重载组合列车分布动力机车重联控制系统无线传输同步性研究  

Research on the Wireless Transmission Synchronization of the Coupling Control System for Heavy Haul Combined Train and Distributed Power Locomotive

作　　者：李蔚[1] 陈特放[1,2] 李辉[3] 雷满生 

机构地区：[1]中南大学交通运输工程学院,湖南长沙410075 [2]中南大学信息科学与工程学院,湖南长沙410083 [3]中国铁道科学研究院通信信号研究所,北京100081 [4]株洲南车时代电气股份有限公司技术中心,湖南株洲412001

出　　处：《中国铁道科学》2011年第6期102-106,共5页China Railway Science

基　　金：国家自然科学基金资助项目(60674003);国家"八六三"计划项目(2009AA11Z217)

摘　　要：为提高重载组合列车各重联机车无线控制的同步性能,基于800MHz无线电空间波无线传输模式,建立重载组合列车分布动力机车重联控制无线传输同步性的马尔可夫决策模型,并采用有限阶段向后递归迭代算法进行求解。利用给出的决策模型和算法构建重载组合列车分布动力机车重联无线同步控制系统,并安装于神华线万吨重载组合列车的机车上进行测试。测试结果表明:机车间重联信息无线传输的平均周期仅为2.5s,小于美国GE公司LOCOTROL系统3s的平均周期,能够满足神华线重载组合列车运行的基本要求;采用800MHz双频点组成双网传输,在无线电波弱场区能克服空间波传输受到干扰的影响,减少延迟时间。In order to improve the wireless control synchronization performance of each coupling locomotive for heavy haul combined train,based on 800 MHz radio space wave wireless transmission mode,the wireless transmission synchronization Markov decision programming model of the coupling control system for heavy haul combined train and distributed power locomotive was established.The finite horizon backward recursive iterative algorithm was adopted to solve it.The given decision-making model and algorithm were used to build the coupling wireless synchronous control system for heavy haul combined train and distributed power locomotive,which was installed on the locomotive of 10 000 t heavy haul combined train on Shenhua Line to carry out tests.Test results show that the average period of the wireless transmission of the coupling information for locomotives is only 2.5 s,which is less than that of the LOCOTROL system of US GE Company,whose average period is 3 s.The average period of the system can meet the basic requirements for the operation of heavy haul combined train on Shenhua Line.The dual-network transmission set up by 800 MHz dual-band can overcome the influence caused by the interference of space wave transmission in the weak field of radio wave and reduce the delay time.

关 键 词：重载组合列车 动力分布 机车重联 无线传输 同步控制 马尔可夫决策 

分 类 号：U260.36[机械工程—车辆工程]