微网运行优化方法分析

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1、-------华北电力大学硕士学位论文AbstractThedevelopmentofdistributedgenerationisgettingbetter.Andasawayto realizethedistributedgenerationtechnology,Microgridtechnologyisalsochanging alongwitheverydaypassing.Microgridhascausedworldwideattentionbecauseit caneffectivelyusethenewenergyandrenewabl

2、eenergy,andprovidestechnical supportforthegrid-connectedapplicationofthenewenergyandrenewableenergy generation.Microgridintegratesmicrosourcesandinternalloads,andfacilitatesthe schedulingmanagementofmaingridasanintelligentcontrollableunitforweakening thedrawbacksofdistributedpow

3、ergridconnectionalone.Microgridcanprovide electricenergyofhighreliabilityandqualityfortheinternalload.Furthermore, Microgridensuresthedemandofgridinternalloadwhenmajornaturaldisastersor accidentsoccur.Itneedsmatureoperationandmanagementtechnologytoachieve theseMicrogridfunctions

4、.SotheoptimizationofMicrogridoperationisthekeyof thewholemicrogridresearch.Thispaperstudiestheeconomicloaddistributionand operationoptimizationmethodofMicrogrid.Firstly,thispaperintroducesthecurrentstatusofmulti-objectiveoptimization operationresearchinMicrogrid,discussestheesta

5、blishmentofthemicrogridsystem economicoperationoptimizationmodelandoptimizationalgorithm.Secondly，it bringstheuniversalgravitationsearchalgorithmintotheoperationofthemicrogrid optimization,andmakesitmoreappropriatetosolvetheproblem.Thirdly,structure characteristicsofMicrogridits

6、elf,andfeaturesofmicrosourcesaretakeninto considerationinthispapertoestablishthemathematicalmodelwhichmeetsthe requirementsofoperationproblems.Inthemeantime,multipleobjectivefunctions andmultipleconstraintsarealsoconsideredtoestablishthemathematicalfunctions forMicrogridoptimiza

7、tionoperation.Thispaperimplementsmultipleimprovements ongravitationalsearchalgorithmtomakeitsuitableforMicrogridoperation optimizationproblems,thesimulationanalysisprovesthattheimprovedgravitational searchalgorithmprovidesagoodsolutionfortheeconomicoperationoptimization problems

8、ofMicrogrid.Fortherealizationofbettercontrolfor