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摘要：城市轨道交通由电力提供能量，在科技高速发展的今天，城市轨道交通的电能量消耗与日俱增，因而对节能技术的开发和研究其意义显得更加重大。在城市轨道交通中，机车处于再生制动时产生的大量能量回馈到直流电网，而制动能量在直流电网中积聚，如果在同一线路邻近的机车能充分吸收这部分制动能量，或产生的制动能量多于机车线路上的所有的电力负荷，这部分多余能量使得直流电网电压升高，这将损害电力供应线的电气设备。本文针对在制动时城市轨道车辆产生的再生制动能量，进行了再生能量回馈系统的研究，将再生能量回馈入电网，以达到城市轨道交通节能的目的，采用基于电能转换技术的吸收方式，所以本文讨论的重点是逆变器及其滤波和控制技术。28266
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运用MATLAB/SIMULINK,建立城市轨道机车制动能量逆变回馈系统仿真模型。通过对比分析本文所设计的回馈系统及其控制策略的仿真和实验，结果表明，该逆变回馈策略下,其系统的电能能够稳定进行回馈,输出的电流谐波含量满足电网的要求,证明了该系统的可行性。
毕业论文关键词： 轨道交通；再生制动；逆变回馈；仿真
Research and Simulation rail system energy feedback system
Abstract: Urban rail transportation rely on electricity to power today's rapid development in technology, increasing electricity consumption for urban mass transit, its research and development of energy-saving technologies even more significant. In urban rail transit, the locomotive is in regenerative braking generates large amounts of brake energy regeneration to DC power system and accumulate in the DC power supply with braking energy can be fully absorbed by the adjacent locomotive on the same line or produce more energy than the locomotive brake line when the sum of all the electrical load, this excess energy causes the DC voltage increases, which will damage the power supply line electrical equipment. In view of urban rail vehicle regenerative braking energy produced by braking regenerative energy feedback system of studies have been conducted. Using renewable energy back into the grid to achieve the aim of energy-saving urban rail transit, the patterns are based on power transformation technology, so the focus of this article and it’s filtering and control technology of inverters.
Using MATLAB /Simulink, established urban rail locomotive inverter energy feedback braking system simulation model. Through the design of the feedback system and its control strategy simulation and experimental results are compared, the results show that under inverter feedback strategy, to return the power to stabilize the system, the harmonic content of the output meets the power requirements, proved the feasibility of the system.
Keywords: rail traffic ; regenerative braking ; inverter feedback; simulation
目录
第一章 绪论 1
1.1 课题研究的背景及意义 1
1.2 城市轨道交通的发展 1
1.3 国内外研究现状与水平 2
第二章 城市轨道列车供电系统 3
2.1 供电系统的组成 3
2.2城轨动车主传动系统工作原理 4
第三章 城市轨道列车再生制动能量吸收利用 6
3.1 城市轨道列车制动方式 6
3.1.1 车载电阻制动 6
3.1.2 能量回馈制动 6
3.2 城市轨道交通再生制动技术 7
3.2.1 电阻耗能型 7
3.2.2 电容储能型 8
3.2.3逆变回馈型 9
3.3 城轨列车再生制动能量特性分析 10
3.3.1 再生制动能量的产生机理 10