基于模糊分数阶PID的食品包装机张力控制系统设计  

Design of tension control system of food packaging machine based on fuzzy fractional-order PID

作　　者：胡亚南[1] 李鑫[1] 霍蛟飞[1] 李明辉[2] 索小娟[3] HU Ya-nan;LI Xin;HUO Jiao-fei;LI Ming-hui;SUO Xiao-juan(Xijing University,Xi’an,Shaanxi 710000,China;Shaanxi University of Science and Technology,Xi’an,Shaanxi 710021,China;Zhengzhou Railway Vocational&Technical College,Zhengzhou,Henan 450000,China)

机构地区：[1]西京学院,陕西西安710000 [2]陕西科技大学,陕西西安710021 [3]郑州铁路职业技术学院,河南郑州450000

出　　处：《食品与机械》2020年第12期79-84,共6页Food and Machinery

基　　金：西京学院科研基金项目(编号:XJ190201);陕西省重点研发计划资助项目(编号:2018-GY042)。

摘　　要：针对食品包装机袋膜张力较难控制问题,设计了一种模糊分数阶PID袋膜张力控制系统。利用专家知识和成熟经验,结合分数阶控制,制定分数阶PID 5个参数的控制规则,实现分数阶PID参数在线实时整定,提升了袋膜张力控制精度和稳定性。以PLC和触摸屏为核心,以TIA Protal为开发平台,完成控制系统硬件设计、网络组态、程序设计,实现控制系统升级。仿真结果表明:模糊分数阶PID控制器具有响应速度快、模型失配鲁棒性好、抗干扰能力强的优势。该控制系统能够满足包装机袋膜张力控制精度和稳定性需求。Aiming at the problem that the film tension control system of food packaging machine has the characteristics of multi-interference,time-varying and non-linearity,and the traditional PID is difficult control,a fuzzy fractional PID film tension control system is designed.Using expert knowledge and mature experience,combined with fractional order control,the control rules of five parameters of fractional order PID are designed,and the on-line real-time tuning of fractional order PID parameters is realized,which improves the precision and stability of bag film tension control.With PLC and touch screen as the core and TIA protal as the development platform,the hardware design,network configuration and program design of the control system are completed,and the control system is upgraded.The simulation results show that the fuzzy fractional PID controller has the advantages of fast response speed,good robustness of model mismatch and strong anti-interference ability.The control system can meet the requirements of precision and stability of tension control of packaging machine bag film.

关 键 词：张力控制 模糊控制 分数阶PID TIA protal 

分 类 号：TS206.5[轻工技术与工程—食品科学] TP273[轻工技术与工程—食品科学与工程]