臂架液控系统非线性时滞动态补偿技术研究  

Research on Nonlinear Time Delay Dynamic Compensation Technology for Arm Frame Hydraulic Control System

作　　者：夏继军[1,2] XIA Jijun(College of Remote Sensing and Information Engineering,Wuhan University,Wuhan Hubei 430079,China;School of Mechanical and Electrical Engineering,Huanggang Polytechnic College,Huanggang Hubei 438002,China)

机构地区：[1]武汉大学遥感信息工程学院,湖北武汉430079 [2]黄冈职业技术学院机电学院,湖北黄冈438002

出　　处：《机床与液压》2018年第16期96-98,共3页Machine Tool & Hydraulics

基　　金：湖南省教育厅科学研究青年项目(15B156)

摘　　要：针对泵车臂架电液控制系统的非线性时滞问题,提出基于一种时间序列法的时滞补偿算法。该算法首先需要记录臂架末端的原始振动位移,根据这些历史数据,采用时间序列法对后续臂架振动姿态进行预测,根据预测结果,对系统中可能存在的非线性时滞进行动态补偿,从而为系统后续的运动轨迹提供有效参考,确保在后续运动时,为系统提供准确的臂架阀控缸位置信息和速度控制信息。通过实验验证,该方法有效可行,动态补偿效果好,其研究成果将会应用到十三五规划项目中。A time delay compensation algorithm was proposed to solve the nonlinear time delay problem of the electro-hydraulic control system of the truck boom.The original vibration displacement of the boom end was needed to record.According to the historical data,time series method was used to predict the subsequent arm frame vibration attitude.According to the prediction results,nonlinear time delay may existed in the system was compensated dynamically.It provided effective reference trajectory for the system,to ensure that accurate arm valve controlled cylinder position and speed information could be provided for the system in the follow-up motion.The experimental results show that the method is effective and feasible,and the dynamic compensation effect is good.The research results will be applied to the 13th Five-Year planning projects.

关 键 词：臂架液控系统 非线性时滞 动态补偿算法 时间序列法 

分 类 号：TU646[建筑科学—建筑技术科学]