基于S7-1200PLC的啤酒发酵温度控制系统研究  

Research on temperature control system of beer fermentation based on S7-1200PLC

作　　者：李鑫[1] 张煜星[1] 高博[1] LI Xin;ZHANG Yu-xing;GAO Bo(Xijing University, Xi＇an, Shaanxi 710021, China)

机构地区：[1]西京学院,陕西西安710021

出　　处：《食品与机械》2018年第4期116-119,152,共5页Food and Machinery

基　　金：西京学院科研基金项目(编号:XJ170127)

摘　　要：针对啤酒发酵温度控制系统具有时变性、非线性和滞后性的特征,运用传统控制方法不能实现啤酒发酵温度精确控制的问题。引入论域伸缩因子,设计变论域模糊PID控制器,实现PID参数在线精细整定;以S7-1200PLC控制器和KTP1000触摸屏为硬件基础,开发啤酒发酵自动控制系统,实现人机交互。啤酒发酵试验结果表明:啤酒发酵温度控制误差为±0.09℃,控制精度为0.75%,温度控制系统稳定性好、精度高,提高了啤酒质量。As the temperature control system of beer fermentation has the characteristics of time-varying,nonlinear and lagging,the traditional control method can not be used to control the beer fermentation temperature accurately.In this paper,the variable universe fuzzy PID controller was designed by introducing the extension and reduction factors of the universe,and the PID parameters were on-line fine tuning.Based on S7-1200 controller and KTP1000 touch screen,the automatic control system of beer fermentation was developed to achieve human-machine interaction.The results of beer fermentation test showed that：the control error of beer fermentation temperature±0.09 ℃,the control accuracy 0.75%.The temperature control system designed has good stability and high accuracy,which can increase the quality of beer.

关 键 词：啤酒发酵 温度控制 变论域 S7-1200PLC 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TS262.5[自动化与计算机技术—控制科学与工程]