Research on Delay Mechanism and Compensation of Electronic Gearbox in Networked Control System

摘要：

　　According to the gear processing numerical control system based on network,the generation mechanism of network induced delay and its influence on the control performance were analyzed.Under different conditions of feedback delay and control instruction delay,it is found that the steady state error of the network control system is proportional to the target velocity and the position feedback delay and is less affected by the delay of control instruction when tracking the constant speed trajectory.On the basis of execution timing sequence of the sensor,actuator and controller in the numerical control system,a feedback output compensation method is proposed.Considering the influence of network induced delay on the control precision of EGB,an EGB generative control error model of networked CNC is established.The effect of the proposed compensation method on the control precision of EGB is analyzed by simulation and experiment.The results show that the proposed compensation strategy can effectively eliminate the control error caused by the induced delay and improve the control precision of the EGB.

关键词： Fieldbus based numerical control system Electronic gearbox Network induced delay Feedback compensation

作者: HAN Jiang ZHU Yonggang XIA Lian WU Lulu

作者单位: School of Mechanical Engineering,Hefei University of Technology,Hefei,China

会议类型: 国际会议

会议名称: 第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))

会议地点: 深圳

会议语种:英文

页码: 1-11

在线出版日期: 2017-11-23（万方平台首次上网日期，不代表论文的发表时间）