论文标题:城市轨道交通信号系统关键技术研究
Research on Key Technologies of Urban Rail Transit Signaling System
论文作者 白鑫
论文导师 王长林,论文学位 硕士,论文专业 交通信息工程及控制
论文单位 西南交通大学,点击次数 169,论文页数 92页File Size4264k
2003-06-18论文网 http://www.lw23.com/lunwen_79849682/ ATC,数字轨道电路,准移动闭塞,移动闭塞
ATC;coded digit track circuit;moving-block signaling system;quasi-moving-block signaling system
城市轨道交通具有快速、便捷、大运量的特点。信号系统是确保城市轨道交通列车运行安全及提高运营效率的关键设备。本文详细讨论了应用于城市轨道交通的先进的信号系统——列车运行自动控制系统(ATC)的组成和结构，对其三个子系统：列车自动监控系统ATS、列车自动保护系统ATP、列车自动运行系统ATO的功能和分类进行了详细分析和比较。在此基础上，针对当前应用广泛的基于数字轨道电路的准移动闭塞ATC系统进行了重点分析，详细讨论了数字轨道电路的原理、准移动闭塞系统的列控方式等内容，并对准移动闭塞下的最小列车追踪间隔时间进行了理论计算和分析，给出了数字轨道电路长度的推荐值。 城市轨道交通的迅速发展要求对轨道电路的特性有深入的了解。本文采用MATLAB软件模拟轨道电路的传输特性，对轨道电路在正弦交流输入下的稳态响应进行了仿真，得到了相应的的仿真结果和曲线图。 移动闭塞是城市轨道交通信号系统的发展方向。本文讨论了基于通信的移动闭塞信号系统的原理、典型结构和实现方式。在此基础上，对广州地铁四号线信号系统的选择进行了探讨，指出了广州地铁四号线直线电机运载系统采用移动闭塞技术的必要性和可行性。 列车运行图和运营时刻表是城市轨道交通行车组织的工作计划和基础。本文最后对ATS子系统中的时刻表和运行图管理模块进行了分析，并初步实现了地铁列车时刻表的自动编制和运行图绘制功能。
Urban rail transit system is characterized by its high-speed, convenience and large carrying capacity. Signaling system, the control equipment of urban rail transit system for drive direction and train movement, plays the important role in ensuring the drive safety, enhancing the transport efficiency and is one of key technologies of the rail transit system. This paper describes the components and structure of advanced signaling system: Automatic Train Control system (ATC), analyzes the function and classification of its three subsystems: ATS, ATP and ATO, with emphasis on currently widely adopted ATC system-Quasi-Moving-Block signaling system, which works on coded digit track circuit, and discusses the operating principles of coded digit track circuit and the features of train control of Quasi-Moving-Block signaling system. It also calculates theoretically the minimal time interval between two trains in quasi-moving-block signaling system and recommends approximate values for the length of coded digit track circuit.The rapid development of urban rail transit demands a deep understanding on the features of track circuit. In this paper, the study method is adopted for employing MATLAB to simulate the transition feature of track circuit, the steady-state response of track circuit is simulated when the alternative sine wave signal is inputted, and the corresponding results are interpreted.Moving-block signaling system indicates the development tendency of urban rail transit signaling system. The paper examines the principles of communication based moving-block signaling system, its typical structure and its practical methods. Then it discusses the signaling system in Guangzhou Metro Line No.4 and points out the necessity and possibility of adopting the moving-block signaling technology for its linear motor carrying system.Train graph and timetable are the working plan and foundation for train operation management. In the last part, the paper makes an analysis of the modules of train working diagram and timetable of the ATS system and achieves the aim of automated train scheduling for subway.
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