ABB - SVC for enhancing of power transmission capability ove

ABB - SVC for enhancing of power transmission capability ove

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时间:2019-07-01

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1、SVCforenhancingofpowertransmissioncapabilityoverlongACinterconnectorANationalElectricityMarkethasbeenoperatinginsouthandeasternAustraliasince1999.Inanticipationofthismarketcommencing,QueenslandandNewSouthWales(NSW)agreedtoconstructasubstantialelectricityinterconnectionCairnsbetweenthetwosta

2、tes.Commercialservicestartedin2001.BraemarSVCBlackwallSVCAstheNSWtransmissionsystemwasalreadyconnectedtothestatesystemsinVictoriaandSouthAustralia(SA),thisTarongprojecthascompletedtheinterconnectionofthefourstatesSouthAustraliaQueenslandonAustralia´ssouthandeasternseaboard.Ithasestab-Brisba

3、nePortAugustaNewlishedoneoftheworld´slongestalternatingcurrentsystems,SouthWalesArmidalestretchingover4500kmfromCairnsinfarnorthQueenslandtoPortAugustainSouthAustralia,asshowninFig.1.VictoriaThepeakdemandinNSW,VictoriaandSAtogetherisabout01000km20.000MW.InQueensland,itisabout6.000MW.Thenewi

4、n-terconnectorhasaplannedtransfercapacityofupto1.000MWintoNSWand500MWintoQueensland.Fig.1:275/330/275kVpowerinterconnection,eastandsouthAustralia.TheinterconnectorTheformationofthenewinterconnectionbetweenpreviouslyTheInterconnectorconnectstheexisting275kVgridatseparatedsystemshasresultedin

5、themodificationofexistingTaronginsouthernQueenslandtotheexisting330kVgridinmodesofoscillation,aswellasthecreationofnewmodes.northernNewSouthWalesatArmidale.Itincludes560kmofOnesuchmodeischaracterizedbyQueenslandgenerators275kVand330kVdoublecircuittransmissionlines,substa-oscillatingagainstt

6、hoseinVictoriaandSAby0,3Hz.Ifthistions,aswellasStaticVarCompensators(SVC).TheSVCswasnotadequatelydampeditcouldpotentiallylimitpowerhavethepurposetoachievedynamicvoltagecontrol.Theytransferacrossthenewinterconnector.arealsoequippedwithpoweroscillationdampingcontrolstoenhancedynamicstability.

7、Andfurthermore,theycontrollocalControlofpowersystemdampingswitchedshuntlinereactors,aswell.Achievementofadequatepowersystemdampinghasde-pendeduponcoordinationofmanyfastactingcontrols.TheseTheinterconnectionbetweentheQueenslandandNSWnet-includepowersystem

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