论文总字数：22617字

摘 要

在当今社会，石油等能源的短缺问题和污染问题不断加剧，人们对于节约和环保的理念的理解越来越深刻。同时，电动汽车因为其环境友好、资源节约等优势，受欢迎程度越来越高。随着这个产品的在商业领域的迅猛发展，无线充电本身存在的一些问题越来越被放大，人们越来越需要解决它本身的充电问题。本文就主要探讨电动汽车的无线充电问题。这个问题如果不得到有效解决，电动汽车将会很难再继续发展下去。本文通过磁耦合谐振的相关知识研究了电动汽车的无线充电结构，在一定的距离下，可以实现电力的传输上的功率较高，效率较好的结果。

本文简述了电动汽车无线充电原理，让读者有了一些大致的了解。并对磁耦合谐振这方面的原理进行了概述。再然后对电动汽车无线充电的国内外现状介绍了一些，同时也对磁耦合谐振式无线电能传输系统方面的国内外现状介绍了一些。接下来，列举了一些这个项目目前还存在的发展问题及和可以解决的方法。

接下来进一步概述了磁耦合谐振结构的一些原理，对四种耦合补偿拓扑结构进行比较分析，得出串-串结构传输效率比较高，其他三种方式输出功率和传输效率相比来说较低。因此采用串-串结构作为最佳补偿方式。

然后分析了整流、逆变、斩波电路，分别选择了最适合的结构。通过了解电动汽车磁耦合谐振系统无线充电需要经过整流—逆变—耦合—整流—斩波的过程。利用simulink分别对逆变、整流、斩波等电路进行仿真，得出波形图并进行分析。用Visio软件画出了电动汽车磁耦合谐振系统无线充电的总体系统结构图及控制流程图。

　　关键词：电动汽车；无线充电；磁耦合；谐振电路；耦合线圈

Abstract

In today's society, the energy shortage and pollution problems such as oil are becoming more and more serious. People's idea of saving and environmental protection is becoming more and more profound. Therefore,electric vehicles are more and more popular because of their friendly environment and resource saving. During the time when the huge commercial potential and rapid development of this product, it is more and more necessary to solve its own charging problem. This paper mainly discusses this problem. If this problem is not solved effectively, electric vehicles will be difficult to continue to develop. In this paper, the wireless charging structure of electric vehicle is studied by the knowledge of magnetic coupling resonance. Under the condition of short transmission distance, the transmission power of electric vehicle is high and the efficiency is good.

This article briefly describes the principle of wireless charging of electric vehicles, so that readers have some general understanding of this thing. The principle of magnetic coupling resonance is summarized. At the same time, it also introduces the current situation of the magnetic coupling resonance radio energy transmission system at home and abroad. Next, it lists some development problems and possible solutions of this project.

Then, some principles of the magnetic coupling resonance structure are summarized, and four kinds of coupling compensation structure are compared and analyzed. It is concluded that the transmission efficiency of the series structure is relatively high, and the output power and transmission efficiency of the other three modes are relatively low. Therefore, series structure is used as the best compensation method.

Then the rectifier, inverter and chopper circuits are analyzed, and the most suitable structures are selected. Through understanding the process of rectifying, inverting, coupling, rectifying and chopping for wireless charging of magnetic coupling resonance system of electric vehicle, the system structure diagram and control flow chart of wireless charging of magnetic coupling resonance system of electric vehicle are drawn by using the software of vision.

Finally, the inverter coupling, rectifier, chopper and other circuits are simulated by Simulink, and the waveform is obtained and analyzed.

Key words: electric vehicle; wireless charging; magnetic coupling; resonance circuit; coupling coil.

目 录

摘要I

AbstractII

第一章 绪论1

1.1研究背景1

1.2电动汽车无线电能传输的过程和结构2

1.2.1电动汽车无线电能传输的过程2

1.2.2电动汽车无线电能传输系统结构3

1.2.3磁耦合谐振5

1.3电动汽车无线充电研究现状6

　　　　1.3.1国际现状6

1.3.2国内现状8

1.4磁耦合谐振式系统的现状 8

1.4.1国外的现状8

1.4.2国内现状10

1.5论文的主要研究内容11

1.5.1研究问题与思路11

1.5.2研究方法11

第二章 耦合基本原理与补偿设计13

2.1无线能量传输的原理分析13

2.2电路结构分类13

2.2.1两线圈结构14

2.2.2三线圈结构15

2.2.3四线圈结构15

2.2.4“一对多”与“多对一”结构16

2.3磁耦合谐振系统补偿网络分析17

2.3.1串-串结构17

2.3.2串-并结构19

2.3.3并-串结构19

2.3.4并-并结构20

第三章 电动汽车无线充电系统的电路设计22

3.1无线充电系统的基本组成22

3.2 整流电路23

3.3电感电容滤波电路24

3.4 整流滤波电路仿真25

3.5逆变电路26

3.6 逆变电路仿真28

3.7 斩波电路30

3.8 斩波电路仿真31

3.9 系统结构图及控制流程图与仿真32

第四章 总结与展望34

4.1总结34

4.2展望35

参考文献37

致谢40

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