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-,,(,100192):-,、、。-。100kWp,,,,;,“”,。:;;;;;;:TM464:A:1006-6047(2011)08-0020-04:2010-12-13;:2011-06-08:(50907067);973(2010CB227206)ProjectsupportedbytheNationalNaturalScienceFoundationofChina(50907067)and973Program(2010CB227206)ElectricPowerAutomationEquipmentVol.31No.8Aug.2011318201180,,[1-2]。,、,[3-9]。,[10-11]。,UPS[3,11-14]。,[5,11]。1-1,QF1、QF2、QF33、UPS。QF4、QF52。。。UPS、。22FDC(FlowDirectionControl)3。,QF1、QF2、QF3,IGBT,DC/DC,UPS。FDC,,、。a.QF1、QF2、QF3。3。,。/,4,。4,1-Fig.1Topologyofphotovoltaic/energy-storagehybridsystemQF4QF5QF2QF1UPSQF3,。UPS,。b.QF1、QF3,QF2。UPS,。、。UPS,,。,,。,,UPS。c.QF2、QF3,QF1。UPS,。,,,UPS,。33FDC。,、、、。,,、UPS。,,。4100kWp,。115°27′,28°09′。H=H1×2.778÷10000=13094×2.778/10000=3.638(W/m2)。4100kWp。4(a),,。4(b)10%,60%,50%20%。4,,。SQF1OSQF2OttSQF3OtSIGBT,rOtπ/2SIGBT,mOtScho,rOtπ/2Scho,mOtTTSUPS,rOtπ/2SUPS,mOtT(a)(c)SQF1OSQF2OttSQF3OtSIGBT,rOtπ/2SIGBT,mOtScho,rOtπ/2Scho,mOtTTSUPS,rOtπ/2SUPS,mOtT(b)SQF1OSQF2OttSQF3OtSIGBT,rOtπ/2SIGBT,mOtScho,rOtπ/2Scho,mOtTTSUPS,rOtπ/2SUPS,mOtT2Fig.2Mainoperatingmodes,:-825020015010050Pa/kW150250200100500110130150170190P/kWWs/(kW·h)7、Fig.7Relationshipamongphotovoltaicsystemscale,energystoragesystemcapacityandsystempowergeneration09055FDC,-。,,。5(a),20kW,20%。5(b),,50kW,50%,250%。6P、WsPc。,,,,。,,。7P、WsPa。65503520Pc/kW150250200100500110130150170190P/kWWs/(kW·h)6、Fig.6Relationshipamongphotovoltaicsystemscale,energystoragesystemcapacityandsystemcapacityreduction908010-60P/kW(a)24681012141618202224t/h5Fig.5Effectofenergystoragesystemonsystemcapacityreduction7030-10P/kW(b)24681012141618202224t/h700035000W/(kW·h)2009-112009-122010-012010-022010-032010-042010-05(a)2009112010570350D/%10(b)20304050607080P/kW4100kWpFig.4PowergenerationstatisticsofNanchang100kWpphotovoltaicsystem3FDCFig.3FlowchartofFDCsystem/UPS?QF1、QF2、QF3?/??,UPS?YYNNYNNYNY31Operatingmodesofphotovoltaic/energy-storagehybridsystemanditscontrolstrategyLIANGLiang,LIJianlin,HUIDong(ChinaElectricPowerResearchInstitute,Beijing100192,China)Abstract:Theoperatingmodesofphotovoltaic/energy-storagehybridsystemareanalyzed,includingwholesystemmode,energystoragebypassmodeandenergystoragesupportmode.Itstopologyisproposedwiththeflowdirectioncontrol,whichisverifiedbythesimulationwiththeoperationaldataofa100kWpphotovoltaicsystem.Theintegrationofphotovoltaicsystemandenergystoragesystemincreasesthesystemcontrollabilityandgrid-connectionflexibility,improvesthesystemoutputcharacteristicsofloadresponse,andreducesgreatlythesystemrequirementsforgridpowertransmissioncapacity.Keywords:electricpowergeneration;energystorage;photovoltaiccells;microgrid;flowdirectioncontrol;independentoperation;electricnetworktopology,“”。,,。6,,。FDC,,,。。:[1],.[J].,2009,29(9):85-89,100.DAIXunjiang,CHAOQin.Adaptivecurrenthysteresiscontrolofgrid-connectedinverter[J].ElectricPowerAutomationEquipment,2009,29(9):85-89,100.[2],,,.———[M].:,2009:10-27.[3],,,.[M].:,2008:1-14.[4],,.[J].,2011,31(1):1-9.BIEZhaohong,LIGengfeng,WANGXifan.Reviewonreliabilityevaluationofnewdistributionsystemwithmicro-grid[J].ElectricPowerAutomationEquipment,2011,31(1):1-9.[5],,.[J].,2010,30(12):1-8.ZHANGQiang,ZHANGBoming,LIPeng.Reviewofstructureandconceptevolutionofdispatchandcontrolsystemforsmartgrid[J].ElectricPowerAutomationEquipment,2011,30(12):1-8.[6],,.[J].,2008,28(21):68-72.XIELirong,WANGZhiyong,CHAOQin.Researchontheme-chanicalcharacteristicofsquierrelcageasynchronousmotors[J].ProceedingsoftheCSEE,2008,28(21):68-72.[7]LIW,JOOSG,ABBEYC.WindpowerimpactonsystemfrequencydeviationandanESSbasedpowerfilteringalgorithmsolution[C]∥IEEEPowerSystemConferenceandExposition.Atlanta,USA:[s.n.],2006:2077-2084.[8],,.[J].,2007,27(10):69-73.SUNGuoxia,LIXiaocong,CAIYiming.Modelingandsimultionofvariable-speedwindgeneratorsystemwithlargecapacity[J].ElectricPowerAutomationEquipment,2007,27(10):69-73.[9],,.PILEDPWM[J].,2006,27(2):132-135.YUFaping,ZHANGXing,WANGGuohua.Researchoncon-trollerofPWMconstantcurrentbasedonadaptivePIcontrolforphotovoltaicLEDlightingsystems[J].ActaEnergiaeSolarisSinica,2006,27(2):132-135.[10]NOMURAS,OHATAY,HAGITAT,etal.WindfarmslinkedbySMESsystems[J].IEEETransonAppliedSuperconductivity,2005,15(2):1951-1954.[11]YOSHIMOTOK,NANAHARAT,KOSHIMIZUG,etal.Opera-tionalsimulationofbatteryenergystoragesystemforsmoothingoutputfluctuationofwindpowergenerationsystemwithbatteryenergystoragesystem[C]∥Procof2006AnnualConference,Power&EnergySociety.Tokyo,Japan:[s.n.],2006:1244-1251.[12],,.[J].,2008,32(11):70-73.LIANGLiang,LIJianlin,XUHonghua.Reactivepowercontrolstrategyfordoubly-fedinductionwindpowergenerationsystemunderfaultinpowernetwork[J].PowerSystemTechnology,2008,32(11):70-73.[13],,.[J].,2008,42(3):19-21.LIANGLiang,LIJianlin,XUHonghua.Researchonlowvol-tageridethroughofdouble-fedinductivegeneratorwindpowersystem[J].PowerElectronics,2008,42(3):19-21.[14]LIHui,CARTESD,STEURERM,etal.ControldesignofSTAT-COMwithsuperconductivemagneticenergystorage[L].IEEETransonAppliedSuperconductivity,2005,15(6):1883-1886.(:):(1983-),,,,,(E-mail:realliangl@126.com);(1976-),,,,,。,:-8
本文标题:光伏-储能联合发电系统运行机理及控制策略
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