PSPICE并联IGBT模块的均流特性分析

摘要目前，直流大电流开关具有重要的应用，其中半导体开关自从上世纪 50 年代问世以来，由于功率半导体技术的进步，单个半导体开关的电压和电流容量越来越大，利用多个半导体开关的串、并联制作高压、高电流的直流开关得到了很大程度的研究和应用。 22968
   本文首先介绍了IGBT及其扩容技术的发展背景，说明了电力电子装置并联的必要性；然后在分析了IGBT特性、工作原理及应用背景的基础上，论证了IGBT扩容的并联方法的合理性。本文从理论上分析了IGBT并联静态均流和动态均流特性，通过PSPICE 仿真软件比较了不同因素对开断电流暂态过程中并联模块电流一致性的影响。IGBT 并联使用的存在问题主要是：并联IGBT 由于性能和导通时间等方面都不可能做到完全相同，使得均流变得很困难。分析了一些可实施的均流方法，并专门对栅极补偿法进行了仿真分析。通过仿真结果发现：栅极电阻调节法可以实现动态均流
关键词：IGBT，静态均流，动态均流，PSPICE仿真
毕业设计说明书（毕业论文）外文摘要
Title    Study of Current Balance of IGBT in Paralleling
Abstract
Nowadays high-current DC switches have very important and variable applications. From solid semiconductor switch came out in the 1950s，a sole solid switch’s capacity of voltage and current have largely been developed due to the advancement of power semiconductor technics.So the use of multiple solid switches in series or in parallel to product high-voltage or high-current DC switches have been large degree of research and application.
This paper describes the development and the technology of IGBT Dilation , indicating the necessity of power electronic devices in parallel.Then I analyzes the IGBT characteristics, basic working principle and application background ,and demonstrates the rationality of IGBT parallel method.This paper theoretically .I compare the effects about different factors on IGBT current sharing by the PSPICE simulation software.Because of the main problems is,Due to turn-on time,performance, and so impossible to do the same，current sharing is difficult.This paper analyzes some methods about current sharing, and specifically analyzes on the gate Compensation Methods by PSPICE the simulation.By analyzing these consequences the author make some conclusions：Gate-resistor adjusting can be used to improve current-sharing during switching phases.
Keywords:IGBT,static-current balance,dynamic-current balance,PSPICE
目次
1 引言    1
1.1 课题背景及研究意义    1
1.2 国内外IGBT并联技术的现状和发展    1
1.3 课题的目的和任务    2
1.4 本章小结    3
2 IGBT工作原理及应用要求    4
2.1 IGBT的结构和工作原理    4
2.2 IGBT的基本特性    5
2.3 本章小结    8
3 IGBT并联特性的研究    9
3.1 静态均流特性    9
3.2 动态均流特性    14
3.3 关断时刻波动——寄生振荡    32
3.4 本章小结    33
4 IGBT并联均流方法的研究    35
4.1 静态均流方法    35
4.2 动态均流措施    35
4.3 栅极电阻补偿法    36
4.4 本章小结    41
结论    43 PSPICE并联IGBT模块的均流特性分析:http://www.751com.cn/zidonghua/lunwen_15845.html