摘要PAGEI本科毕业设计（论文）（双E类逆变器拓扑电路仿真研究）***燕山大学2012年6月摘要感应加热电源是利用电涡流对工件加热的一种装置，由于具有诸多优点而在工业中得到了广泛的应用。目前，国内中频电源已经非常成熟，高频电源在频率、容量等方面还有待提高。因此本文针对高频电源进行了理论分析和研究。文中首先介绍了感应加热电源的工作原理并讲述了国内外的研究现状。接下来分析了E类逆变器的工作原理和双E类逆变器的工作原理，以及工作在最佳状态下MOSFET的电流电压波形，为接下来设计双E类逆变器做了准备。然后分析了谐振电路、E类逆变器的谐振频率等，设计计算了双E逆变器电路的参数。根据双E类逆变器的原理，为使其工作在最佳状态，设计了闭环控制电路。最后用pspice仿真，验证设计方案的可行性。关键词感应加热；MOSFET；E类逆变器；pspiceAbstractAbstractPAGEIVPAGEIIAbstractPowersupplyforinductionheatingisanequipmenttoheattheworkpiecebywhirlingcurrentanditisappliedwidelyinindustrybecauseofitsmanyvirtues.Now,intermediatefrequencypowersupplyisperfect,buthighfrequencypowersupplyhasdefectsintheaspectsoffrequencyandcapacityandsoon.Sohighfrequencypowersupplyisdevelopedinthisthesis.Firstly,operationprincipleofinductionheatingisintroducedandtheactualityofthepowersupplyforinductionheatingissummarized.Thenanalysistheoperationprincipleofclass-Einverter,doubleclass-Einverter.andtheMOSFETcurrentandvoltagewaveformsinthebestcondition,whichispreparationfordesigndoubleclass-einverternext.Moreoverseriesresonantinverterisselectedasinvertercircuitandexplaintheresonantfrequencyofclass-Eanddoubleclass-Eviaanalysis.Inordertosimulationthecircuit,theinvertercircuitparametersaredesignedandcalculated.Accordingtotheprincipleofdoubleclass-Einverter,inordertomakeitworkinthebestcondition,designclosed-loopcontrolcircuit.Finallyusingpspicesimulationtoverifythefeasibilityofthedesign.Keywordsinductionheating;MOSFET;class-Einverter;pspicePAGEIII目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc327115967"摘要PAGEREF_Toc327115967\hIHYPERLINK\l"_Toc327115968"AbstractPAGEREF_Toc327115968\hIIHYPERLINK\l"_Toc327115969"第1章绪论PAGEREF_Toc327115969\h1HYPERLINK\l"_Toc327115970"1.1课题背景PAGEREF_Toc327115970\h1HYPERLINK\l"_Toc327115971"1.1.1感应加热电源的基本原理PAGEREF_Toc327115971\h1HYPERLINK\l"_Toc327115972"1.1.1.1电磁感应与感应加热PAGEREF_Toc327115972\h1HYPERLINK\l"_Toc327115973"1.1.1.2透入深度与集肤效应PAGEREF_