基于牵引供电系统的电力供电方案对比研究

发布时间：2018-01-29 03:59

本文关键词： 铁路电力供电方案牵引供电系统交直交电源设备供电质量对比　出处：《西南交通大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着铁路的不断发展,电气化铁路与电力系统的联系也越来越紧密。铁路沿线分布着通信系统、信号系统等不同类型的非牵引负荷,其电力供电方案直接关系到行车安全、运营费用和建设投资。由于电力负荷的用电问题缺乏深入的研究和足够的重视,这样就使电力负荷用电困难或得不到经济合理的解决。电气化铁路的快速发展,为合理利用牵引供电系统为沿线负荷提供电源提供了技术平台。面对技术全球化的趋势,我国要积极借鉴、吸纳国外先进技术,加大我国高铁的优势,推动中国高铁又快又好地"走出去",在服务"一带一路"战略中发挥更大的作用。因此借鉴国外电气化铁路成功的经验,提出多种适用于铁路的由牵引供电系统取电的电力供电方案,来优化和完善铁路的电力供电系统,不论是对铁路系统还是电力系统都有着重大深远的现实意义,需要进行系统的研究。本文对电气化铁路电力系统现状进行了调研,总结出多种利用牵引供电系统为铁路沿线电力负荷供电的电力供电方案:接触网取电分布式供电方案、牵引变电所取电分布式供电方案、交直交电源设备集中式供电方案、变电所与牵引变电所合建方案;对以上电力供电方案的工作原理和特点进行初步分析,并确定需要进一步研究的问题;根据某高速铁路数据,运用Matlab/Simulink仿真软件,建立了牵引供电系统、动车组、交直交电源设备、电力贯通线、电力负荷的模型,组成了各方案的仿真模型,分析结果得出供电质量;从供电质量、对牵引供电系统的影响、可靠性和运行维护工作、投资成本方面进行综合对比,得出各方案的特点及适用场合。
[Abstract]:With the development of railway, the relationship between electrified railway and power system is more and more close. There are different types of non-traction load such as communication system and signal system along the railway. Its power supply scheme is directly related to driving safety, operating expenses and construction investment. Due to the lack of in-depth research and sufficient attention to the power load problem. In this way, the power load is difficult to use or can not be solved economically and reasonably. The rapid development of electrified railway. It provides a technical platform for the rational use of traction power supply system to provide power supply for load along the line. Facing the trend of technology globalization, our country should actively draw lessons from foreign advanced technologies and increase the advantages of high-speed rail in our country. Promoting China's high-speed railway to "go out" quickly and well, and play a greater role in serving the "Belt and Road" strategy. Therefore, draw lessons from the successful experience of foreign electrified railways. To optimize and perfect the power supply system of railway, it is of great practical significance to optimize and perfect the power supply system of railway, both for railway system and power system. This paper investigates the current situation of electrified railway power system. This paper summarizes a variety of power supply schemes which use traction power supply system to supply electric load along railway line: catenary power distributed power supply scheme, traction substation power distributed power supply scheme. AC-DC power supply equipment centralized power supply scheme, substation and traction substation construction plan; The working principle and characteristics of the above power supply scheme are analyzed preliminarily, and the problems that need further research are determined. According to the data of a high speed railway, the models of traction power supply system, EMU, AC DC power supply equipment, power transmission line and electric load are established by using Matlab/Simulink simulation software. The simulation model of each scheme is made up, and the power supply quality is obtained by analyzing the results. From the aspects of power supply quality, influence on traction power supply system, reliability, operation and maintenance work and investment cost, the characteristics and applicable situation of each scheme are obtained.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U223

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