摘要随着我国高速铁路的快速发展，AT供电系统越发显示出较其他供电方式的优点，如较长的供电距离，较低损耗的牵引网电压，对通信线路造成的干扰较小等。本文首先研究了电气化铁路的三种供电制式以及主变压器的接线方式。其次就是对AT供电系统的原理、优点及其组成进行了分析，由此对AT供电系统有了一个全面的认知。

列车的安全运行是高速铁路整个系统中最重要的一点，如果这一点的要求无法达到，那么高速铁路自然就没有存在的理由。因此，可靠安全的牵引供电系统是能够让列车安全运行的基础。由于牵引供电系统的重要性，所以本文中又着重分析了AT牵引网网络阻抗的计算方法，而后基于传统AT牵引供电的保护，对高速铁路AT供电系统又进行了更为细致的研究，并对其馈线、变压器和AT分区所等的保护及整定原则进行阐述。75962

该论文有图17幅，参考文献22篇。

毕业论文关键词：AT供电系统  牵引网阻抗  保护配置  整定原则

The Configuration and Setting of Relay protection of High speed railway AT power supply system

Abstract With the rapid development of China's high-speed railway,AT power supply system shows more advantages than other power supply,such as the long distance of  power supply ,small loss of traction network voltage ,small interference of communication , etc。 In this paper, the three types of power supply system and the connection mode of main transformer are studied firstly。The second is the principle , advantages and composition of AT power supply system are analyzed,and have a comprehensive understanding of the AT power supply system。 

 The safe operation of high-speed rail train is the reason the whole system is the most important point, if this requirement can not be met, then the high-speed rail would not naturally exist。 Therefore, reliable and safe traction power supply system is the foundation that allows the safe operation of trains。In this paper,because of the importance of the traction power supply system ,the calculation method of AT traction network impedance is emphatically analyzed,and then on the basis of traditional AT traction power supply,AT power supply system of high-speed railway has carried out a more detailed study,the feeder protection and transformer protection configuration of AT power supply system of high speed railway are analyzed,and expounds the setting principle of the protection。

There are 17 figures and 22 references in this paper。

Key Words:AT power supply system  Traction network impedance  Protection configuration  Setting principle

目 录

摘  要 I

Abstract II

目录 III

1 绪论 1

1。1 高速铁路的发展 1

1。2 电气化铁路的发展及AT供电系统的应用 1

1。3 本课题的研究背景以及主要内容 3

2 AT供电系统的组成、原理及其供电方式 4

2。1 电气化铁路的供电方式及其接线方案 4

2。2 AT供电系统的组成 8

2。3 牵引供电系统的供电方式及AT供电方式的原理和特点 10

3 AT牵引网阻抗 17

3。1 AT网络的等值电路 17

3。2单线区段AT牵引网的阻抗 20