微电网负荷-储能混合系统控制策略研究

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1、万方数据ABSTRACTMicrogridisakindofenergyutilizationmodefittedtotheincreasepenetrationrateotrenewableenergyanddistributedenergyresources．Sincesomerenewableenergy1sintenllittentandrandom，installingtheenergystoragesorbackupgenerators，alldimpIementingtheloadsheddingaretheessentialmeasure

2、stomaintainthemicrogrldworkmgstability．IncontrasttotheresearchontheDGandenergystorages，theresearchontheIoadsheddingisaweaknessduetotheuniquecharacteristicsofmicrogridandthelackofthecooperativecontrolswiththegeneratorsandstorages．Andtheeconomicissuessuchasthehighinitialinvestments

3、leadedbylarge—scaleapplicationsoftheenergystoragesystemprimarilyobstructsthedevelopmentofmicro-grid．Inthisproposal，Thispaperfocusesonthecontrollableload(CL)，thehybridenergystoragesystem(HESS)andtheirintegratedcontroltodrawoneachother'sstrength．Thecontentofthispapercanbelistedasfo

4、llows：f1ThedoublelayermodelsofHESSandCLareestablished．InHESSmodel，theworkingprincipleandcircuittopologyofsupercapacitorandbatterystorageISIntroduced·ThenthemathematicalmodelandcontrolstrategiesofPCSandisestablished；InCLmodel，the10adcharacteristicsofthelightingandairconditioningis

5、analyzed-Andtoprovidethemodelingparametersandgroundswhileinloadcontrol，thedynamiccontrollableloaddatabaseisestablished．Atthesametime，theelectricalcharacteristicsofHESSandCLissimulatedandanalyzedbyusingPSCAD／EMTDCsoftware·(2)Inthispaper,aflexiblecontrolstrategybasedontheintegratio

6、nofthecontr0Hableloads(CLlandhybridenergystoragesystem(HESS)inmicrogridispresented，whichintroducesthestructureandthecontrolflowofthedesignedhybridloadandstoragesystem(HLSS)．TheinternalpoweroptimalallocationmodelbasedontheanalysisotthecharacteristicofHESSandCL．Consideringthemicrog

7、ridpowerbalance，userexpenenceandeconomicopermion，themulti．objectiveoptimizmionmodelwhichsolvedbythetwo．phaseiterativealgorithmbasedondualsimplexmethodisestablished·TheresultofthesimulinkshowsthatthecharacteristicsofenergystorageandCLiswellutilizedtocompensatethenonlinearpowerchar

8、acteristicsofCLwithHESSandsolvethehighco