超級電容器直流儲能系統(tǒng)分析與控制技術(shù)的研究.pdf

1、中國科學(xué)院電工研究所博士學(xué)位論文超級電容器直流儲能系統(tǒng)分析與控制技術(shù)的研究姓名：張慧妍申請學(xué)位級別：博士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：齊智平20060615ResearchontheAnalysisAndControlStrategyofUltracapacitorDCStorageEnergySystemApplicationZhanghuiyan(ElectricPowerSystemandAutomation)Directed

2、byprofessorQiZhiPingAbstractElectricenergyisthemostconvenientandcleanenergysources，anditisusedfarandwideWhiletherearemanyproblemsofpowerqualitywhichimperilgreatlyelectronicloadsModemtimes，highquMitypowersupplyisrequiredb

3、ymodernmanufacturers，andaquickandefficientenergystoragetechnologyisnowstarvedforinordertoimproveandsolvethetransitorypowerqualityAsanewkindofenergystoragecomponent，ultracapacitorshavefastresponse，highcharge—dischargeeffi

4、ciencyandtherearetypesofcommoditiesonsalewhichspeedupassembleandfacilitatetoenlargeenergystoragecapacitythereforetheultracapacitorisconsideredthemostpromisingenergystoragetechnologytoimprovepowerqualityInordertesearchthe

5、validityofultracapacitordcenergystorageunitappliedtoimprovepowerqualityThispapersetupthemathmodel，anddifferentcontrolstrategiesareprovidedandanalysedAexperimentMprototypetestrigisconstructed，andthetheoreticalanalysisresu

6、ltsareverifiedwithitWiththeanalysisofultracapacitorchargeanddischargecharacteristics，aconclusionisdescribedthatwhentheultracapacitorsnumberisfixedon，theinseriesorparallelconnectionmodewillnotaffecttheoutputefficiencyofea

7、chultracapacitorUltracapacitorDCenergystoragesystemiscomposedofultracapacitorsbankandadcdcconvertorBasedonlargesignalmodelforoperationalstabilityarestrictionisaddedtod(dutyratio)Basedonsmall—signallow—frequencylinearcirc

8、uitmodel，transferfunctionsareobtained，andlinearcontroltheoryCanbeadoptedtodesignsimplePIcontrollerTostabilizethedebusbetweenDynamicvoltagerestorerandultracapacitorsdcenergystorageunit，positiveandnegativepowerflowsshouldb