基于模糊PID的旋压机进给系统动态仿真  

Dynamic Simulation of Spinning Machine Feed System Based on Fuzzy PID

作　　者：孙达 王野牧[1] 赵世洋 SUN Da;WANG Yemu;ZHAO Shiyang(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,沈阳110870

出　　处：《机械工程师》2024年第7期55-58,共4页Mechanical Engineer

摘　　要：为了改善铝杆旋压机进给系统的控制性能,在分析进给系统中两路伺服油缸在不同工况下的运动特点后,提出电液伺服系统位移协同控制策略。首先阐述了旋压机进给系统运动过程及技术指标,并对液压进给控制系统进行设计与研究;其次根据交叉耦合控制理论,建立了AMEsim和Simulink的联合仿真模型。最后,基于模糊PID设计了双缸闭环位置协同控制结构,完成了两路油缸的位置协同控制,保证了协同误差在精度范围内。联合仿真曲线对比结果表明,基于模糊PID的控制系统的协同精度远高于传统PID控制,有较好的控制性能。To improve the control performance of the feed system of an aluminum rod spinning machine,this paper analyzes the motion characteristics of the two servo cylinders in the feed system under different working conditions,and proposes the electro-hydraulic servo system displacement cooperative control strategy.Firstly,the motion process and technical indexes of the feed system of the spinning machine are described,and the hydraulic feed control system is designed and studied.Secondly,according to the cross-coupling control theory,the joint simulation model of AMEsim and Simulink is established.Finally,based on the fuzzy PID,the double-cylinder closed-loop position cooperative control structure is designed,and the position cooperative control of the two cylinders is completed,ensuring that the cooperative error is within the accuracy range.According to the curve comparison of the joint simulation results,the synergetic precision of the system control system based on fuzzy PID is much higher than that of the traditional PID control,and has better control performance.

关 键 词：旋压机 液压控制系统 交叉耦合 协同控制 

分 类 号：TP139.9[自动化与计算机技术—控制理论与控制工程]