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1、華南理工大學(xué)碩士學(xué)位論文基于DSP的數(shù)字控制移相全橋變換器姓名：唐建軍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電力電子與電力傳動(dòng)指導(dǎo)教師：梁冠安20030516華南理工大學(xué)工學(xué)碩士學(xué)位論文ABSTRACTInrecentyears，thephase—shiftedbridgehasfoundmanyapplicmionsduetoitsdistinctcharacteristicsThistopologypermitsallswishingdevice

2、stooperateunderzefD—voltageswitchingbyusingcircuitparasiticsuchasleakageinductanceandpowerFETjunctioncapacitancetoachieveresonantswitchingTheZVSallowsoperationwithmuchreducedswitchinglossesandstresses，andeliminatesthenee

3、dforprimarysnubberItenableshighswimhingfrequencyoperationforimprovedpowerdensitywithgoodconversionefficiencyToimplementZVSFBZVSdc／dcconverter’theconventionalanalogycontrollerUC3895generallyisusedHowevertheemergenceofadva

4、ncedmicroprocessorsanddigitalsignalprocessorshasmadeitpossibleforpowersupplymanufacturerstoconsiderdigitaltechnologyasasuitableoptionAscomparedtoanalogycontrol，digitalcontrolprovidesanumberofadvantages，suchaslesssuscepti

5、bilitytOagingandenvironmentalvariationbetternoiseimmunityabilityt0handlecomplexcontrolschemesandmonitoringfunctions，possibilitytOimplementconununicationfunctionsforfaultandstatusinformation，andeasyre—programmingfordiffer

6、entapplicationWiththedownwardtrendofmicroprocessorpriceandtheincreaseofthecomputationpowerdigitalcontrolcanpotentiallybecomeacosteffectiveandalternativesolutiontoanalogcontrolintheswitchmodepowersupplyindustrySObytheuseo

7、ftheDSPcontrollerexecutingacontrolstrategyindigitaldomain，thephase—shiftedbridgeconverterCanbecontrolledverywellDigitalcontrolincludesmanycontrolstrategysuchasPIDcontr01Pole—placementandAdaptiveDigitalControl，andSOonThes

8、econtrolstrategyhavemanycharacteristics，buttheyisnotverysuittOdigitalcontrolofphase—shifledbridge，Inthispaperthefirstpartdiscussestwobuildingsmall—signalmodelofphaseshiftedbridge；quasilinearmodelofphaseshiftedbridgeCande

9、scribeverywellitsoperationinthecaseoflargeperturbationbasedonthismodel，usingpredictiontechnologyandPole—placementandAdaptiveDigitalControl，Pole—placementandAdaptiveDigitalControlusingpredictiontechniqueisproposedThesimul

10、ationsforpole—placementandadaptivecontrolofZVSFull—BridgeDC／DCConverterusingpredictiontechniquewithenvironmentalchangeshavebeenfinishedbyMatlabinordertOprovethefeasibilityoftheproposedcontrolstrategies，thesimulatingresul

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