基于模糊PID控制策略的液压缸试验台加载系统设计

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英文篇名：Design of loading system for hydraulic cylinder test-bed based on fuzzy PID control strategy 作者：张兆东 ; 徐小亮 ; 杨杨 ; 张鸿鹄 ; 陆宝春 英文作者：Zhang Zhaodong;Xu Xiaoliang;Yang Yang;Zhang Honghu;Lu Baochun;School of Mechanical Engineering,Yangzhou Vocational University;School of Mechanical Engineering,Nanjing University of Science and Technology;Yangzhou Jiangdu Yongjian Co.,Ltd.; 关键词：液压缸试验台 ; 控制精度 ; 模糊比例积分微分控制策略 ; 建模与仿真 英文关键词：hydraulic cylinder test-bed;;control accuracy;;fuzzy proportional integral differential control strategy;;modeling and simulation 中文刊名：NJLG 英文刊名：Journal of Nanjing University of Science and Technology 机构：扬州市职业大学机械工程学院;南京理工大学机械工程学院;扬州市江都永坚有限公司; 出版日期：2019-03-13 13:23 出版单位：南京理工大学学报 年：2019 期：v.43;No.224 基金：江苏省科技成果转化项目(BA2014130);; 江苏省产学研前瞻性联合研究(BY2016004-06) 语种：中文; 页：NJLG201901011 页数：8 CN：01 ISSN：32-1397/N 分类号：82-89

摘要

将某种新型液压缸综合性能试验台的加载系统作为研究对象,针对其易受外界干扰导致加载力不稳定、精度低的问题,提出了一种基于模糊比例积分微分(Proportional integral differential,PID)控制策略的试验台加载控制方法。首先根据试验台的结构特征与被动控制理论,构造位置系统与加载系统的联合控制模型,然后利用MATLAB软件仿真位置系统影响下的输出加载力,得到控制精度的影响因素。最后将模糊PID控制策略添加到原有的试验台加载系统控制模块中,使其能够动态调节控制器的参数,有效提升了输出加载力的响应速度,缩短了响应时间。
        The loading system of a hydraulic cylinder comprehensive performance test-bed is taken as the research object in this paper and a loading control method based on fuzzy proportional integral differential(PID)control strategy is proposed to solve the problem that the loading system is unstable and inaccurate due to the external interference. Firstly,the joint model of displacement system and loading system is obtained according to the structural characteristics of the test-bed and the theory of passive control. The influencing factors of the control precision are obtained by using MATLAB to simulate its output loading force under the influence of the displacement system. By adding the fuzzy PID control strategy to the original system,it can adjust its PID control parameters dynamically,effectively improve the response speed of loading force,and shorten the response time.

引文

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