大功率集成化电力电子模块关键技术研究

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1、洳≥≥j～博士学位论文⑧论文题目太功室篡盛业鱼杰电王撞迭差键撞苤硒塞作者姓名毯蝗指导教师堡题阻塾握学科(专业)鱼氩王程所在学院曳氢王猩堂院浙江大学博士学位论文AbstraetAbstracthIhi曲powetapplications，thestructuresandtopologiesarenotasmanyasthatinthelowpewetapplications．Themainconvertersusedusuallyarewiththegamestructure．thereforeit'spossibletousethestandardize

2、dmodulestobuiltthemaincircuit．Intheindustry，italreadybecomesatrendtodevelopbasicmodulesforhighPOwerapplications．ThisdissertationmainlyfocusesonsomekeyissuesindevelopmentofHighPowerIntegratedPowerElectronicsModulerHVIPEM)．Themultileveltechnologyhasbeenemployedinthehighpowerapplica

3、tionformanyyears，such鹄inSTATCOM，UPFC，DV凡andAPFete．Thestructureofthemultileveltopologyhasthecharacterof“buildingblock"，andhasthepotentialtobebuiltwithseveralbasicIPEMs．Fromthepointofviewofthegeneralizedmultilevelinvertertopology,thedissertationanalyzesvarioustopologiesinmultilevel

4、applications，andgetstwomainmethodstoformamultilevelconverter：combinationandsimplification．Thesetopologiesformedbycombinationaresuitfordesignwithbasic1PEMs．Inthisdissertation．anewcaScadedmultilevelconvel'tel-withselfvoltagebalancingisproposed．Witllthisnewtopology．onlyoneDCsourceis

5、neededformultipleoutputs．Thevoltageacrossthecapacitorineachcaseadedcellcanbebalancedwithoutspecialcontr01．andindependentoftheloadtype．ComparedtotIletraditionaImultilcveltopologies．thenewonehasadvantagesin10wercost．simplercontrolandbetterperformanceinlowmodulation．Thenewtopologyal

6、socanbeextendedforDC-DCapplications．Anew1kW42／14Vflyingcapacitorconverterisproposedanddesignedfor42Vautomotivesystem，theproposedconverterhasnorequirementformagneticcomponents．ThemaincircuitoftheDC．DCconverterisanalyzedanditscontroIschemeispresentediIlthisdissertation．Besides．anew

7、designmethodforDC．DCconverterwithflyingcapacitortechnologyispresentedinthisdissertation．ThcnewmethodCallreducethehi吐pulsecurrentwhichusuallycausesseriousproblemintraditionalflyingcapacitorDC-Dcconverters．Theexperimentalresultsshowthenewconverter锄achieveapeake师ciencyof98％and96％atf

8、uJlJoad．Theexperimentalresultsverified乇h