地铁制动电阻地面化的仿真研究

菜单

摘要近些年来，地铁在我国发展迅速，许多城市都在修建地铁。在地铁的运行技术中，制动是很关键的一块。国内绝大多数采用的是车载电阻制动的方式，车载电阻制动有一系列问题，比如会增加车的重量以及造成隧道温升等问题。随着轨道交通技术的发展，广州地铁4号线引入了一种全新的制动方式——地面电阻制动，其基本原理是通过设置地面电阻来消耗制动过程中产生的多余能量。65563

本文的理论基础是带阻尼系数的牛顿迭代算法，同时依据牵引计算所得到的数据对网络模型进行电路求解。所得到的结果不仅仅可用作对地面制动电阻容量以及位置设定等问题的研究，也可以通过对变电所输出电压、功率曲线等重要数据的分析，对系统能耗进行分析。

本论文主要针对列车制动电阻地面化的可行性方面进行研究，同时对地铁直流牵引供电系统的组成及建模作深入地研究，并对制动电阻地面化后的牵引网络进行仿真，能针对仿真结果初步确定制动电阻的选择。本论文的研究，迎合了地面制动电阻逐渐取代车载制动电阻的趋势，所提出的地面制动电阻选型策略也具有一定的理论价值及工程参考价值。

在完成对供电网络仿真计算的基础上，利用已建立的模型，本论文对南京地铁1号线的一段区间进行了仿真，得到了某时段内运行的电压、电流、功率，以及沿线的两座变电站的相关参数。探讨将地铁列车车载制动电阻转移至地面后的仿真对比情况，并对地面化的制动电阻选型策略及功能设置提供一定的参考意见。结果表明，对地面制动电阻进行隔站设置是可行的，但是由此又会带来一系列问题，减少装置数量不但会增加制动装置容量，也不能预防突发的再生制动失效。为此，应综合各因素全面考虑。

毕业论文关键词地铁制动电阻地面化仿真牛顿迭代算法

毕业设计说明书（论文）外文摘要

Title The simulation and analysis of the subway grounding rheostatic braking

Abstract

Nowadays，regeneration braking has been widely used in electric railway and Urban Rail Transit(URT) due to its characters such as easily controlling and energy saving．Resistor on board is usually used to avoid invalidation of regeneration．This method has some disadvantages such as increasing weight of vehicles and increasing temperature rising in tunnel．So，in order to avoid those problems, the Grounding Rheostatic Braking had been applied in China when the first linear metro was introduced in Guangzhou Line 1．Extra regeneration energy is consumed by the device on ground together．

In this paper, the characteristic and operation principle of the Grounding Rheostatic Braking are described in detail．On the problem that how to allocate and decide the power of Grounding Rheostatic Braking devices，a simulation model of the Urban Rail Transit with Grounding Rheostatic Braking is introduced．considering all effects of the factors such as train running graph, feeding line resistance，operation voltage of the device and so on．Because the characters of the model are time-changing and non-linear, Newton-Raphson iterative algorithm is introduced here．Then important figures can be gotten such as output braking power and output voltage．

Newton-Raphson iterative algorithm is introduced here．Then important figures can be gotten such as output braking power and output voltage．The results of the simulation are not only important for the study of Grounding Rheostatic Braking but also used for the analysis of energy consuming of the system．

The results of the simulation are not only important for the study of Grounding Rheostatic Braking but also used for the analysis of energy consuming of the system．Simulation has been done based on the Nanjing line 1．The average and amplitude of braking power has been gotten after considering all the factors．Further research has been done about the effect factors such as train running graph，resistance of line，system voltage and so on．