微网运行优化方法-研究

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1、华北电力大学硕士学位论文AbstractThedevelopmentofdistributedgenerationisgettingbetter.Andasawaytorealizethedistributedgenerationtechnology,Microgridtechnologyisalsochangingalongwitheverydaypassing.Microgridhascausedworldwideattentionbecauseitcaneffectivelyusethenewenergyandrenewableenergy,andp

2、rovidestechnicalsupportforthegrid-connectedapplicationofthenewenergyandrenewableenergygeneration.Microgridintegratesmicrosourcesandinternalloads,andfacilitatestheschedulingmanagementofmaingridasanintelligentcontrollableunitforweakeningthedrawbacksofdistributedpowergridconnectional

3、one.Microgridcanprovideelectricenergyofhighreliabilityandqualityfortheinternalload.Furthermore,Microgridensuresthedemandofgridinternalloadwhenmajornaturaldisastersoraccidentsoccur.ItneedsmatureoperationandmanagementtechnologytoachievetheseMicrogridfunctions.SotheoptimizationofMicr

4、ogridoperationisthekeyofthewholemicrogridresearch.ThispaperstudiestheeconomicloaddistributionandoperationoptimizationmethodofMicrogrid.Firstly,thispaperintroducesthecurrentstatusofmulti-objectiveoptimizationoperationresearchinMicrogrid,discussestheestablishmentofthemicrogridsystem

5、economicoperationoptimizationmodelandoptimizationalgorithm.Secondly，itbringstheuniversalgravitationsearchalgorithmintotheoperationofthemicrogridoptimization,andmakesitmoreappropriatetosolvetheproblem.Thirdly,structurecharacteristicsofMicrogriditself,andfeaturesofmicrosourcesaretak

6、enintoconsiderationinthispapertoestablishthemathematicalmodelwhichmeetstherequirementsofoperationproblems.Inthemeantime,multipleobjectivefunctionsandmultipleconstraintsarealsoconsideredtoestablishthemathematicalfunctionsforMicrogridoptimizationoperation.Thispaperimplementsmultiple

7、improvementsongravitationalsearchalgorithmtomakeitsuitableforMicrogridoperationoptimizationproblems,thesimulationanalysisprovesthattheimprovedgravitationalsearchalgorithmprovidesagoodsolutionfortheeconomicoperationoptimizationproblemsofMicrogrid.Fortherealizationofbettercontrolfor

8、Microgrid,thispaperstudiestheunit