基于列控车载设备制动曲线的高速列车牵引计算平台

为了检算铁路客运专线闭塞分区长度与列控系统的符合性,设计基于列控车载设备制动曲线的高速列车牵引计算平台。采用HTML,CSS,JavaScript,Vue.js,Node.js和Koa等Web技术进行开发,使用MySQL作为后端数据库,构建B/S架构应用平台,包括基础数据处理、列车运行仿真、列车追踪间隔时间计算、闭塞分区检算和统计分析5个功能模块。其中,列车运行仿真模块为牵引计算平台的核心,由线路信息、列车动力学模型、列控车载设备制动曲线算法和速度控制组成;列控车载设备制动曲线算法具备列车超速防护功能,根据移动授权和列车速度距离信息生成允许速度和制动指令,实现列车运行仿真的闭环处理。选取京沪高速铁路列控工程数据和CRH3A型动车组参数进行列车牵引计算,得到高速铁路列车追踪间隔时间,验证闭塞分区设计长度满足列控车载设备制动距离要求。结果表明:该平台可用于闭塞分区长度符合性检算,从而验证闭塞分区设计与列控系统的匹配性。

Traction Calculation Platform of High-Speed Train Based on Braking Curve of Train Control Onboard Equipment

A traction calculation platform of high-speed train based on the braking curve of train control onboard equipment is designed for the compliance verification between block section length and train control system on railway passenger dedicated line.The web technologies,such as HTML,CSS,JavaScript,Vue.js,Node.js and Koa,are used to develop the B/S structure application platform,where the MySQL is used as the back-end database.The platform is divided into five functional modules,i.e.,the basic data processing,the train operation simulation,the train tracking headway calculation,the block section validation and the statistical analysis.Particularly,the train operation simulation module is the core of the traction calculation platform,which is composed of infrastructure data,train dynamics model,the braking curve algorithm of train control onboard equipment and speed control.The braking curve algorithm of train control onboard equipment has the function of train overspeed protection,which generates the permitted speed and brake command according to the information of the movement authority and the train speed distance to realize the closed-loop processing of train operation simulation.The train control engineering data of the Beijing-Shanghai high-speed railway and CRH3A EMU parameters are selected for train traction calculation and the train tracking headway of high-speed railway is obtained,and the design length of block section is proved to meet the braking distance requirements of train control onboard equipment.Results show that the platform can be applied to the length compliance verification of block section and validating the matching between block section design and train control system.