微网分布式电源优化配置研究

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1、万方数据华北电力大学硕士学位论文AbstractWiththeincreasingseriousenergycrisisandenvironmentalpressure，thedevelopmentandutilizationofrenewableenergyisthedevelopmentaltrendofnewenergystrategy．Micro-gridwhichcombineddispersedanddifferenttypesofdistributedgenerationsiSalleffe

2、ctivewaytogivereintotheeffectivenessofdistributedgenerationsandtosolvetheproblemofgridconnecteddistributedgenerationsystem．However,facingthegradualaccesstothedistributedgenerationsinthegrid，thereasonableallocationoftypeandcapacityfordistributedgenerations

3、hastheimportantsignificanceinensuringthereliabilityofthemicro-grid，reducingitsconstructionandplanningcosts，andimprovingtheenvironmentalfriendlinessofmicro—grid．Forthisreason，basedonthedomesticandforeignrelevanttheoryofcapacityallocationfordistributedgener

4、ations，andcombinedwiththeoperatingcharacteristicsofthemicro—grid，themainWOrksofthisdissertationareasfollows：(1)Forthestructureofstand-alonemicro-grid，thekeyfactorsthatinfluencetypeselectionandcapacityallocationareanalyzed．Theoptimalobjectiveistominimizeth

5、etotalnetpresentcost(NPC)ofthesystem，whichincludescapitalcostandoperatingcost．Inaddition，Homersoftwareisusedtooptimizethetypesandcapacityallocationofthesystem，midthesensitivitiesofinfluencingfactorsaresimulated．Thevalidityoftheanalysisisverified．(2)Forthe

6、stand—alonemicro—grid，theoptimalallocationofdistributedgenerationsiSstudied．Consideringtheeconomy．reliabilityandenvironmentalfriendlinessofthesystem，theeriectsofdifferentoptimalmodelsforoptimalallocationofdistributedgenerationsareanalysed．Theannualminimum

7、costofthesystemiStheoptimalobjective．whichconsidersthedifferentcombinationalmodesofcapitalcost，operatingcost，fuelcost，environmentalcostandreliabilitycost．Differentoptimalmodelsofoptimalallocationareestablished．Basedontheadaptiveweightparticleswarmoptimiza

8、tionalgorithm，theoptimalallocationsofdifferentoptimalmodelsaresimulatedbyusingtheprogrammablefunctionofMatlabsoftware．Thebalanceofpowerdemandisalsoverifiedunderthem．Thevalidityandfeasibilityofthemodelsareverified．(3