基于灰色预测-模糊PID的全电动注塑机注射速度控制  

Speed control of the all electric injection molding machine based on the grey prediction fuzzy PID

作　　者：崔振华[1] 李素玲[1] 

机构地区：[1]山东理工大学电气与电子工程学院,山东淄博255049

出　　处：《山东理工大学学报（自然科学版）》2015年第4期31-34,39,共5页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：针对全电动注塑机射胶过程的工作原理和所呈现的随机性、非线性、时变性等特点,提出将灰色预测、模糊控制与常规PID控制相结合的灰色预测模糊PID控制算法,用于全电动注塑机注射速度的控制.模糊PID控制通过模糊推理对常规PID参数自适应调整实现速度控制.建立注射速度模型,并进行MATLAB仿真.结果表明,采用预测模糊PID的注射速度控制能够获得很好的速度跟踪性、稳定性和抗干扰性,易实现注射速度的分级控制.According to the working principle of full electric injection molding machine injection process and presents the stochastic,nonlinear and time-varying,we put forward the grey forecasting,grey forecasting control fuzzy control and conventional PID combining the fuzzy P control algorithm of ID,used to control the injection speed of the all electric injection molding machine.Fuzzy PID control by fuzzy reasoning to realize the speed control of the conventional PID parameters are adjusted and the injection velocity model is established,and simulated by MATLAB.Results show that the prediction using the injection speed fuzzy PID control can obtain good speed tracking performance,stability and anti-jamming,easy to realize grading injection speed control.

关 键 词：注塑机 灰色预测 模糊控制 PID控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]