基于变模糊PID控制器的阀控非对称缸复合控制策略  

Compound Control Strategy of Valve-controlled Asymmetric Cylinder Based on Variable Fuzzy PID Controller

作　　者：蒲虹云 蒋刚 郝兴安[1] 邹海锋 刘思颂[1] 陈清平 徐文刚 PU Hong-yun;JIANG Gang;HAO Xing-an;ZOU Hai-feng;LIU Si-song;CHEN Qing-ping;XU Wen-gang(School of Mechanical and Electrical Engineering,Chengdu University of Technology,Chengdu,Sichuan 610051;Chengdu Lingchuan Special Industry Co.,Ltd.,Chengdu,Sichuan 610100)

机构地区：[1]成都理工大学机电工程学院,四川成都610051 [2]成都陵川特种工业有限责任公司,四川成都610100

出　　处：《液压与气动》2022年第11期82-89,共8页Chinese Hydraulics & Pneumatics

基　　金：四川省科技计划重点研发项目(2021YFG0075,2021YFG0076,2022YFG0347);四川省科技计划重点项目(2021JDKP0075);四川省重大科技专项(2020ZDX0019)。

摘　　要：针对非对称液压缸正反向运动的不对称性对位移控制精度的影响,为了提高阀控非对称液压缸伺服系统位移控制精度,设计了根据液压缸运动方向选择对应模糊PID位移控制器的位移闭环及速度前馈复合控制方案。搭建了基于ADAMS,AMESim和Simulink的阀控非对称液压缸伺服系统联合仿真模型。研究表明,采用速度前馈控制系统响应更快;采用对应变模糊PID位移控制器控制策略,非对称缸换向跟踪期望位移的精度更高。In view of the influence of the asymmetric forward and reverse motion of the asymmetric hydraulic cylinder on the displacement control accuracy,for the purpose of improving the displacement control accuracy of the valve-controlled asymmetric hydraulic cylinder servo system,a compound control scheme of displacement closed-loop and velocity feed-forward based on fuzzy PID displacement controller is designed.A co-simulation model of valve-controlled asymmetric hydraulic cylinder servo system based on ADAMS,AMESim and Simulink is built.The simulation study shows that the speed feed-forward control system has faster response;The accuracy of the expected displacement tracking of asymmetric cylinder is higher by adopting the control strategy of fuzzy PID displacement controller.

关 键 词：阀控非对称缸 速度前馈 模糊控制 联合仿真 

分 类 号：TH137[机械工程—机械制造及自动化] TP242[自动化与计算机技术—检测技术与自动化装置]