能馈式牵引供电装置在地铁供电中的应用研究

针对以上情况,本文描述了一种新型供电系统——能馈式牵引供电系统。该系统采 用三相电压型 PWM 整流器作为变流单元,根据能量流动需要在整流、逆变工况间切换, 可将多余的再生制动能量回馈至交流电网。本文描述了该系统的结构、功能、特点和工 作原理,着重从交流侧谐波、直流侧特性两方面对系统展开应用研究。同时结合该系统 在广州地铁已运营线路上安装、试验和运行的实际数据，对该系统的稳定性和节能性能 进行评估及验证。 关键词：能量反馈；牵引供电；地铁；应用
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目录
摘 要.........................................................................................................................................I ABSTRACT .............................................................................................................................. II 第一章 绪论.............................................................................................................................. 1
1.1 选题背景和研究意义...................................................................................................... 1 1.2 研究目标及内容.............................................................................................................. 2 第二章 城市轨道交通供电系统的组成与功能...................................................................... 4 2.1 基本组成与功能.............................................................................................................. 4
摘要
随着经济的发展，城市交通拥挤状况越来越严峻，严重影响人们的日常工作和生活。 地铁作为一种低能耗、低污染、高效率的运输方式,在世界各国的大中型城市都得到了 广泛的应用。它因为具有速度快、站距短、起制动频繁等特点，已成为解决城市快速交 通的有效方式。地铁中普遍运用到直流牵引供电系统采用的是二极管整流器,电能只能 从交流电网向直流牵引网单向流动。当车辆制动时,多余的再生制动能量使直流电网电 压升高。传统的解决方法是设置电阻制动装置,这就造成两个问题。第一个问题是无法 有效利用制动能量。第二个问题是,由于目前地铁中主要使用晶闸管和二极管两种整流 方式,这样的整流方式等于向电网注入了大量谐波和无功功率,会引起网侧电流畸变,甚 至严重影响电力系统的电能质量。
For above, this text described a kind of new power supply system-the energy-fed traction power system.That system adopt three mutually the electric voltage type the PWM commutate the machine conduct and actions to change to flow unit, needing according to the energy fluxion at commutate,go against to change the work condition cut over, can surplus of the rebirth system amount of kinetic energy give something back to AC network.This text described the structure,function,characteristics and the work principle of that system, emphasizing to launch application study to the system from the exchanges side harmonic ,the direct current side characteristic both side.The subway that combines that system in
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Abstract
Along with the development of the economy, the city transportation hustles condition more and more rigorous, the daily pursuit and the life of serious influence people.The subway conduct and actions a kind of imbecility consume,low pollution,high-efficiency conveyance method, all got an extensive application in the big and medium-sized cities all round the worlds.It because of having speed quick,stand to be apart from short,rise to make to move a multifarious etc. characteristics, have become to solve fast transportation of city of valid way.Widespread in the subway make use of to the direct current to lead what the power supply system adopt is a diode to commutate a machine, the electric power can lead one-way fluxion of net toward the direct current from the exchanges charged barbed wire net.When the vehicle system move, the rebirth system amount of kinetic energy of the surplus makes the direct current charged barbed wire net electric voltage go up.Resolving a method traditionally establishes electric resistance system to move device, this results in two problem.The first problem is to can't make use of to make amount of kinetic energy effectively.The second problem BE, because of currently subway in main usage the thyristor is two kinds of to commutate a way and diode, so of commutated a way to be equal to toward charged barbed wire net to infuse into a great deal of harmonic and reactive power, will cause the net side electric current mutation, even influence the electric power quality of the electric power system seriously.
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Байду номын сангаас
Guangzhou in the meantime has already carried the camp circuit up install,experiment with circulate of actual data, carry on the valuation and verification to the stability and the economy energy function of that system. Keyword: Energy feedback； traction power supply；metro；application
2.1.1 变电所的分类及要求............................................................................................... 6 2.1.2 变电所的运行方式................................................................................................... 7 2.2 直流牵引供电.................................................................................................................. 9 2.2.1 系统的组成............................................................................................................... 9 2.2.2 运行方式................................................................................................................. 11 2.3 电力监控........................................................................................................................ 11 2.3.1 基本组成与功能..................................................................................................... 12 2.3.2 监控的基本内容..................................................................................................... 12 第三章 能馈式牵引供电装置................................................................................................ 14 3.1 装置简介........................................................................................................................ 14 3.1.1 系统构成................................................................................................................. 14 3.1.2 装置功能特点......................................................................................................... 15 3.2 控制系统功能与组成.................................................................................................... 16 3.2.1 控制系统组成......................................................................................................... 19 3.2.2 控制系统功能......................................................................................................... 20 3.2.3 控制系统接口......................................................................................................... 21 3.2.4 实时监控软件......................................................................................................... 22 3.3 系统结构参数................................................................................................................ 25 3.4 型式试验数据................................................................................................................ 27 第四章 系统控制策略............................................................................................................ 29 4.1 控制系统功能层次划分................................................................................................ 29