【作者】 屈志坚；

【导师】 刘明光；

【作者基本信息】 北京交通大学 ， 电气工程， 2012， 博士

【摘要】 摘要：铁道电网是现代铁路,特别是高速铁路的重要组成部分,铁道电网的安全运行很大程度取决于调度监控信息流的通畅和高效处理。随着我国高速铁路大规模建设,自动化设备改造,以及IEC61970国际标准的推广和应用,铁道供电调度监控需要研究和解决的主要问题是：(1)公共信息流的传输和处理量越来越大,造成信息拥堵延迟,需要研究信息延时问题。(2)由于铁道供电信息要供多个专业应用,量测值存取次数频繁、要求精度高,运行中存取操作反应慢,有时甚至死机,需要解决大数据集信息压缩处理问题。(3)铁道电网总体呈链式、局部含环形结构,运行方式灵活,需要研究适应性好的快速拓扑算法,解决运行方式的在线监测问题。(4)针对自动化系统改造工程中应用信息集成难的现状,需要研究交互接口信息流,提高交互效率和设备兼容性,解决接口集成问题。为了深入研究,将铁道电网信息归类整理为：公共信息流、量测值存取信息流、运行方式监测信息流和交互接口信息流,提出了柔性技术及相关定义。采用Monte Carlo和LHS-MC新方法,对公共信息流进行统计试验研究,找到了信息延迟时间的概率分布和置信区间。采用集群变断面压缩方法,对量测值存取信息流进行研究。通过变断面压缩存取方法进行大比例压缩存取；应用Hadoop集群和Map/Reduce引擎进行分布式集群压缩,并通过实验和工程应用对压缩量和压缩率进行了验证。采用源流链算法、元胞自动机算法和图矩阵寻迹算法,对铁道电网运行方式监测信息流进行研究。源流链算法空间复杂度降为O(17n),计算时间降为ms级；元胞自动机算法空间复杂度降为O((2c+4)n),克服了传统算法解环困难和维数灾问题；图矩阵寻迹算法的效率提高约50%,解决了多态拓扑问题。采用P/S-R回调方法和智能联盟方法,对交互接口信息流进行研究。P/S-R回调方法融合了发布/订阅与远程方法调用,通过消息的发布、订阅和回调,使状态变位的处理时间减少了2个数量级；智能联盟方法利用消息事件进行松散耦合交互传递,使批量信息的处理时间减少了70%,解决了铁道供电调度自动化系统中传统交互接口效率低、紧密耦合、集成困难的问题。本文技术已投入到陇海线调度监控系统、郭家窑变电所监测与管理系统中,成功解决了应用信息集成、大数据集压缩存取及运行方式监测等问题,效果良好。更多还原

【Abstract】 ABSTRACT:Railway power network is an important part of modern railway, especially high-speed railway, and safe operation of railway power network depends on high efficiency of dispatching and monitoring information flow.With large-scale construction of high-speed railroad, transformation of automation equipment, and promotion application of IEC61970international standard, railway power network dispatching monitoring system need to study and solve problems, which are as follows:(1) Information quantity of transport and processing becomes increasingly great in common information flow, which causes jams, and need to solve the delay problem.(2) Railway power network information is used for different professional, measurement value is accessed frequently, and require good precision, which are difficulties to operation, reaction progresses slowly and even dead halt, so it is need to solve big data set compressed processing problem.(3) Railway power network is chain structure in general, but including ring structure in local, which has flexible operation mode, so it is need to study rapid topology algorithm, which is strong adaptability, and to solve operation mode monitoring problem.(4) It is need to study interaction and interface information flow for application information of railway power network automated system engineering applications, to improve the interactive efficiency and equipment compatibility, and to resolve the interface integrated problem.Railway power network information is placed in order to common information flow, measurement value access information, operation mode monitoring information flow and interaction interface information flow, and relevant definitions of flexible technology are proposed.Monte Carlo and LHS-MC new ways are used to statistical study for common information flow, which is to found information the probability distributions and the confidence interval of delay time.Cluster variety section compression method is used to study measured value access information flow. Variety section compression method is used for large proportion of compression access; Hadoop cluster and Map/Reduce engine are used for distributed cluster compression, and compression rates is testified by experiment and engineering application.Operation mode monitoring information flow is studied using source-flow chain algorithm, cellular automata algorithm, and graph matrix tracking algorithm. Space complex degrees of source-flow chain algorithm is declined to O(17n), and computing time is declined to ms level; Space complex degrees of cellular automata algorithm is declined to O((2c+4)n), and overcome difficulties of traditional approach; Graph matrix tracking algorithm efficiency is increased about50%and solves polymorphism topology problem.P/S-R callback method and agent alliance method are used to study interaction interface information flow. P/S-R callback method is fused from publish/subscribe and remote method invocation, which reduces processing time enormously for state change; Agent alliance method is looser coupling interaction, which reduces processing time by70%, and solves interfacing inefficient, integration difficulties of railway power network automation system.This technology has been put into use in longhai railway dispatching monitoring system, guojiayao substation monitoring and management system, which have successfully resolved information integrated application, large datasets compression access and operation mode monitoring, and its application effect is good.更多还原