动车组重联网络控制系统时延预测及补偿  

Time-delay prediction and compensation of EMU coupling network control system

作　　者：刘洋 李常贤 陈龙 LIU Yang;LI Changxian;CHEN Long(Mordern Railway Transportation Research Institute,Dalian Jiaotong University,Dalian 116028,China;School of EMU Application and Maintenance Engineering,Dalian Jiaotong University,Dalian 116028,China;CRRC Dalian Co.,Ltd,Dalian 116022,China)

机构地区：[1]大连交通大学现代轨道交通研究院,辽宁大连116028 [2]大连交通大学动车运用与维护工程学院,辽宁大连116028 [3]中车大连机车车辆有限公司,辽宁大连116022

出　　处：《铁道科学与工程学报》2018年第12期3044-3049,共6页Journal of Railway Science and Engineering

基　　金：中国铁路总公司科技研究开发计划项目(2015J007-D)

摘　　要：重联动车组之间利用UIC网关的过程数据编组传输监控数据,数据在重联通信网络上的传输时延影响重联控制的性能。针对这一问题,构建动车组重联网络控制系统简化模型,采用网络时延的自回归AR模型,通过Yule-walker参数自辨识算法根据历史数据对网络时延进行在线预测,同时利用快速隐式广义预测控制IGPC对预测的时延进行补偿。仿真实验结果表明,该方法具有较高的时延预测精度,且对网络时延有较好的补偿效果,可保证良好的控制效果。UIC gateway uses its function of process data marshalling to transmit control and monitoring data between coupling EMUs.There will be time-delay in the process of monitoring data transmission on the train coupling communication network.The network time-delay can deteriorate the coupling control performance.In order to solve this problem,simplified model of networked control system was established with respect to coupling EMU.The time-delay auto regressive(AR)model was established,and Yule-walker parameter self-identification algorithm was used for time-delay online prediction according to historical data.At the same time,fast implicit generalized prediction control was used for compensating predictive time-delay.Simulation results show that this method has high prediction accuracy,a good effect on time-delay compensation and can ensure the good control effect.

关 键 词：动车组 重联网络控制 UIC网关 时延预测 隐式广义预测控制 

分 类 号：U258.4[交通运输工程—道路与铁道工程] TP273[自动化与计算机技术—检测技术与自动化装置]