电力专业英语5变电站综合自动化

电穷奪裴英醫电气工程学院•变电站综合自动化：•IntegratedSubstationAutomation45-2SubstationAutomationpriorto90’s•Substationautomation:thecreationofahighlyreliable,selfhealingpowersystemthatrapidlyrespondstorealtimeeventswithappropriateactions,ensurestomaintainuninterruptedpowerservicestotheendusers，•变电站（综合）自动化：以创建高可靠性，自愈的电力系统。能够通过必要的控制措施，快速响应实时事件，保证对用户的不间断供电。变电站设备•主变压器：maintransformer•母线：busbar•断路器：circuitbreaker•电压/电流互感器：voltage/currenttransformer•无功补偿装置：reactivecompensation电容器组：capacitorbanks电力电子器件：静止无功补偿设备STATCOM,SVC,TCSC•测量表计•保护，自动装置，SCADA…45-4•Functions:■Protectionrelaysfortransformers,busbars,out-feeds,...■Stationcontrol,meteringanddisplay■SCADA•能*■变压器保护，母线保护，线路（出线）保护■站控设备，表计，显示■SCADA45-5去显示r经测量装置测量rtnnriit.45-645-7PowerWorldVisualizationin40,000MWTVAControlRoom45-8DefinitionofSubstationAutomation•Obtainsupervisorycontrolanddataacquisition(SCADA)atthesubstation.Thesubstation’sfunctionandoperationcanbemonitoredandcontrolledfromaremotelocation.Communicationcanbemadeviamodem,high-speedcommunicationlines,andfiberopticcables.实现SCADA功能(数据采集和监视控制)可以远方实现站内功能和操作的监视和控制。可通过高速通信信道或光纤实现站间及与调度的通信•Usemicroprocessor-basedrelaystoperformonlinemonitoringandcontroloperations.•使用数字式保护（或称为微机保护）实现监视和控制•Digitalprotection45-10•Convertthetraditionalswitchboardlooktoagraphicaluserinterface(GUI)accessiblethroughthestationPC.Ilf将传统的操作盘转换为可以通过站控计算机操作的图形交互接口•GUIusesvarioussensorstocollectperformanceandconditioninformationonessentialstationequipmentandstorestheinformationforfuturereference，•GUI通过各种传感器采集站内设备的实时运行信并可实现信息存储。45-12PracticalApplicationsinChina—threeprojectsLegacysubstationautomationCircuitbreakerElectromagneticvoltage/currenttransformerSubstationautomationsystemLegacy俺统35kVsubstation45-14DigitalsubstationautomationIntelligentelectronicdevicesIED智能测控装置35kVsubstation45-15IEDCollectinformationofcircuitbreakerandswitches’positionandsendthemtotherelays.采集变电站和开关的位置信息，送至保护装置Receivetrip/closecommandsfromrelaystocontrolthecircuitbreaker从保护接收跳闸/合闸命令，控制断路器>Installation:outsidethecontrolroomandclosetothecircuitbreaker安装在_室外断路器附近（节省电缆投资）35kVsubstation45-16TheIEDalsoenabledredundantequipmenttobeeliminated,asmultiplefunctionswereintegratedintoasinglepieceofequipment.Forexample,wheninterfacedtothepotentialtransformersandcurrenttransformersofanindividualcircuit,theIEDcouldsimultaneouslyhandleprotection,meteringandremotecontrol.采用IED,可以消除功能重复的设备，因为多种功能集成在同一个设备里。例如：当与某线路的电压变换器和电流变换器接口时，IED可以同时实现保护，计量和远程控制所需的实时测量。45-17ConfigurationSubstationlevel变电站层ControlcenterwithinthesubstationBaylevel•:MBU;;•卜：■雪■ibi：•••■雪：HIMI:；

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