光伏發(fā)電失配補償及其最大功率跟蹤研究.pdf

1、東南大學碩士學位論文光伏發(fā)電失配補償及其最大功率跟蹤研究姓名：宋菁申請學位級別：碩士專業(yè)：電氣工程；電力系統(tǒng)及其自動化指導教師：周克亮；徐青山20110123ABSTRACTAsthenon—renewableenergystorageoftraditionalcoal，oilandotherprimaryene理了hasbeenprominentlydecreasednewenergydevelopmentandtheuseofren

2、ewableenergyweretheonlysolutionstotheconflictbetweenrapideconomicdevelopmentandshortageofsocialenergySolarphotovoltaicasarichandcleannewrenewableenergySOUI℃eScametoinevitablechoiceofsocialsustainabledevelopmentThesolarPV

3、markethasbeengrowingspectacularlyoverthelastyearsandforecastedthistrendinthecomingyearsHoweverthegeneratingpowerofPVmodulesorcellswouldbereducedbymismatchlosses，mainlyinthecaseofshadows，materialagingorpartialruinandSOonI

4、nordertoavoidthepowermismatchasimplemodelintegratedwithbypassandstringdiodes，configuredadditionallycomparedwithtraditiondesignforavoidingdeteriorationtophotovoltaicmodulesinseriesorparallelconnectionWasdescribedforcharac

5、teringmismatchingperformanceBasedontheNewton—RaphsonmethodthepaperworkedonthecomprehensivesimulationofhybridinhomogeneousirradiationsforshadowproblemandMPPTfromPVcell，PVmoduleandPVarraythesethreeaspectsThepaperfirstdiscu

6、ssedtheworkingprincipleandcharacteristiccurvestheofbasicphotovoltaiccellunitSeconddetaileddescriptionofphotovoltaicmismatchcompensationWasresearchedsuchasseriesparallelPVmodulestructuresandDC／DCsystemmoduleforphotovoltai

7、cconversionFinallymultipowerpeakswithmultibypassdiodesinstalledwerealsoinvestigatedamultipeakcBrveoftheglobalmaximumpowerpoimtrackingmethodWasproposedinchapter4Inchapter5，actualexamplesofdifferentirradiationonthephotovol

8、talchadbeenstudiedwithandwithoutthebypassdiode，MPPpeakpositionswerereviewedroundlyviasimulationsofthetotalcharacteristiccurvesRepresentativecauseswereinvestigatedandsimulationresultstestifiedthevalidityofevaluatingthepot

9、entialandavailablepowerThroughalltheseanalysisofmismatchlossandglobalmaximumpowerpeal(trackingnotonlythecharacteristicofthecircuithasimprovedbutalsothephotovoltaicoutputpowerWaseffectivelyimprovedtoprovideguidancetotheac