基于储能的微电网蓄电池性能分析与研究

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1、ABSTRACTANALYSISANDRESEARCHoFBATTERYPERFoRMANCEBASEDONTHEMICROGRIDENERGYSToRAGEMicropowergridisacombinationofelectricityloadandaflexiblecontrolofsmalldistributedpowergrid，themicrogridcanrunwithpowergridnetworkandalsorunindependentwiththemainpowerdisconnect．Based

2、onthedistributedgenerationtechnologyofmicrogrid，notonlyincreasethecapacityofpowersupplysystemeffectively，butalsorenewabletheenergydevelopmentandutilization．Itisthenewdirectionofthepowersystemdevelopmentintheworld．Microgridcanbeworkedonthetwokindsofmode，islandorc

3、onnectwithpowergridnetwork．howtotransitionbetweenmetwokindsofoperationmodesafetyandsmoothisthekeytomicrogridoperation，thatrequirementsthecontrolofthemicrogridsystemhadahighlevel．Micropowergridofthedistributedpowersupplyisintermittent，inertiaandsmallfaults，energy

4、storageisthemosteffectivewaytosolvetheseshortcomings，inordertoensurethereliabilityofpowersupplyandthenormaloperationofthesystem，SOtheenergystoragedeviceisnecessary．Themicrogridcontrolmethodandtheenergystorageelementcolloidlead—acidbatteryarethemaintopicoftherese

5、arch，atfirstthispaperintroducethecomposeofdistributedpowerofmicrogridconcept，structure，andclassification；Thenthemicrogridinverternetworksystemmodelareanalyzed；Inthispaper，wemainlystudythemicrogridcontrolstrategybasedongridinverter，respectivelyinthemicrogridinter

6、connectionandtheislandsofthecontrolstrategyoftwooperatingmodesarediscussedinthispaper．Thesismainlydonethefollowingwork：1．Startingfromthecontrolofthemicroinverterpowersupply，micropowergridofthemaster—slavecontrolstrategywasstudiedanddiscussed；Micropowersystemcont

7、rol华北水利水电大学硕士学位论文一—————————————————————————————————————————————————————————————————一————————————————————————一methodisexpounded，andthecompositionofthetypicalmaster—slavecontrolmodel．2．Theequivalentcontrolmethodmainlyusedinthemicrogridisolated．Accordingtothepartic

8、ularityofmicronetworksystem，themicrosourceinverterareusingdroopcontrol(P．fandQ-Vcontr01)inttlispaper，whentheloadchangesusingthelocalinformationtocoordinateadistribute