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1、西南交通大學(xué)碩士學(xué)位論文開關(guān)電源的數(shù)字峰值電壓—峰值電流控制技術(shù)研究姓名：陳妮申請學(xué)位級別：碩士專業(yè)：電力電子與電力傳動指導(dǎo)教師：許建平20080501西南交通大學(xué)碩士研究生學(xué)位論文第1I頁西南交通大學(xué)碩士研究生學(xué)位論文第l
2、I頁AbstractDuetothehighpowerconsumingcharacteristicofthenextgenerationprocessors，theregulationrequirementforpowerconvertersystemsbecomesmoreandm
3、oredemandinginindustry．Sinceithastheadvantagesofgoodprogrammability,flexibilityandreliability,digitalcontrolsystemhasthepotentialtoachievehighperformancecontrolofswitching—modepowersupply(SMPS)．Themotivationofthisresearchistoexplorenewdigitalcontrolalgorit
4、hmsforSMPStoachievehighdynamicperformancecontr01．Twoadvanceddigitalcontrolalgorithmsaresummarizedinthisthesis，andmadeanintroductionandananalysisondigitalPeakVoltage—PeakCurrent(DPV-PC)controlalgorithmtoimproveitscompletionintheory．DPV-PCcontrolofSMPScombin
5、esadvantagesofPeakVoltage-PeakCurrentmodecontrol，includingoverloadcurrentprotectionandrobustdynamics，andadvantagesofdigitalimplementation，suchasprogrammability,flexibility,andscalability．InContinuousConductiveMode(CCM)，DPV-PCcontroltechniquewithdifferentmo
6、dulationmethods(single·edgeanddual·edgemodulation)isstudiedonBuckconvertertopology．Inthedigitalcontrolloopofswitchingconverter,thetimedelayfordigitaloperationsisinevitableanditisatleastoneswitchingcycle．Toovercomethistimedelay,thealgorithmcalledanimprovedd
7、igitalPeakVoltage·PeakCurrent(IDPV-PC)controlispresentedandcomprehensivelystudied．SmallsignalmodelofBuckconverterwithDPV-PCcontrolisderivedbyusingstatespaceaveragemethod．Andtheoutputimpedance，line-to—outputandcontrol--to--outputtransferfunctionsareobtained
8、subsequently．TheoreticanalysisandsimulationresultsshowthatIDPV-PCcontroltechniquehasabettertransientcontrolperformanceforpowerswitchingconverterthanDPV-PCcontroltechnique．ThecomparisonbetweenthetransientbehaviorsofDPV-PCcontroland西南交通大學(xué)碩士研究生學(xué)位論文第1V頁IDPV-PC
9、controlisperformedbysimulationresults，fromwhichweconcludethatIDPV-PCcontrolhasfastertransientresponsespeedthanDPV-PCcontr01．Keywords：Switching--modepowersupply；Digitalcontrol；PeakVoltage··PeakCurrentcontrol；O
