测试科学与仪器2020，Vol.11Issue(4)：317-325,9.DOI:10.3969/j.issn.1674-8042.2020.04.002
基于差分进化分数阶PID的注塑机液压缸控制
Hydraulic cylinder control of injection molding machine based on differential evolution fractional order PID
摘要
Abstract
Injection molding machine,hydraulic elevator,speed actuators belong to variable speed pump control cylinder system.Because variable speed pump control cylinder system is a nonlinear hydraulic system,it has some problems such as response lag and poor steady-state accuracy.To solve these problems,for the hydraulic cylinder of injection molding machine driven by the servo motor,a fractional order proportion-integration-diferentiation (FOPID)control strategy is proposed to realize the speed tracking control.Combined with the adaptive differential evolution algorithm,FOPID control strategy is used to determine the parameters of controller on line based on the test on the servo-motor-driven gear-pump-controlled hydraulic cylinder injection molding machine.Then the slef-adaptive differential evolution fractional order PID controller (SADE-FOPID) model of variable speed pump-controlled hydraulic cylinder is established in the test system with simulated loading.The simulation results show that compared with the classical PID control,the FOPID has better steady-state accuracy and fast response when the control parameters are optimized by the adaptive differential evolution algorithm.Experimental results show that SADE-FOPID control strategy is effective and feasible,and has good anti-load disturbance performance.关键词
变转速泵控液压缸/差分阶PID控制/自适应差分进化/注塑机控制/抗负载扰动Key words
variable speed pump-controlled cylinder/fractional order proportion-integration-differentiation (FOPID)/self-adaptive differential evolution (SADE)/injection molding machine control/anti-load disturbance分类
信息技术与安全科学引用本文复制引用
李亚秋,谷立臣,杨莎,薛旭飞..基于差分进化分数阶PID的注塑机液压缸控制[J].测试科学与仪器,2020,11(4):317-325,9.基金项目
National Natural Science Foundation of China(No.51675399) （No.51675399）
