高速铁路牵引供电系统设计
本论文主要以CRH5型动车组的牵引核心交—直—交牵引变频器为研究对象，阐述了CRH5动车组牵引变频器设计中主电路结构及其特点，分别对牵引变流器各个单元：四象限脉冲整流器、中间直流电路、牵引逆变器以及制动斩波器的原理进行了详细的分析，给出了牵引变流器结构中主功率器件的参数计算和选型、中间直流电路支撑电容的计算以及制动电阻的选取。分析了调速控制过程中所采用的变压变频控制方法，以及在列车制动过程中所用的回馈制动和能耗制动方法。
本文通过对CRH5交—直—交变频器进一步的研究，采用理论计算的分析方法，验证了CRH5动车组所采用的牵引变频器的主电路结构、各元件参数计算选型以及调速控制方法等方面的合理性和可行性。
毕业论文关键词：牵引变流器；主电路结构；参数计算；调速控制
Abstract
Since the 20th century, with the continuous growth of China's economy and development, our population continues to grow, demand for rail passenger and freight transport is increasing, leading to demand for high-speed EMU is growing, so have a good speed automatic control technology EMU, its traction control system in-depth study to help develop high-speed autonomous localization of EMU, national economic development is also very important.
This paper mainly traction core CRH5 EMU AC - DC - AC traction drive for the study, describes the main circuit CRH5 EMU design and characteristics of the inverter, respectively, each unit traction drive: Four-quadrant pulse rectifier, traction inverter and a brake chopper works in detail by analyzing traction inverter main power device parameter calculation and selection, DC link capacitor support structure calculations and system Dynamic resistance calculation. Analysis of the variable voltage variable frequency control method of speed control used in the process, as well as regenerative braking and dynamic braking the train braking method used.
Based on CRH5 AC - DC - AC inverter further research, the method of theoretical analysis to verify the traction inverter main circuit CRH5 EMU employed, each component selection and speed control parameter calculation method terms of rationality and feasibility.
Keywords: traction drive; the main circuit structure; parameter calculation; speed control
目录
摘要 I
Abstract II
1 绪论 1
1.1国内外高速动车组概述 1
1.1.1国外高速动车组概况 1
1.1.2我国高速动车组概况 3
1.2 高速铁路供电方式介绍 3
1.2.1直接供电方式 4
1.2.2 AT供电方式 5
1.4论文选题背景及意义 6
1.5本论文研究的主要内容 7
2 牵引变流器主电路结构及工作原理 8
2.1牵引变流器主电路结构设计 8
2.2牵引变流器工作原理 10
2.2.1整流器的工作原理 10
2.2.2二电平脉冲整流器特性分析 12
2.2.3牵引逆变器的工作原理 13
2.2.4制动斩波器 15
3 牵引变流器的基本参数选择与选型 16
3.1牵引变流器主功率器件计算选型 16