基于模糊滑模控制的塑料挤出机温度控制系统设计  

Temperature Control System of Plastic Extruder Based on Fuzzy Sliding Mode Control

作　　者：高源 赵龙 庞浩 冯晗 罗永刚[1] GAO Yuan;ZHAO Long;DING Wei;LUO Yonggang(School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049;State Grid Shandong Electric Power Company Changle County Power Supply Company,Weifang 262400)

机构地区：[1]山东理工大学电气与电子工程学院,淄博255049 [2]国网山东省电力公司昌乐县供电公司,潍坊262400

出　　处：《现代制造技术与装备》2021年第10期62-65,共4页Modern Manufacturing Technology and Equipment

基　　金：国家重点研发计划资助项目(2018YFC1707104)。

摘　　要：针对塑料挤出机传统温度控制系统的高滞后性问题,提出了一种基于模糊滑模的温度控制系统。该系统利用滑模控制对扰动的不敏感特性和对输出的快速响应特性,设计了带有指数趋近率的滑模控制器,首先,通过调节滑模面的参数,使得系统在最小超调量的前提下,以最快的速度逼近稳定点;其次,通过模糊控制器分析系统误差和误差变化率,并优化滑模控制的趋近速率,实现对系统抖振的抑制;最后,在MATLAB-Simulink环境下,对塑料挤出机的模糊滑模温度控制系统进行了仿真分析,结果表明,该控制方法满足塑料挤出机温度控制的要求。Aiming at the problem of high hysteresis in traditional temperature control system of plastic extruder,a temperature control system based on fuzzy sliding mode is proposed.Based on the insensitivity of sliding mode control to disturbance and the fast response to output,a sliding mode controller with exponential reaching rate is designed;By adjusting the parameters of the sliding surface,the system can approach the stable point with the fastest speed under the premise of minimum overshoot;The fuzzy controller is used to analyze the system error and error change rate,optimize the reaching rate of sliding mode control,and suppress the chattering of the system.In the MATLAB-Simulink environment,the fuzzy sliding mode temperature control system of plastic extruder is simulated and analyzed.The results show that under this control method,which meets the requirements of temperature control of plastic extruder.

关 键 词：塑料挤出机 模糊控制 滑模控制 温度控制 

分 类 号：TQ320.5[化学工程—合成树脂塑料工业] TP273[自动化与计算机技术—检测技术与自动化装置]