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1、AbstractMicrogridisasmallautonomouspowerdistributionsystem，includingdistributedgeneration，energystoragedevicesandloads．Microgridtakestheadvantagesofdistributedgenerationwhileweakeningthenegativeeffectsofdistributedgenerationonthegrid，Microgridhastheadv
2、antageofhighpowersupplyreliability，flexibility，economyandenvironmentallyfriendly．However，themicrosourcesinmicrogridaresignificantlyinfluencedbynaturalconditions，resultingintheirrandom，intermittentanduncontrollableoutputpower·IteasilYcausesvoltagefluctu
3、ations，especiallyforthemicrogridthatisoperatedinisland·Therefore，microgridusuallyconsistsofacertaincapacityofenergystorageunttandreactivecompensationdevicetomaintainthesystemvoltagestability，whichresultsintheincreaseofpowergridconstructioncost．Resident
4、ialcontroilableloadssuchasthermostaticallycontrolledloads(TCL)arethermalenergystorageequipment，whichcanstoreenergyforseveralmmute8o。evenhoursandcansubstitutetraditionalenergystoragesystem·Inaddirion，comparedtotheresourcesingenerationside，Residentialloa
5、dsareextremelydecentralized，whichcanprovidereservetomakerapidresponseinJustafewminutesor1ess．Therefore，responsemadebyresidentialcontrollableloadsissignificanttoimprovethemicrogridoperatingcharacteristicsanditsVoItagestabilitvcontr01．Focusingonresidenti
6、alcontrollableloadsrespondingtothevoltagetoimprovethevoltagestabilityinmicrogrid，thispapermakesthemamcontributionswhicharelistedasfollowing：First．thispapersummarizestheconcept，basicstructureandcontroltechnologyofmicrogrid．Also，thecurrentstatusofmierogr
7、idhasbeenreviewedandtheapplicationstatusofresidentialcontrollableloadsinthemicrogridhasbeenconcluded．Second，thepaperresearchesthefeasibilityofresidentialcontrollableloadsmakingresponsetothemicrogridvoltageis．Then，basedontheaboveanalysis，controlstrategy
8、forresidentialcontrollableloadstorespondtothemicrogridvoltageisproposed。Throughthecontrolstrategy，residentialcontrollableloadsmakesresponsetothesystemrequirementactivelybychangingthetriggertemperatureofthecontrolsystem，providingmicrogri
