论文总字数：19508字

摘 要

随着石油资源的日益枯竭和环境污染的不断恶化，各种新能源及可持续发展技术逐渐受到人们的重视，电动汽车便是其中之一并且具有极为广阔的发展前景。同时，电动汽车的推广，离不开电动汽车充电站。电动汽车充电站是电动汽车的基础设施，它为电动汽车的运行提供能量补给。但是，电动汽车充电站中的充电机为满足电动汽车电池充电需求，在其工作时会产生大量的谐波，最终导致谐波污染。

在此背景下，全面地了解电动汽车充电机的技术基础，探讨其工作原理及控制方式，对电动汽车充电站中充电机的并网运行进行建模仿真分析是十分有意义的。本文主要内容叙述了电动汽车充电站发展的历史背景及国内外的发展现状，以及电动汽车充电站对供电系统的影响和防范措施。在本文中还采用了MATLAB/Simulink搭建充电机系统模型，以三相不可控整流充电机模型为基础进行仿真，分析和计算电动汽车充电站中充电机的入网谐波。

关键词： 电动汽车充电机 建模 仿真分析

Harmonic analysis and calculation of

electric vehicle Station

Abstract

With the worsening of oil resources exhaustion and environmental pollution, all kinds of new energy and sustainable development technology gradually by the people's attention, electric car is the one of them and it has a very broad prospects for development. At the same time, the promotion of electric vehicles, can not be separated from the electric vehicle charging station. Electric vehicle charging station is the foundation of the electric vehicle, which provides energy supply for the operation of electric vehicles. However, electric vehicle charging station in the charger in order to meet the electric vehicle battery charging requirements, in the work will produce large amounts of harmonic, which eventually led to the harmonic pollution.

Under this background, comprehensively understand the charger of electric vehicle technology foundation, discussing the working principle and control mode, for electric vehicle charging station in charger of the grid connected operation of modeling, simulation and analysis is very meaningful. This paper describes the development of electric vehicle charging station's historical background and development status at home and abroad, as well as the impact of electric vehicle charging station on the power supply system and preventive measures. In this paper also uses the MATLAB / Simulink to build the battery charger system model, to three-phase uncontrolled rectifier charger model based simulation, analysis and calculation of electric vehicle charging station network harmonics of the charger.

Key Words: electric vehicle charger; modeling; simulation analysis

目 录

摘 要 II

Abstract III

第一章 绪论 1

1.1前言 1

1.1.1电动汽车发展概况 1

1.1.2 电动汽车充电站的介绍 2

1.1.3 电动汽车充电站入网谐波研究现状 3

1.2课题研究意义及主要内容 3

1.2.1课题研究意义 3

1.2.2本论文的主要内容 4

第二章 电动汽车充电机原理介绍及仿真模型构建 5

2.1 电动汽车充电机简介 5

2.1.1 电动汽车充电机的主要性能指标 5

2.1.2 电动汽车充电机的主要技术要求 6

2.2 电动汽车充电机的系统组成及工作原理 7

2.2.1 电动汽车充电机的系统组成 7

2.2.2 电动汽车充电机的工作原理 7

2.3 电动汽车充电机的仿真模型构建 9

2.3.1 充电机等效模型 9

2.3.2 充电机的仿真模型 9

2.3.3 仿真模型主要参数设置 11

第三章 电动汽车充电机谐波分析 12

3.1 谐波的定义、分类及其产生原因 12

3.1.1 谐波的定义 12

3.1.2 谐波的分类 12

3.1.3谐波产生的原因 12

3.2 电动汽车充电站对电网的谐波影响 13

3.3 充电机仿真图形输出及谐波分析 14

3.3.1 输出电压电流波形 14

3.3.2 功率因数输出图形 15

3.3.3 系统输出波特图 16

3.3.4 谐波畸变输出图 17

3.3.4 多台充电机仿真分析 18

第四章 电网谐波潮流计算 20

4.1 电网谐波潮流计算模型 20

4.2 谐波计算 22

4.2.1 谐波计算步骤 22

4.2.2 谐波迭代流程图 22

4.3 算例分析 24

4.3.1 Matpower介绍 24

4.3.2 充电机对系统各节点电压的影响 25

4.3.3 充电机对谐波电流放大倍数影响 26

第五章 结论与展望 29

参考文献 30

致谢 32

第一章 绪论

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