IGBT逆变电源的研究与设计

字数:21068.页数:47  文档编号:JD408

摘      要

逆变电源从出现到发展已经有很多年了，它的应用也己经不只是普通的应急设备了，它在节能、变频调速以及改善电源质量等很多方面被广泛利用。随着电力电子器件的不断更新换代，更高耐压更大功率更低损耗是逆变电源的发展趋势。
本文详细地分析了在逆变电源主电路中，各个元器件的作用以及其具体的选择方法。
文章从功率模块的物理结构入手，重点介绍了英飞凌公司第三代模块的先进之处和工作特性。文章是在查阅了大量的理论资料，参考了国内外各种各样的电路后，整理并完善出的整个主电路的设计方法。
关键词：逆变电源，IGBT模块，均压电阻，开关损耗

Abstract

There are many years from the power inverter have already appeared to the development. Its applications now are much more than only met the emergency equipment. It is used in many areas such as energy saving,  VVVF, the improvement of power supply quality and so on. With the development of power electronic devices, the trend of the power inverter is higher voltage, big power and lower loss.   
This article analyzed each component in detail of the main circuit of power supply.
The article introduced the physical structure and electric properties of the power module. the design was born. Several waveforms such as soft start, gate drive signal and so on. In the document, there raised a method for choosing the equal resistance.

Key  words：power  inverter，IGBT  module, ，equal  resistance，switch loss

目      录

摘      要 ...........................................................i
Abstract.............................................................ii
1．绪论 .............................................................1
1．1　课题研究的背景.................................................1
1．1．1　电力电子技术的发展......................................... 2
1．1．2 　逆变电源的发展现状 ........................................2
1．1．3　高频电力电子技术的理论基础..................................4
2．IGBT的特性及应用要求..............................................6
2．1　IGBT的基本结构及技术性能.......................................6
2．1．1　基本结构....................................................6
2．1．2　IGBT的结构特性..............................................7
2．1．3　IGBT的技术性能..............................................9
2．2　IGBT 的基本工作特性............................................11
2．2．1　静态特性 ...................................................11
2．2．2　动态特性 ...................................................12
2．3　IGBT的保护 ....................................................15
2．3．1　过电流保护 .................................................15
2．3．2 　IGBT过电压保护.............................................16
2．3．3　IGBT的过热保护..............................................17
2．4　IGBT的参数和安全工作区.........................................18
2．4．1　IGBT的参数 .................................................18
2．4．2　安全工作区 .................................................19
3．设计要求及各项原理算法分析........................................20
3．1　IGBT的驱动电路.................................................20
3．2　IGBT的门极特性及其保护措施.....................................21
3．2．1　门极驱动电压................................................21
3．2．2　门极串联电阻................................................22
3．2．3　门极的开关频率..............................................23
3．2．4　门极的保护措施 .............................................23
3．3．1　 EXB851应用电路 ............................................25
3．4　电路过压保护 ..................................................26
3．5　模块选取的参数指标.............................................26
3．6　逆变电源设计要求 ..............................................27
4．电路板的设计......................................................28
4．1　IGBT驱动模块设计...............................................29
4．1．1　接口选择模块................................................29
4．2　整流电路与软启动电路...........................................29
5．开关电源 .........................................................31
5．1　开关电源概述 ..................................................31
5．1．1　开关电源的定义 .............................................31
5．1．2　开关电源的优点..............................................31
6．结论与展望........................................................34
致      谢 ..........................................................35
参考文献.............................................................36
附      录...........................................................38

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