液压滚切剪电液伺服协同控制研究  

Electro-hydraulic Servo of Cooperative Control Research for Hydraulic Slitting Shear

作　　者：李宏杰[1] 朱士伟[1] 黄庆学[1] 张伟[1] 

机构地区：[1]太原科技大学重型机械教育部工程研究中心,山西太原030024

出　　处：《仪表技术与传感器》2014年第6期99-102,共4页Instrument Technique and Sensor

基　　金：国家973重点基础研究计划基金项目(2011CB612204);国家青年科学基金(51205269);博士基金(20132009)

摘　　要：以中厚板液压滚切剪为研究对象,在重点分析2个AGC系统在不同工况下的运行特点的基础上,提出了电液伺服系统的协同控制策略。首先建立了液压滚切剪电液伺服系统的数学模型;其次针对液压滚切剪电液伺服控制系统的非线性、抗干扰性弱和时变等弱点,选择基于模糊PID控制的双闭环控制结构,完成了2个AGC控制回路之间的系统耦合误差动态分配,实现系统协同运动控制;最后对双缸协同运动控制系统完成了动态试验,试验结果表明系统的响应速度快,同时具有较好的位移协同运动性能。Using the hydraulic slitting shear plate as the research object,based on the analgsis of the operation characteristics of two AGC system under different working conditions,we put forward the coordinated control strategy of electro-hydraulic servo system.Firstly,the hydraulic slitting shear was established by the mathematical model of electro-hydraulic servo system.Secondly for the hydraulic slitting shear electro-hydraulic servo control system was of nonlinear,time-varying and weak anti-jamming weaknesses,we chose double closed-loop control structure based on fuzzy PID control,completed coupling error dynamic allocation between the two AGC control circuit system and realized coordinated motion control.Finally,the dynamic test of the two cylinder coordinated motion control system was finished.The results show that the system has response speed and good displacement synergy sports performance.

关 键 词：液压滚切剪 AGC 电液伺服 双闭环 协同控制 模糊PID 

分 类 号：TG333[金属学及工艺—金属压力加工]