基于模糊PID控制策略的液压缸试验台设计  

Design of Hydraulic Cylinder Test Bench Based on Fuzzy PID Control Strategy

作　　者：张增宝 李世振 刘延俊[1,2,3] 徐子杰 牛国栋 吉晨 ZHANG Zeng-bao;LI Shi-zhen;LIU Yan-jun;XU Zi-jie;NIU Guo-dong;JI Chen(Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237;School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061;Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Jinan, Shandong 250061;Jinan Ruiyuan Hydraulic Pneumatic Equipment Co. , Ltd. , Jinan, Shandong 250300)

机构地区：[1]山东大学海洋研究院,山东青岛266237 [2]山东大学机械工程学院,山东济南250061 [3]山东大学高效清洁机械制造教育部重点实验室,山东济南250061 [4]济南瑞原液压气动设备有限公司,山东济南250300

出　　处：《液压与气动》2020年第5期27-32,共6页Chinese Hydraulics & Pneumatics

基　　金：国家重点研发计划(2018YF2000903);山东省重点研发计划(2018GHY115006);山东省自然科学基金青年基金(ZR2017QEE001)。

摘　　要：为了满足液压缸尺寸范围大的测试要求,设计了综合性能测试实验台。油源系统采用双泵容积调节供油回路,加载系统采用比例溢流阀加载,搭建了基于上下位机的测控系统及基于LabVIEW的数据采集系统。为满足换向压力稳定性要求,设计了模糊PID的压力控制器,为满足速度需求,速度控制器采用给定速度积分生成期望位移,基于速度前馈的模糊PID位移控制策略来保证运行速度。结果验证了模糊PID控制在耐久性试验中的有效性,同时满足试验台对压力、速度跟踪性能要求。To meet the test requirements of large size range of hydraulic cylinders,we design a comprehensive performance test bench,its oil source system adopt double pump to adjust the oil supplying and the proportional relief valve is adopted in the loading system.Then,we build a measure and control system based on the host/master computer and a data acquisition system based on LabVIEW.In order to meet the requirements of pressure and speed stability,we design a fuzzy PID pressure controller,and design a fuzzy PID displacement/speed controller based on speed feedforward and its expected displacement is generated by a given speed integral.The results show that the fuzzy PID controllers are effective in the durability test and can meet the test bench's performance requirements of pressure and speed tracking stability.

关 键 词：液压缸 试验台 模糊控制 速度前馈 

分 类 号：TH137[机械工程—机械制造及自动化]