電力專業(yè)英語5變電站綜合自動化

電窮奪裴英醫(yī)電氣工程學院?變電站綜合自動化：?IntegratedSubstationAutomation45-2SubstationAutomationpriorto90’s?Substationautomation:thecreationofahighlyreliable,selfhealingpowersystemthatrapidlyrespondstorealtimeeventswithappropriateactions,ensurestomaintainuninterruptedpowerservicestotheendusers，?變電站（綜合）自動化：以創(chuàng)建高可靠性，自愈的電力系統(tǒng)。能夠通過必要的控制措施，快速響應(yīng)實時事件，保證對用戶的不間斷供電。變電站設(shè)備?主變壓器：maintransformer?母線：busbar?斷路器：circuitbreaker?電壓/電流互感器：voltage/currenttransformer?無功補償裝置：reactivecompensation電容器組：capacitorbanks電力電子器件：靜止無功補償設(shè)備STATCOM,SVC,TCSC?測量表計?保護，自動裝置，SCADA…45-4?Functions:■Protectionrelaysfortransformers,busbars,out-feeds,...■Stationcontrol,meteringanddisplay■SCADA?能*■變壓器保護，母線保護，線路（出線）保護■站控設(shè)備，表計，顯示■SCADA45-5去顯示r經(jīng)測量裝置測量rtnnriit.45-645-7PowerWorldVisualizationin40,000MWTVAControlRoom45-8DefinitionofSubstationAutomation?Obtainsupervisorycontrolanddataacquisition(SCADA)atthesubstation.Thesubstation’sfunctionandoperationcanbemonitoredandcontrolledfromaremotelocation.Communicationcanbemadeviamodem,high-speedcommunicationlines,andfiberopticcables.實現(xiàn)SCADA功能(數(shù)據(jù)采集和監(jiān)視控制)可以遠方實現(xiàn)站內(nèi)功能和操作的監(jiān)視和控制?？赏ㄟ^高速通信信道或光纖實現(xiàn)站間及與調(diào)度的通信?Usemicroprocessor-basedrelaystoperformonlinemonitoringandcontroloperations.?使用數(shù)字式保護（或稱為微機保護）實現(xiàn)監(jiān)視和控制?Digitalprotection45-10?Convertthetraditionalswitchboardlooktoagraphicaluserinterface(GUI)accessiblethroughthestationPC.Ilf將傳統(tǒng)的操作盤轉(zhuǎn)換為可以通過站控計算機操作的圖形交互接口?GUIusesvarioussensorstocollectperformanceandconditioninformationonessentialstationequipmentandstorestheinformationforfuturereference，?GUI通過各種傳感器采集站內(nèi)設(shè)備的實時運行信并可實現(xiàn)信息存儲。45-12PracticalApplicationsinChina—threeprojectsLegacysubstationautomationCircuitbreakerElectromagneticvoltage/currenttransformerSubstationautomationsystemLegacy俺統(tǒng)35kVsubstation45-14DigitalsubstationautomationIntelligentelectronicdevicesIED智能測控裝置35kVsubstation45-15IEDCollectinformationofcircuitbreakerandswitches’positionandsendthemtotherelays.采集變電站和開關(guān)的位置信息，送至保護裝置Receivetrip/closecommandsfromrelaystocontrolthecircuitbreaker從保護接收跳閘/合閘命令，控制斷路器>Installation:outsidethecontrolroomandclosetothecircuitbreaker安裝在_室外斷路器附近（節(jié)省電纜投資）35kVsubstation45-16TheIEDalsoenabledredundantequipmenttobeeliminated,asmultiplefunctionswereintegratedintoasinglepieceofequipment.Forexample,wheninterfacedtothepotentialtransformersandcurrenttransformersofanindividualcircuit,theIEDcouldsimultaneouslyhandleprotection,meteringandremotecontrol.采用IED,可以消除功能重復(fù)的設(shè)備，因為多種功能集成在同一個設(shè)備里。例如：當與某線路的電壓變換器和電流變換器接口時，IED可以同時實現(xiàn)保護，計量和遠程控制所需的實時測量。45-17ConfigurationSubstationlevel變電站層ControlcenterwithinthesubstationBaylevel?:MBU;;?卜：■雪■ibi：???■雪：HIMI:；

??STS?-~間隔層ODS-385differentialODS-37backup???5ODS-3I6transmissionlineprotectionODS-326protectionforcapacitybanksOpticfiberOpticfiberOpticfiberOpticfiberProcesslevel35kVsubstationControlcenter(communicationmanagement)控制中心(通信管理器)>Communicationwithd