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1、AbstractMicrogridisasmallautonomouspowerdistributionsystem，includingdistributedgeneration，energystoragedevicesandloads．Microgridtakestheadvantagesofdistributedgenerationwhileweakeningthenegativeeffectsofdistributedgenerationonthegrid，Microgridhastheadvantageofhighpowersupplyreliability，fle
2、xibility，economyandenvironmentallyfriendly．However，themicrosourcesinmicrogridaresignificantlyinfluencedbynaturalconditions，resultingintheirrandom，intermittentanduncontrollableoutputpower·IteasilYcausesvoltagefluctuations，especiallyforthemicrogridthatisoperatedinisland·Therefore，microgridus
3、uallyconsistsofacertaincapacityofenergystorageunttandreactivecompensationdevicetomaintainthesystemvoltagestability，whichresultsintheincreaseofpowergridconstructioncost．Residentialcontroilableloadssuchasthermostaticallycontrolledloads(TCL)arethermalenergystorageequipment，whichcanstoreenergy
4、forseveralmmute8o。evenhoursandcansubstitutetraditionalenergystoragesystem·Inaddirion，comparedtotheresourcesingenerationside，Residentialloadsareextremelydecentralized，whichcanprovidereservetomakerapidresponseinJustafewminutesor1ess．Therefore，responsemadebyresidentialcontrollableloadsissigni
5、ficanttoimprovethemicrogridoperatingcharacteristicsanditsVoItagestabilitvcontr01．Focusingonresidentialcontrollableloadsrespondingtothevoltagetoimprovethevoltagestabilityinmicrogrid，thispapermakesthemamcontributionswhicharelistedasfollowing：First．thispapersummarizestheconcept，basicstructure
6、andcontroltechnologyofmicrogrid．Also，thecurrentstatusofmierogridhasbeenreviewedandtheapplicationstatusofresidentialcontrollableloadsinthemicrogridhasbeenconcluded．Second，thepaperresearchesthefeasibilityofresidentialcontrollableloadsmakingresponsetothemicrogridvoltageis．Then，basedontheabove
7、analysis，controlstrategyforresidentialcontrollableloadstorespondtothemicrogridvoltageisproposed。Throughthecontrolstrategy，residentialcontrollableloadsmakesresponsetothesystemrequirementactivelybychangingthetriggertemperatureofthecontrolsystem，providingmicrogri
