冷热电联供型微电网优化配置与运行-研究

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1、西南交通大学硕士研究生学位论文第1I页AbstractTheurgentsituationofthelowenergyutilizationandtheenvironmentalpollutionleadtohighlyattentionoftheutilizationoftherenewableandcleanenergy．Developmentofthecombinedcooling，heatingandpower(CCHP)microgridbyusingdistributedcogenerationequipmentandrenewableenergy

2、sourceshasdrawnconsiderableresearchattentionrecentlyandhasbecomethekeynoteofthesecondgenerationenergysystemtechnology．CCHPmicmgrid，、^，iththecogenerationasthecorepartandmultipledistributedunits，hasmultipleenergybalancesandCanrealizethecascadeutilizationofenergy．Distributedneartheuser

3、s’end，themicrogridcanalsoconsumetherenewableenergy,thusitisconvenientforenergymanagement．Ithasmultipleadvantagesincludinghighenergyutilization，highpowersupplyreliability,flexiblecontrol，variousoperationmodesandlessenvironmentalpollutionandSOon．Inthisdissertation，astudyofoptimalconfi

4、gurationandoperationofCCHPWascarriedout，whichincludesmanydistributedunitssuchasPVandbattery．Themainstructureofthedissertationisshownasfollowed．First，anoveralllookoftheCCHPmicrogridispresented．Mathematicalmodelofmicroturbine(MT)，photovoltaic(PV)andbatteryareestablished．Costfunctionof

5、unitcapacityofM乃varyingfunctionwhichshowsthepowergenerationefficiencyandthermalefficiencychangewitIltheloadratioareintroduced．ThediscretizationofKiBaM(KineticBatteryModel)modeliscarriedoutforthesakeofoptimization．ProbabilitymodelisadoptedtodealwithPVtofitthestochasticsimulation．Seco

6、nd，thesolutionalgorithmappliedintheCCHPmocrogridisintroducedandperformanceindexesofCCHPareproposedtoevaluatetheminimulTlcosts，theminimumemissionofC02andtheminimumconsumptionofprimaryenergy．ThusthemodelofoptimalplanningandoperationofCCHPmicrogridisestablished．Last，Monte—Carlostochast

7、icsimulationisadoptedtodeal、)I，imtheuncertaintyofPVandload．Thesimulationcarriedoutinthisdissertationhasthreeconfigurationschemes．Theresultsshowthedifferentinfluencesofthecooling，heatingandpowerloadonthesystemunderdifferentvariance．Meanwhile，thefunctionofthebatteryandthethermalstorag

8、etankarealsoanalyze