基于分區(qū)控制的光伏并網(wǎng)功率調(diào)節(jié)系統(tǒng)研究

1、華北電力大學(xué)(北京)碩士學(xué)位論文基于分區(qū)控制的光伏并網(wǎng)功率調(diào)節(jié)系統(tǒng)研究姓名：吳春洋申請學(xué)位級別：碩士專業(yè)：電氣工程；電力系統(tǒng)及其自動化指導(dǎo)教師：鮑海201103華北I乜力大學(xué)碩f學(xué)位論史AbstractThemain如nctionofRoutinephotoVoltaic(PV)powergeneration，wimextrareactiVecompensationdeVicesequipped，isa肋rdingactiVepower

2、toelectricnetworl(，theefrectsofwhichonimpr0VingthequalityofpowersupplyislimitedSoadding鰣d—coIlllectedpowerregulatingcontrol，integratedwiththe如nctionofactiVepoweroutput，reactiVepowercompensation鋤dharmonicwaVesuppressionin

3、t0PVpowergenerationsystem，wouldbeimportant，asithasobViousefI’ectsinimproVingpowersupplyquality；reducingtransmissionlossesmdsaVingcostsofcompensationdevicesPresently’itisactiveandreactiVepowerdecouplingcontrolstrategiesth

4、atareadoptedinPVgrid—connectedpowerregulationsystemThesestrategieshaVethecharacteristicsofclearconc印tandhigllcontrolprecision，yetaresensitiVetonetworkpar鋤etersandnotsuitableforusingindistributionnetworkInthispaper，aPV酣dc

5、onnectedpowerregulationcontrolmethodbasedonzonalcontrolisintroduced，inallusiontothelimitsshowedintraditionalmethodsIIlthismethod，theoperationareaofPVsystelnonPQplanewouldbediVidedintoseVeralsubareasBasedonoutputactiVepow

6、erofPVandVoltageatPCCthathasbeenmeasured，relevantcontmlpar鋤eterscouldbepr0Vided，sotheoperatingpointofPVpowergenerationsystemcouldbelalldedincollrespondingsubareaEachsubarear印resentsakindofoperationmodeswitllsimilarqualit

7、ies，鋤dcontrolprecisionwouldbecomehi曲erwiththeareabeingmorefinediVidedAsthegridC0nnectedpowermodeldoesnotchangewiththenetworkpar鋤eterS，thediscussedstrategyc鋤besuitablefortheuseofPVgenerationconnectedtoallVoltageleVelgrids

8、、ⅣhenthePCCvoltagechanges，toavoidthedeViationprobl鋤ofPVoperatingpointsthateasilyoccursinimpl鋤eIltingzonalcontI0lacorrectionmethodbasedontotaldifferentialisproposedMoreoV％allowingforthatthedampist00littlewithLCfilter’，bot

9、hthedesignplans0fLRCfilterwithd鋤p銣[1dselectionprinciplesofdampresist鋤ceaLreanalyzedAsin甜ephasePVsyst鋤usingthezonalcontrolstrategyisco肌ectedtoa25buseslowVoltageleveldistributionnetwork，bywhichthedetailedprocessofzonalcont

10、rolisexplained，alsotheinnuenceondist—butionnetworkVoltagequalitiesaIldloadflowis趾alyzedThecasevalidatesthee何~ectivenessofthediscussedmemodKeywords：photoVoItaicgrid—co皿ectedgeneration，LRCfilter，鰣d—connectedpowerregulating