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IEC 61850 for Power SystemCommunicationChristoph BrunnerSwitzerlandK02 03 20060309Page: 1K02 03 20060309Content What is IEC 61850? Where in the power system can IEC 61850 beused? The basic features A use case for IEC 61850 Communication between substations Harmonization with CIMIEEE T&D 2008 ChicagoPage: 21
What is it? a standard for information exchangeHMI, StationcontrollerControl CenterRouterSerial lerRelayX1RelayX2Serial T/VTIntelligentSwitchgearNonconventionalCT/VTIEEE T&D 2008 ChicagoPage: 3IEEE T&D 2008 ChicagoPage: 4What is it? replacing wires between IEDs2
What is it? domain specific object PTOCCSWISecondarytechnologyPrimary technologyIEEE T&D 2008 ChicagoPage: 5What is it? a set of files with configuration ionDescriptionDeviceDeviceCapabilityCapabilityIEEE T&D 2008 ChicagoPage: 63
Where can it be used? Substation automation and protection Control of hydro power plants Control of windpower plants Interface to distributed energy resources Communication between substations Communication between control centers andfield devicesIEEE T&D 2008 ChicagoPage: 7Features – data lectronic RMATION EXCHANGEdefined in IEC 61850-7-2DATA MODELdefined in IEC61850-7-4 and -7-3IEEE T&D 2008 ChicagoPage: 84
Features – data modelXCBRData pnBlkClsChaMotEnaDPCSPCSPCSPCExplanationenable / disableok / warning / alarmName plateoperation counterPosition (control / status)Block openingBlock closingCharger motor enabledCBOpCap INS op. capability (o-c.)POWCapINS point on wave capabilityMaxOpCap INS maximal op. capabilityTrCoilFail1TrCoilFail2HydrLeakSPS Failure of trip coil 1SPS Failure of trip coil 2SPS Leakage of hydraulicIEEE T&D 2008 ChicagoPage: 9ProtocolsApplicationACSI 61850-7-2Time criticalservicesClient / ServerservicesStack IFMMSASN.1ISO SessionRFC 1006TCPIPPriority tagging IEEE 802.1p/802.1QEthernet ISO/IEC 8802-3IEEE T&D 2008 ChicagoPage: 105
Configuration informationIEEE T&D 2008 ChicagoPage: 11Operate a breakerOperateOpen / CloseQE3QC1I0QE2QA1QE1Station ControllerBay ControllerT1QB1PositionIEEE T&D 2008 ChicagoPage: 126
Logical nodesQE3CSWII0QC1XCBRQE2CILOQA1QE1Station ControllerBay ControllerT1QB1IEEE T&D 2008 ChicagoPage: 13Data and data QC1QE2QA1QE1Station ControllerBay os.stValXCBR.Pos.qXCBR.Pos.tT1QB1IEEE T&D 2008 ChicagoPage: 147
Control modelClientServer (Control Object)Operated DeviceSelect (open)Select rsp SelectOperate (open)Operate rsp Activate outputActivation of devicemechanismbetweenopenAcquisition of statusfrom deviceReport (open)Deactivate outputCmdTermIEEE T&D 2008 ChicagoPage: 15Current and voltageCurrentwaveformCalculatedvaluesQE3QC1VA 220.1kVVB 220.2kVVC 220.1kVQE2QA1QE1Station ControllerBay ControllerT1QB1VoltagewaveformIEEE T&D 2008 ChicagoPage: 168
Data and data attributesA TCTR.Amp.instMagB TCTR.Amp.instMagC hV.phsB.cVal.magVA 220.1kVMMXU.PhV.phsC.cVal.magQE2VB 220.2kVVC 220.1kVQA1QE1Station ControllerBay ControllerA TVTR.Vol.instMagB TVTR.Vol.instMagT1QB1C TVTR.Vol.instMagIEEE T&D 2008 ChicagoPage: 17Sampled valuesA TCTR.Amp.instMagPublisher –Subscriber serviceB TCTR.Amp.instMagQE3C TCTR.Amp.instMagQC1QE2QA1sampled valuesQE1A TVTR.Vol.instMagBay ControllerT1B TVTR.Vol.instMagSubscriberPublisherQB1C TVTR.Vol.instMagIEEE T&D 2008 ChicagoPage: 189
The messageAbstractASN.1 encoded (ISO/IEC 8824-1 / pCntConfRevSmpSynchSamplesavPdunoASDUSeq of ASDUSeq ASDU1svIDsmpCntconfRevsmpSynchSeq of dataSeq ASDU2 TAG Len Val60 8180 1 2A2 7630 3680 7 “MSVCB01”82 2 2183 4 285 1 287 12[A TCTR.Amp.instMag][B TCTR.Amp.instMag][C TCTR.Amp.instMag]30 36 4 Byte4 Byte4 ByteIEEE T&D 2008 ChicagoPage: 19IEC 61850-90-1Communication between Substations Protection functions Differential protection Distance protection with permissive and blockingschemes Directional and phase comparison protection Transfer tripping Control function Autoreclosing Interlocking Generator and load sheddingIEEE T&D 2008 ChicagoPage: 2010
Communication trTunnelingapproachContrProtProtContrIEEE T&D 2008 ChicagoPage: 21Application examplePermissive underreach with transfer tripZone 2 (Overreach)Zone 1 (Underreach)Zone 2 (Overreach)Zone 1 (Underreach)PermitZone 1Zone 2PermitZone 1CommChannel&ORTrip BrkTrip BrkOR&Zone 2IEEE T&D 2008 ChicagoPage: 2211
Modeling in IEC 61850Gateway approachPermitZone 1Zone 2PermitOR&Trip BrkTrip BrkRTPCPDIS1PSCHZone ntPTRCZone ntTrip BrkPTRCTrip BrkProtection IEDProtection IEDIEEE T&D 2008 ChicagoPage: 23Modeling in IEC 61850Tunneling approachPermitZone 1Zone 2PDIS1PSCHPermitZone 1CommChannelOR&Trip BrkTrip BrkOR&PermitPermitPDIS2PTRCProtection IEDZone 2Trip BrkTrip BrkPDIS1PSCHPDIS2PTRCProtection IEDIEEE T&D 2008 ChicagoPage: 2412
IEC 61850-90-2Access to SubstationHost withProxyLD1Station BusIED “ A“LD1LD2LD2IED “ B“LD5LD6LD5LD6IEEE T&D 2008 ChicagoPage: 25Harmonization with CIM Eliminate duplicate entry of configurationinformation Seamless data access of CIM and 61850 dataat run time Establish the link between The attribute of a data in the IEC 61850 model The corresponding information in the CIM No specific configuration shall be required to createthat link; i.e. all shall be based on the modelsdefined in the two standards This shall include a unambiguous mapping ofdifferent data types where requiredIEEE T&D 2008 ChicagoPage: 2613
HarmonizationIEEE T&D 2008 ChicagoPage: 27Information modelsIEC 61968 / 61970IEC 61850-6ConfigurationIEC 61850-7Run TimeIEEE T&D 2008 ChicagoPage: 2814
Harmonization strategies What needs to be achieved? Exchange configuration information for both thesubstation automation system as well as the O&Menvironment between these two environments – noduplicate manual entry of the same information Exchange of run time information – automaticmapping of the information between the modelsÎ Relation between CIM and IEC 61850 needsto be described unambiguously and machinereadableIEEE T&D 2008 ChicagoPage: 29Conclusions IEC 61850 is well accepted by the powerindustry as communication standard withinthe substations Standards based on IEC 61850 are inpreparation for several areas of powergeneration IEC 61850 will be the future standard forcommunication in the power systembetween field devices and from field devicesto control centersIEEE T&D 2008 ChicagoPage: 3015
substation automation systemas well as the O&M environment between these two environments - no duplicate manual entry of the same information Exchange of run time information - automatic mapping of the information between the models ÎRelation between CIM and IEC 61850 needs to be described unambiguously and machine readable
