【正文】 1 電力電子電路典型環(huán)節(jié)的 MATLAB 仿真 摘 要 :本文主要研究了電力電子電路典型環(huán)節(jié)的 MATLAB 仿真，首先介紹了 MATLAB 軟件及其圖形仿真界面 Simulink 的基礎(chǔ)應(yīng)用知識(shí)，然后介紹了用于電力電子仿真的 SimPowerSystems 中的各種模塊庫(kù)， 完成了對(duì)整流電路、斬波電路典型環(huán)節(jié)的建模與仿真，并且給出了仿真結(jié)果波形。 通過(guò) MATLAB/SIMULINK 軟件來(lái)建立各電路的仿真模型，并且對(duì)各個(gè)模塊和系統(tǒng)內(nèi)部的參數(shù)進(jìn)行設(shè)置，例如仿真算法、電子器件的選擇和電源幅值和頻率等，最終實(shí)現(xiàn)電力電子系統(tǒng)在 MATLAB 中 的仿真。仿真結(jié)果和理論分析結(jié)果相一致，驗(yàn)證了仿真建模的有效性和正確性。 最后，本文對(duì)研究成果進(jìn)行了總結(jié)，并提出了進(jìn)一步改進(jìn)建議。 關(guān)鍵詞 ： Matlab/Simulink， 仿真，整流電路，斬波電路 2 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 pleted 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 peaktopeak value and frequency and so on, finally realized simulation that the electric power electronics alternatingcurrent 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 3 目 錄 第 1 章 概述 ................................................................................................................... 5 國(guó)內(nèi)外研究概況 .................................................................................................. 5 本課題的研究?jī)?nèi)容 .............................................................................................. 5 本課題的研究目的與意義 .................................................................................. 6 第 2 章 MATLAB/SIMULIK基礎(chǔ)知識(shí) ..................................................................... 7 MATLAB 介紹 ..................................................................................................... 7 MATLAB 主要組成部分 .............................................................................. 7 MATLAB 的系統(tǒng)開(kāi)發(fā)環(huán) .............................................................................. 8 SIMULINK 仿真基礎(chǔ) .......................................................................................... 9 SIMULINK 啟動(dòng) ......................................................................................... 10 SIMULINK 的模塊庫(kù)介紹 ......................................................................... 11 電力系統(tǒng)模塊庫(kù)的介紹 ............................................................................. 12 SIMULINK 的仿真步驟 ............................................................................. 13 第 3 章 整流電路的 SIMULINK仿真設(shè)計(jì) .............................................................. 15 單相橋式整流電路的仿真 ................................................................................ 15 單相橋式全控整流電路的工作原理 ......................................................... 15 建立仿真模型 ............................................................................................. 15 設(shè)置模型參數(shù) ............................................................................................. 17 模型仿真 ..................................................................................................... 18 三相橋式整流電路的仿真 ................................................................................ 21 三相橋式全控整流電路的工作原理 ......................................................... 21 建立仿真模型 ............................................................................................. 22 設(shè)置模型參數(shù) ............................................................................................. 23 第 4 章 斬波電路的 SIMULINK仿真設(shè)計(jì) .............................................................. 26 降壓斬波電路 的仿真 ......................................................................................... 26 降壓變換器的工作原理 ............................................................................. 26 建立仿真模型 ............................................................................................. 27 設(shè)置模型參數(shù) ............................................................................................. 28 模型仿真 ..................................................................................................... 28 升壓斬波電路的仿真 ........................................................................................ 30 4 升壓變換器的工作原理 ............................................................................. 30 建立仿真模型 ............................................................................................. 30 設(shè)置模型參數(shù) ......................................................................................