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Overview Of I E C61850 Presentation..... W S M



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  • 1. Overview of IEC 61850 and Benefits Ralph Mackiewicz SISCO, Inc. Marketing Subcommittee Chair UCA International Users Group
  • 2. Agenda • Brief Technical Overview of IEC 61850 • Benefits of IEC 61850 • UCA International Users Group – Users group for IEC 61850 – Interoperability Demo
  • 3. What is IEC 61850? • IEC61850 is a framework for substation automation that addresses more of what is required for interoperability of intelligent electronic devices (IEDs) beyond just the protocol: • Standardized object models and naming conventions • Standardized meaning of data • Standardized services and device behavior models • Self-describing devices • Common configuration language • Profiles for: – Control/SCADA – Protection messaging – Transducers and I/O
  • 4. Process Bus Process Bus Mappings (9-1, 9-2) •High-Speed Multicast of Sampled Measured Values (SMV) over Ethernet SCADA •For Instrumentation & Transducers Substation Host Station Bus IED1 IED2 IED3 Process Bus CT VT
  • 5. Station Bus Protocols Station Bus Mappings (8-1) •Layered Mapping (TCP/IP) for Data Acquisition and Control SCADA •High-Speed peer-to-peer messaging for protection Substation Host Station Bus IED1 IED2 IED3 Process Bus CT VT
  • 6. IEC 61850 Abstract Model Application Process Abstract Communication Common Abstract Device and Object Models Applications Service Interface (ACSI) SCSM 1 SCSM 1 SCSM 2 Specific Communication Protocol Protocol Protocol Service Mappings Stack 1 Stack 2 Stack 3 (SCSM) or “profile”
  • 7. Reference Models • Reference models divide the problem according to abstract data and service models. • Each layer of the model can be added to in the future without impacting other layers, providing a framework for future standardization
  • 8. IEC61850 – Abstract Layered Standard Device Object Models - IEC61850-7-3, 7-4 Device Model Data Objects Data Types Naming Conventions Abstract Communications Service Interface (ACSI) IEC61850-7-2 Associate Reporting Self-Description Control Data Set Logs Mapping to MMS Protocol - IEC61850-8-1 Initiate InfoReport. GetNameList Write VariableList Journals TCP/IP Protocol Stack Switched Ethernet
  • 9. IEC 61850 Reference Model • Isolation of application services and object models from underlying communications stack provides for ‘future proofing’ • New mappings can be developed to allow adoption of future technologies
  • 10. Logical Device Model IEC61850 Clients: • SCADA/HMI • Historian Station Bus • Bay Controls IEC61850 Server Physical Device Represents Logical 1 to N Logical Devices Logical a power Device Device system function Logical Node ... Logical Node Logical Node ... Logical Node Data … Data Data … Data Data … Data Data … Data Communications Driver Process Bus Field Signals Legacy Device
  • 11. Examples of Logical Nodes Breaker Current Transformer Breaker Voltage Transformer Breaker
  • 12. Anatomy of an IEC61850 Object Model Data Objects Feeder #1 Pos A Current Measurements Logical Nodes XCBR1 MMXU1 Circuit Breaker #1 Logical Device Position (e.g. Relay1) Measurements Circuit Breaker Physical Device (network address)
  • 13. IEC61850 Object Names Brand X Brand Y IOC Relay Diff Relay Measurements Measurements PIOC MMXU1 PDIF MMXU1 ST DC DC MX ST SG DC MX (status) (settings) (description) Mod Mod PhV PhV Mod Mod PhV PhV MMXU1$MX$PhV IEC61850-8-1 Name for phase-to-ground voltages
  • 14. Substation Configuration Language SCL – IEC 61850-6-1 • XML to provide a formal description of the substation automation system, the IEDs within the substation and the switchyard • SCL File Types: • SSD: System Specification Description. – XML description of the entire system. • SCD: Substation Configuration Description. – XML description of a single substation. • ICD: IED Capability Description. – XML description of items supported by an IED (required). • CID: Configured IED Description. – XML configuration for a specific IED.
  • 15. SCL Applications • For users to specify IED requirements. • For vendors to specify IED capabilities. • Configure clients without IEDs. • Extract IED configuration from power system design tools. • Export IED configuration to power system design tools and other applications. • Enable design tools from one vendor to work with another’s products
  • 16. IEC 61850 Multicast Relay-Relay Network Based Protection Station Bus Network GOOSE - GSSE Relay 1 Relay 2 Relay 3 Relay 4 Breaker Breaker Breaker Breaker GOOSE - Generic Object Oriented Substation Event (data sets) GSSE – Generic Substation Status Event (status only)
  • 17. IEC61850 Process Bus Bay Protection Fault RTU Controller Relay Recorder Ethernet Ethernet Ethernet Ethernet 9-2 Process Bus Ethernet Merging Unit (MU) A/D A/D Input Voltages Breaker and currents Status
  • 18. Benefits of IEC 61850
  • 19. IEC61850 is Unique • Not a recast serial RTU protocol and does not replace RTU protocols bandwidth limited apps. • Designed specifically for LANs to uniquely lower the cost to install, configure, and maintain substation devices. • Object-oriented with a broader scope : • Supports standardized device models using names instead of register numbers and indexes. • Abstract services with multiple protocol profiles. • Standardized configuration language (SCL). • Support for functions difficult to implement otherwise. • Conformance testing requirements defined
  • 20. The benefits of IEC 61850 include lower… • installation and maintenance costs with self- describing devices that reduce manual configuration. • wiring costs enabling more advanced protection capabilities via the use of direct exchange of data between devices over existing station bus. • communication infrastructure costs using readily available TCP/IP and Ethernet technology.
  • 21. The benefits of IEC 61850 include lower… • engineering and commissioning effort with standardized models and naming conventions that eliminates manual mapping of I/O signals to power system variables. • cost to configure and deploy devices with standardized device configuration files. • sensor and wiring costs via a high speed process bus that enables sharing of instrumentation signals between devices.
  • 22. Legacy Protocol Mapping Protocol objects must be manually mapped to power system functions for each different device, application, and vendor. Legacy Device Power System Functions R400040 R400041 R400042 Phase A Voltage R400043 Measurements Phase B Voltage R400044 Phase C Voltage R400045 Local/Remote Status R400046 Controls Breaker Position R400047 Blocked Open R400048 Activate Phase A R400049 Protection Activate Phase B R40004A Activate Phase C R40004B
  • 23. IEC61850 View of Devices Brand X Brand Y IOC Relay Diff Relay Measurements Measurements PIOC MMXU1 PDIF MMXU1 ST DC DC MX ST DC DC MX Mod Mod PhV PhV Mod Mod PhV PhV MMXU1$MX$PhV IEC61850-8-1 Name for phase to ground voltage
  • 24. IEC 61850 Object Mapping NO MANUAL MAPPING NEEDED IEC61850 objects already portray the power system context. IEC61850 Device LD MX.A.PhsA.cVal.mag.f MMXU1 MX.A.PhsB.cVal.mag.f MX.A.PhsC.cVal.mag.f ST.Loc.stVal XCBR1 ST.Pos.stVal ST.BlkOpn.stVal ST.Op.phsA PIOC1 ST.Op.phsB ST.Op.phsC
  • 25. What is involved in migrating to IEC 61850? • IEC 61850 can co-exist with protocols in a system, even running on the same network. • IEC61850 devices and clients are currently available for substation applications. • IEC 61850 gateways and data concentrators can be used to migrate existing systems and devices.
  • 26. Where Can You Get Help?
  • 27. UCAIug Mission • Advancing Interoperability for the Utility Enterprise via support for international standards: • Educational Activities • Help Desk • Improvement Process for International Standards • Testing and Certification • Promotional Activities
  • 28. Broad Technical Focus • Utility enterprises are complex and cross many functional boundaries • Promoting interoperability in the utility enterprise requires a similarly broad focus • UCAIUG uniquely offers members an organization to promote standardization across several functional areas
  • 29. UCAIug – Technical Focus • Communications • IEC 61850 – Substation Automation • IEC 61850 based extensions for wind, hydro, distributed generation, etc. • Application Integration • Common Information Model (CIM) IEC 61970 and IEC 61968 • Generic Interface Definition (GID) IEC 61970 • Metering and Demand Response • OpenAMI – Information/data models, reference designs and interoperability guidelines based on IntelliGrid and IEC standards. ONE MEMBERSHIP
  • 30. Bottom-Line Benefits • Test and certification activities that lower costs for users • Provide input to international standards activities at no additional cost and no travel • Members only access to: – Resolution of technical issues related to standards – Industry experts via a global help desk – Technical documents and best practices from existing users – On-line discussion forums • Discounts on paid seminars and exhibitions
  • 31. Demo in Booth #1164 14 UCAIug members are displaying IEC 61850 products interoperating on a common network in booth #1164 – Stop by and see it work for yourself – Ask questions…get answers
  • 32. Thank You Ralph Mackiewicz SISCO, Inc. 6605 19 1/2 Mile Road Sterling Heights, MI 48314 USA Tel: +1-586-254-0020 Fax: +1-586-254-0053 E-Mail: