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1、外文资料翻译PowerSystemAutomationPowersystemintegrationistheactofcommunicationdatato,oramongIEDsintheI&Csystemandremoteusers.SubstationintegrationreferstocombiningdatafromtheIED′slocaltoasubstationsothatthereisasinglepointofcontactinthesubstationforalloftheI&Cdata.Poletopdevicesoftencommunicatetothe
2、substationviawirelessorfiberconnections.Remoteandlocalsubstationandfeedercontrolispassedthroughthesubstationcontrolleractingasasinglepointofcontact.Somesystemsbypassthesubstationcontrollerbyusingdirectconnectionstothepoletopdevices,suchasRTUs,protectiverelays,andcontrollers.Powersystemautomati
3、onistheactofautomaticallycontrollingthepowersystemviaI&Cdevices.SubstationautomationreferstousingIEDdata,controlandautomationcapabilitieswithinthesubstation,andcontrolcommandsfromremoteuserstocontrolpowersystemdevices.Sincetruesubstationautomationreliesonsubstationintegration,thetermsareoftenu
4、sedinterchangeably.Powersystemautomationincludesprocessesassociatedwithgenerationanddeliveryofpower.Asubsetoftheprocessdealwithdeliveryofpowerattransmissionanddistributionlevels,whichispowerdeliveryautomation.Together,monitoringandcontrolofpowerdeliverysysteminthesubstationandonthepoletopreduc
5、etheoccurrenceofoutagesandshortenthedurationofoutagesthatdooccur.TheIED′s,communicationsprotocols,andcommunicationsmethodsdescribedinprevioussections,worktogetherasasystemtoperformpowersystemautomation.Thougheachutilityisunique,mostconsiderpowerdeliveryautomationoftransmissionanddistributionsu
6、bstationandfeederstoinclude:SupervisoryControlandDataAcquisition(SCADA)-operatorsupervisionandcontrol;DistributionAutomation-faultlocation,auto-isolation,auto-sectionalizing,andauto-restoration;SubstationAutomation-breakerfailure,reclosing,batterymonitoring,deadsubstationtransfer,andsubstation
7、loadtransfer;EnergyManagementSystem(EMS)-loadflow,VARandvoltagemonitoringandcontrol,generationcontrol,transformerandfeederloadbalancing;Faultanalysisanddevicemaintenance.Systemwithoutautomatedcontrolstillhavetheadvantagesofremotemonitor
