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Introduction toIEC 62361-102 CIM - 61850 HarmonizationDraft for Paper 1368 CIRED 2019Tom BerrySchneider ElectricConfidential Property of Schneider Electric

AgendaProblemDefinitionsApproachUse caseContainers and EquipmentMeasurementsSettingsFurther workConfidential Property of Schneider Electric Page 2

The Problem #1Power systems are complex – multiple groups have worked on different aspectsFor historical reasons, IEC standards are based on several different models: IEC 61850 for substation automation and other device level applications Common Information Model CIM (IEC 61970, IEC 61968, IEC 62325) for control centreapplications Companion Specification for Energy Metering (COSEM) for meteringReference: IEC 62357-1 TR: Power systems management and associated information exchange –Part 1: Reference architectureConfidential Property of Schneider Electric Page 3

The Problem #2Data models and harmonizationIEC 61970-301 CIM Base ("Wires")IEC 61968-11 Distribution ManagementIEC 62325-301 MarketsIEC 62056-6-921IEC 61850-7-4 Substation, FeederIEC 61850-7-410 Hydro-electricIEC 61850-7-420 DER 3IEC 61850-80-4IEC 62056Scope of IEC 62361-102Confidential Property of Schneider Electric Page 4

IEC 61850 Communication Networks and Systems for Power Utility AutomationDesign aim: inter-operability for communication between field devicesFeatures Hierarchal data model System Configuration Language (SCL) Abstract Communication Services Specific communication technologies Client-server servicesHigh speed eventsSampled valuesMappings to IEC 60870-5-104or IEEE1815 (DNP) Confidential Property of Schneider Electric Page 5

Common Information ModelDesign aim: facilitates the integration of EMS, DMS and other control centre applications “an abstract model that represents all themajor objects in an electric utility enterprisetypically needed to model the operationalaspects of a utility as well as therelationships between them” IEC 61970-301 defines the CIM Base set ofpackages functional aspects of anEnergy Management System includingSCADA Typical application - state estimationConfidential Property of Schneider Electric Page 6

ApproachOne use case at a time Define a short list of use cases that link control center applications and substation automation Fundamental use case : Configuration of real time communication between substations and controlcentres ‒Extends the top-down engineering process described in IEC 61850 part 4 and 6‒Adds steps related to the network models within SCADA/EMS/DMS in the control centreDefine mapping between the two models Identify where the models overlap, and where they are different Make recommendations for revisions to reduce ambiguities and make transformations easierConfidential Property of Schneider Electric Page 7

Use case – principal actors and main stepsConfiguration of real time communication1. Planning department produces requirements2. IEC 61850 System Integrator Defines formal electrical model and export as System Specification Description (SSD) file Imports capability descriptions for Intelligent Electronic Devices (IEDs) and links to the electrical model Defines the communication configuration and export as System Configuration Description (SCD) file.3. Network model manager Transforms into a CIM based modelling tool for review Adds any additional CIM information Applies incremental update for the SCADA/EMS/DMS control centre systems4. Commissioning - verify all the communicationsConfidential Property of Schneider Electric Page 8

Use case – scope of the standardsConfiguration of real time communication WHERE is the measurement, WHAT does it mean IEC 62361-102 CIM - 61850 Harmonization(scope of this presentation)HOW, WHEN, WHY IEC 61850-90-2: Using IEC 61850 for communication between substations and control centres IEC 61850-80-1: Guideline to exchanging information from a CDC-based data model using IEC 608705-101 or IEC 60870-5-104 IEEE 1815.1 - Standard for exchanging Information between networks implementing IEC 61850 andIEEE Std 1815 [Distributed Network Protocol (DNP3)]Confidential Property of Schneider Electric Page 9

Data FlowsControl Centre CIMConfiguration #1 EquipmentConfiguration #2 Logical Nodes MeasurementsReal TimeSubstation IEC 61850.Confidential Property of Schneider Electric Page 10

IEC 61850 System Configuration description Language (SCL).SCL: “a file format for describing communication and parameters related to IED (Intelligent Electronic Device)configurations, communication system configurations, switchyard (function) structures, and the relationsbetween them” [IEC 61850-6]Specific subsets of the language are used for configuring a system or configuring individual IEDs.Sections in an SCL file Substation / Line / Processidentifies the equipment and associations to Logical Nodes in the IEDs IED Descriptionsthe logical nodes within each physical IED Communicationsconnections between IEDs Data Type Templatesdetails of the data modelsConfidential Property of Schneider Electric Page 11

Containers & Equipment identifiersSCL Substation sectionclass Equipment MappingSubstation equipment identification and one lineconnectivity description has a similar businessrequirement within IEC 61850 based systemengineering tools and within CIM basednetwork engineering tools.tNaming-name :tNamedesc :stringConfidential Property of Schneider Electric Page 12mRID :stringname :stringtPow erSystemResourceCIM::Pow onductingEquipmentCIM::ConductingEquipmentSCL defines equipment type codesRecommendation R2: The list of device typecodes should be extended to correspondbetter with the Common Information Model-tLNodeContainerThe mapping to CIM should be possible from aSSD description before any IEDs or LogicalNodes Types have been defined.CIM defines equipment type classesCIM::IdentifiedObj ecttConductingEquipment-typeSCL Equipment identificationCIM::BreakerCIM Equipment Identification

Status, Measurements and ControlsDescribed in the IED and Data Type Template sectionsIEC 61850 Logical Node a group of dataobjects (status, measurements controls,settings, description)class Measurement MappingtNaming-CIM and traditional SCADA protocols use datapoints with a value, quality and timename :tNamedesc :stringCIM::IdentifiedObj ectIED-CIM::RemoteUnitmRID :stringname :stringtLNodeContainerLogicalDev iceCIM::Pow erSystemResourcetPow erSystemResourceIEC 61850 allows systems to be designed andconfigured using fewer but more tCIM::MeasurementCIM::EquipmentDataObj ectCIM::RemoteSourceCIM::DiscreteSome data objects in some types of logical nodecorrespond with CIM M::DiscreteValuetConductingEquipment-SCL Equipment identificationConfidential Property of Schneider Electric Page 13CIM::BreakertypeSCL Status, Controland Settings dataCIM Measurement DataCIM Equipment Identification

Mapping Logical Nodes: exampleLogical NodesIEC 61850-7-4MMXUNode DescriptionIEC 61850-5Calculation of currents, voltages, powers andimpedances in a three-phase system.Associated CIM ClassesPIOC, PTOCInstantaneous over-current, time over-currentCurrentRelaySeveral instances of Analog(a subtype of ProtectionEquipment)BreakerXCBR, CSWI, SCBRThe LN “circuit breaker” covers all kind of circuitbreakers, able to interrupt short circuitsXSWI, CSWI, SSWIThe LN “switch” covers all kind of switching devices notable to switch short circuitsYLTC, ATCC, SLTC,AVCOTransformer tap changer, automatic tap changecontroller, tap changer supervision, automatic voltagecontrollerZCAP, ARCO, AVCOZGEN, AVCOARCO controls reactive power flowAVCO controls voltageInformation exchange with generatorsSwitch, Disconnector, rSeriesCompensatorGeneratingUnitZSMCHolds rating data for any type of synchronous machine.SynchronousMachineConfidential Property of Schneider Electric Page 14

Mapping Data Objects for Status and MeasurementsIEC 61850-7-4 defines over 600 status or measurement data objectsIEC 61970-301 and -452 define only 19 standard TotWMVMMXUTotVArMVMMXUAWYEDescriptionTotal real power in a threephase circuitTotal reactive power in a threephase circuitPhase currents(magnitude and angle)IEC 61970-301 orIEC gThreePhaseReactivePowerAnalogLineCurrent or PhaseCurrent 3 or more instancesof AnalogAngleMMXUPhVWYEPhase to ground voltages(magnitude and angle)CSWI,XCBR,XSWIPosDPCSwitch positionAngleSwitchPositionARCO,ATCC,AVCOAutoSPC[2 bits intermediate, open,closed, bad-state]Automatic/Manual operationAutomaticConfidential Property of Schneider Electric Page 15Subclass of CIMMeasurementPhaseVoltage3 or more instancesof AnalogDiscreteDiscrete

Mapping other Data Objects.Recommendation R13: CIM based standards should use selected IEC 61850 data object names asMeasurementType names.ORRecommendation R14: [Alternative to R13] add a new attribute in the CIM Measurement class calledIEC 61850 DataObject, which is an enumeration and the value will be any data object that is definedin IEC 61850Confidential Property of Schneider Electric Page 16

Mapping Data Objects for SettingsOptionally defined in SCL, or via real-time communications if supported by the IEDSome settings in IEC 61850 have direct equivalents in the CIMExample: logical node ATCC Automatic tap changer controllerData objectBndCtrDescription(ATCC) Centre of voltage control bandwidth(forward power flow presumed).CIM TCC) Control (secondary) voltage bandwidth(i.e., range), given either as voltage value orpercentage of the nominal voltage (forward powerflow presumed).(ATCC) Time to wait before operating, afterreaching the control point (forward power ipliertargetDeadbandCtlDlTmmsConfidential Property of Schneider Electric Page 17TapChangerinitialDelaysubsequentDelay

Further work Complete – mapping IEC 61850-7-4 LNs (groups A,C,S,X,Y,Z) to CIM classes Real time data objects & attributes Settings data objects and attributes Work-in-progress – Extend mappings with Logical Nodes for (groups D, M, W, more P, S, Z) IEC 61850-7-410 Hydro-electric & thermal power plants IEC 61850-7-420 Distributed Energy Resources IEC 61850-90-3 Condition Monitoring IEC 61850-90-6 Distribution Automation Systems Confidential Property of Schneider Electric Page 18

Further Work: Distributed Energy ResourcesDraft IEC 61850-7-420 Ed 2 is consistent with IEEE P1547. CIM model is incompleteIEEE 1547 Data RequirementActive power rating at unity power factor(nameplate active power rating)IEC 61850 -7-420DGEN.WMaxRtgApparent Power Maximum RatingDGEN.VAMaxRtgReactive Power Injected Maximum RatingDGEN.IvarMaxRtgReactive Power Absorbed Maximum RatingDGEN.AvarMaxRtgActive Power Charge Maximum RatingDSTO.ChaWMaxRtgApparent Power Charge Maximum RatingDSTO.ChaVAMaxRtgAC voltage nominal ratingDECP.VRefConfidential Property of Schneider Electric Page 19CIM bute or atingMachineratedSmaxQminQminPratedUratedU

Further Work: re-evaluate the CIM Protection Model use the same protection functions as IEC 61850class Protection Ov erCurrentEquipmentSwitchCIM::ProtectedSw ent includesfunctionality of logical node PTRCfor combining the outputs ofindividual protection functions toproduce a single trip OCPTOVPTOFPDISRDIRetcConfidential Property of Schneider Electric Page 20Over currentOver voltageOver frequencyDistance protectionDirection settingsPDISPTOFP.

IEC 61850 System Integrator Defines formal electrical model and export as System Specification Description (SSD) file . connectivity description has a similar business requirement within IEC 61850 based system . Settings data objects and attributes Work-in-progress -Extend mappings with Logical Nodes for (groups D, M, W, more .