is a complicated multi-variable strong coupled system. In order to get better control effect, aiming at a tobacco re-drying factory in Yunnan, only controls temperature but not considers the humidity coupling, and its control effect is not good, so through collecting a large number of field data and obtaining the soft-sensing model of moisture eliminating rate and dynamic model of temperature-humidity in the drying zone, adopting the feedforward decoupling control method for temperature and moisture eliminating rate’s control simulation study. The simulation results show that the feedforward decoupling control of temperature and moisture eliminating rate in the drying zone has better control effect, compared with no decoupling PID control effect.