电力电子电路典型环节的MATLAB仿真毕业设计论文

教学单位 电子电气工程系 学生学号 200895014075 编 号 DQ2012DQ075

本科毕业设计

题 目 学生姓名 专业名称 指导教师

2010年 月 日

电力电子电路典型环节的MATLAB仿真

摘 要:本文主要研究了电力电子电路典型环节的MATLAB仿真，首先介绍了MATLAB软件及其图形仿真界面Simulink的基础应用知识，然后介绍了用于电力电子仿真的SimPowerSystems中的各种模块库，完成了对整流电路、斩波电路典型环节的建模与仿真，并且给出了仿真结果波形。

通过MATLAB/SIMULINK软件来建立各电路的仿真模型，并且对各个模块和系统内部的参数进行设置，例如仿真算法、电子器件的选择和电源幅值和频率等，最终实现电力电子系统在MATLAB中的仿真。仿真结果和理论分析结果相一致，验证了仿真建模的有效性和正确性。

最后，本文对研究成果进行了总结，并提出了进一步改进建议。 关键词：Matlab/Simulink，仿真，整流电路，斩波电路

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Abstract:This paper mainly studies the MATLAB simulation of the typical session to the power electronic circuit, This article first introduces the MATLAB software and the application of knowledge based on graphical interface Simulink simulation, and then introduced the various modules of SimPowerSystems library for the power electronic simulation, also completed Modeling and Simulation to the typical session of rectifier circuit and Chopper circuit, and show the results of the simulation waveform.

Established various electric circuits through MATLAB/SIMULINK software the simulation model, and set the establishment to each module and the interior parameter of system, for example simulation algorithm, electronic device choice and electrical source peak-to-peak value and frequency and so on, finally realized simulation that the electric power electronics alternating-current circuit in MATLAB. Simulation result and theoretical analysis result consistent, has confirmed the simulation modelling validity and the accuracy.

Finally, this paper summarizes the research results and makes suggestions for further improvement.

Keywords: Matlab/Simulink , Simulation, Rectifier circuit, Chopper circuit

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目 录

第1章 概述 .................................................................................................................. 5 1.1 国内外研究概况 .................................................................................................. 5 1.2 本课题的研究内容 .............................................................................................. 5 1.3 本课题的研究目的与意义 .................................................................................. 6 第2章 MATLAB/SIMULIK基础知识 ..................................................................... 7 2.1 MATLAB介绍 ..................................................................................................... 7 2.1.1 MATLAB主要组成部分 .............................................................................. 7 2.1.2 MATLAB的系统开发环 .............................................................................. 8 2.2 SIMULINK仿真基础 .......................................................................................... 9 2.2.1 SIMULINK启动 ......................................................................................... 10 2.2.2 SIMULINK的模块库介绍 ......................................................................... 11 2.2.3 电力系统模块库的介绍 ............................................................................ 12 2.2.4 SIMULINK的仿真步骤 ............................................................................. 13 第3章 整流电路的SIMULINK仿真设计 .............................................................. 15 3.1 单相桥式整流电路的仿真 ................................................................................ 15 3.1.1 单相桥式全控整流电路的工作原理 ........................................................ 15 3.1.2 建立仿真模型 ............................................................................................ 15 3.1.3 设置模型参数 ............................................................................................ 17 3.1.4 模型仿真 .................................................................................................... 18 3.2 三相桥式整流电路的仿真 ................................................................................ 21 3.2.1 三相桥式全控整流电路的工作原理 ........................................................ 21 3.2.2 建立仿真模型 ............................................................................................ 22 3.2.3 设置模型参数 ............................................................................................ 23 第4章 斩波电路的SIMULINK仿真设计 .............................................................. 26 4.1降压斩波电路的仿真 ........................................................................................ 26 4.1.1 降压变换器的工作原理 ............................................................................ 26 4.1.2 建立仿真模型 ............................................................................................ 27 4.1.3 设置模型参数 ............................................................................................ 28 4.1.4 模型仿真 .................................................................................................... 28 4.2 升压斩波电路的仿真 ........................................................................................ 30

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4.2.1 升压变换器的工作原理 ............................................................................ 30 4.2.2 建立仿真模型 ............................................................................................ 30 4.2.3 设置模型参数 ............................................................................................ 31 4.2.4 模型仿真 .................................................................................................... 32 第5章 仿真调试 ........................................................................................................ 34 5.1 模型仿真应注意的问题 .................................................................................... 34 5.1.1 模型建立和仿真参数的设置 .................................................................... 34 5.1.2 仿真运行和观测仿真结果 ........................................................................ 35 结 论 ....................................................................................................................... 37 参考文献 ...................................................................................................................... 38 致 谢 .......................................................................................................................... 40

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