三相功率因数校正电路的研究

《三相功率因数校正电路的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、北京交通大学硕士学位论文三相功率因数校正电路的研究姓名：李战龙申请学位级别：硕士专业：电力电子与电力传动指导教师：汤钰鹏20070301ABSTRACTABSTRACT：WithwideapplicationofpowerElectronicsequipment．theharmonicofpowersystemISbecomingaseriousproblem．Theseequipmentsmostlyusetheconventionalrectifiers，whicharenon-lineandconsistofuncontrollablediodes．socauset

2、heinputcurrentdistorted，containslotsofhigh1jrequencyharmonic．Asaneffectivewayeliminatedhigh行equencyharmonic，activepowerfactorcorrectiontechnologyisresearchedandapplieddeeply．Becausethemiddleandlargepowerequipmentsaccountforheavyproportionandthree-phasePFChasimportantfunctiontosolvethepoll

3、utiontotheunity,three．phasePFChasbecomehotstudysubjectinintemationalpowerelectronicseducationalcirclesalready．Inthispaper,manykindsofthree．phasePFCanddifferentcontrolwayarediscussed，thenmodeledandsimulatedbyMatlab／Simulinksoftware．Theoryofpowerfactorcorrectionandworkingprocessofdifferentt

4、opologyareresearched．Thedisadvantageandadvantageofdifferenttopologyandapplicableoccasionarealsoanalyzed．ThestudyresultsCanofferandguidethechoiceandoptimizationofvariouskindsofcircuittopologies．ThreephasesingleswitchPFCcircuitiselectedfrommanykindsofthree-phasePFCtopologies，andresearchedin

5、detail．Accordingtothesimulatedresults，thecontentofthe5mharmonicisveryhighintheinputcurrent．Thepaperusesharmonic-injectionmethodtoeliminatethe5mharmonic．ThereasonwhytheproposedcircuitCanreducetheinputlinecurrenttotal．harmonic．distortion(THD)，improvingthepower-factorandcharacteristicsofthew

6、holesystemisalsogiven．Thesimulatedresultsshowconsistencyofsimulationandtheoreticalanalysis．Finally,anexperimentalequipmentisdesigned，andsometestingresultsareshowed．KEYWORDS：Powerfactorcorrection；Boost；Harmonic．injection：Matlab；THD；CLASSNO：[请输入分类号，以分号分隔。]IV致谢本论文的工作是在我的导师汤钰鹏副教授的悉心指导下完成的。本论文

7、从最初题目的确定、研究到最后定稿完成，其中每一环节都离不开汤老师认真细致的指导教授。汤老师的治学态度、精湛的学术造诣、新颖的学术思想以及渊博的知识使我在研究生阶段的学习和科研中受益匪浅。汤老师不仅在专业知识学习上和科研能力上给我很多的帮助，同时注重提高我的综合能力，还在工作和生活上给予了我极大的关怀和无私的帮助。此论文完成之际，作者特向敬爱的汤老师致以最诚挚和最崇高的敬意，感谢三年来汤老师对我的关心和指导。在研究生的学习生活期问，特别感谢好友陆书文和张慧涛等同学的大力帮助，感谢实验室张忠权、冯尚科、谢建灵师兄和张杏珍师姐的指导