基于双模糊补偿注塑机料筒多区间温度解耦控制  

Multi Interval Temperature Decoupling Control of Injection Molding Machine Barrel based on Double Fuzzy Control Compensation

作　　者：胡亚南[1] 王鹏文 杨娜[1] 李明辉[2] Hu Yanan;Wang Pengwen;Yang Na;Li Minghui(Xijing University,Xi’an 710000,China;Shaanxi University of Science and Technology,Xi’an710000,China)

机构地区：[1]西京学院,西安710000 [2]陕西科技大学,西安710000

出　　处：《工程塑料应用》2020年第2期77-81,88,共6页Engineering Plastics Application

基　　金：陕西省重点研发计划项目(2018GY-042);西京学院科研基金项目(XJ170129)

摘　　要：针对注塑机料筒多区间温度场的相互耦合影响,造成料筒温度震荡和稳定性差的问题,设计双模糊补偿PID控制策略,以提升料筒区间温度控制的稳定性和精确性。将料筒区间温度的耦合影响作为系统扰动,利用模糊补偿控制进行补偿调节,消除耦合影响误差;以SIEMENS CPU315-2PN/DP为硬件控制器,在STEP7软件中设计并实现料筒温度控制程序;利用Simulink软件对双模糊补偿PID控制算法和模糊PID控制算法进行控制器性能、耦合影响、鲁棒性仿真对比。结果表明,双模糊补偿PID控制能够很好地完成料筒区间温度解耦,提高温度控制的稳定性和精确性。In order to solve the problem of temperature oscillation and poor stability caused by the coupling of multi range temperature field in the barrel of injection molding machine,a double fuzzy compensation PID control strategy was designed to improve the stability and accuracy of the temperature control in the barrel range.The coupling effect of the temperature between the barrels was regarded as the system disturbance,and then the fuzzy compensation control was used to compensate and adjust,so as to eliminate the coupling effect error.Taking Siemens SIEMENS CPU315-2PN/DP as the hardware controller,the temperature control program of the barrel was designed and implemented in STEP7 software.The performance,coupling effect and robustness of the double fuzzy compensation PID control algorithm and the fuzzy PID control algorithm were simulated and compared by using Simulink software.The results show that the double fuzzy compensation PID control can achieve the temperature decoupling between the barrels and improve the stability and accuracy of the temperature control.

关 键 词：多区间 解耦 模糊补偿 注塑机 

分 类 号：TQ320.63[化学工程—合成树脂塑料工业]