电液伺服泵控系统柔性传动比理论研究  

Flexible Transmission Ratio Theory of Electro-hydraulic Servo Pump Control System

作　　者：李渊 艾超 闫桂山[1] 张天贵 陈革新 贾春玉[1] 陈文斌 LI Yuan;AI Chao;YAN Gui-shan;ZHANG Tian-gui;CHEN Ge-xin;JIA Chun-yu;CHEN Wen-bin(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004;Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Qinhuangdao,Hebei 066004;Key Laboratory of Advanced Forging&Stamping Technology and Science(Yanshan University),Ministry of Education of China,Qinhuangdao,Hebei 066004;School of Mechanical and Electrical Engineering,Xinjiang Institute of Engineering,Urumqi,Xinjiang 830023)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]河北省重型机械流体动力传输与控制实验室,河北秦皇岛066004 [3]燕山大学先进锻压成形技术与科学教育部重点实验室,河北秦皇岛066004 [4]新疆工程学院机电工程学院,新疆维吾尔自治区乌鲁木齐830023

出　　处：《液压与气动》2021年第11期10-17,共8页Chinese Hydraulics & Pneumatics

基　　金：河北省重点研发计划(20314402D);新疆维吾尔自治区自然科学基金面上项目(2021D01A63);河北省高等学校科学技术研究重点项目(ZD2020166,ZD2021340)。

摘　　要：电液伺服泵控系统具有高效节能、高功重比和环境友好等技术优点,但受诸多非线性因素的影响,系统传动特性表现出极强的非线性。通过深入研究电液伺服泵控系统的传动特性,提出柔性传动比理论,建立电液伺服泵控系统的数学模型,得到伺服电机-定量泵-液压缸之间的柔性传动比规律。对柔性传动比应用进行研究,提出基于广义排量的压力控制策略。搭建系统柔性传动比仿真与试验平台,对柔性传动比理论应用进行仿真和试验研究。研究结果表明,柔性传动比理论的应用对压力控制具有良好的控制效果,将为电液伺服泵控系统的工程推广与应用奠定良好的基础。The electro-hydraulic servo pump control system has the technical advantages of high efficiency and energy saving,high power to weight ratio and environmental friendliness,but the system is affected by many nonlinear factors,and the transmission characteristics of the system show strong nonlinearity.Through the in-depth study of the transmission characteristics of the electro-hydraulic servo pump control system,the theory of flexible transmission ratio is put forward.The mathematical model of electro-hydraulic servo pump control system is established,and obtains the law of flexible transmission ratio among servo motor,quantitative pump and hydraulic cylinder.To study the application of flexible transmission ratio,and the pressure control strategy based on generalized displacement is proposed.The research of the flexible transmission ratio theoretical application is carried out with the simulation and test platform of flexible transmission ratio which is built.The results show that the application of flexible transmission ratio theory has good control effect on pressure control,which will lay a good foundation for the engineering promotion and application of electro-hydraulic servo pump control system.

关 键 词：电液伺服泵控系统 柔性传动比 广义排量 压力高精度控制 

分 类 号：TH137[机械工程—机械制造及自动化]