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Interoperability with IEC 61850. IEC 61850 INTEROPERABILITY BETWEEN ABB, ALSTOM and SIEMENS STATUS REVIEW November 2002. IEC 61850 the global standard for communication in substations. Support for IEC 61850.
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Interoperability with IEC 61850 IEC 61850 INTEROPERABILITY BETWEEN ABB, ALSTOM and SIEMENS STATUS REVIEW November 2002 IEC 61850 the global standard for communication in substations
Support for IEC 61850 • ABB, Alstom and Siemens (A-A-S) are deeply engaged in the elaboration of the IEC 61850 standard. • Each of these companies will implement IEC61850 in its power automation products and systems. • A roadmap for the staged implementation of IEC 61850 has been defined in line with the progress of the standard. • To verify the implementation of IEC61850 of all three suppliers, joint interoperability tests have been specified. • The first test step has now been completed successfully.
IEC 61850 Interoperability in two phases Specification level Typical functions of a substation automation system Phase1 Phase 2 Best practice used for the implementation with respect to the standard. Phase 1 (P1): Basic functions GOOSE* Phase 2 (P2): Advanced functions *GOOSE: Generic Object Oriented Substation Event
Schedule of activities Committee draft Committee draftfor vote International Standard Final draft International Standard IEC 2000 2001 2002 2003 2004 IEC 61850 The way to interoperable substation automation 2000 2001 2002 2003 2004 Test P2a Test P2b Test P1 Kickoff Further interoperability tests First interoperability tests of bay devices A-A-S
What is GOOSE? • GOOSE (Generic Object Oriented Substation Event) • It is a mechanism for the fast transmission of substation events, such as commands, alarms, indications, as messages • A single GOOSE message sent by an IED * can be received and used by several receivers • GOOSE takes advantage of the powerful Ethernet and supports real-time behaviour • It is used for e.g. • tripping of switchgear • starting of disturbance recorder • providing position indication for interlocking * IED: Intelligent Electronic Device
IEC 61850 GOOSE Principle One device (sender) publishes information, only the subscriber devices are receiving it.The reaction of each receiver depends on its configuration and functionality. GOOSE ReceiverDevice Y EXAMPLE: GOOSE Sender Device X Ethernet GOOSE message GOOSE ReceiverDevice Z
Test configuration of phase 1 100 Mbit/s redundant switched Ethernet ring GOOSE messages KEMA UniCA- IEC61850 GOOSE Simulator Network Analyser KEMA UniCA- IEC61850 Analyser GOOSE: Generic Object Oriented Substation Event
Substation Configuration Language (SCL) SCL is the basis for thesuccess of Plug & Play SCL provides a common object and configuration description SCL file distributed and agreed by A-A-S via email Result of Phase 1 Test: Plug & Play!
Tripping via GOOSE GOOSE message with commands for CB * tripping and disturbance recorder startingConfiguration: sender X --> receiver Z GOOSE ReceiverDevice Y GOOSE „Y does not react“ Injection test device GOOSE Sender Device X Fault Simulation GOOSE ReceiverDevice Z „CB* off“ Ethernet „Z starts itsdisturbance recording“ * CB = Circuit Breaker
Negative tests GOOSE message with commands for CB tripping and disturbance recorder startingConfiguration: sender Y --> receiver Z not configured Injection test device GOOSE SenderDevice Y Fault simulation GOOSE GOOSESender Device X GOOSE ReceiverDevice Z Ethernet „no reaction“
Positive tests GOOSE message with commands for CB tripping and disturbance recorder startingConfiguration: sender Y --> receiver Z Injection test device GOOSE SenderDevice Y Fault simulation GOOSE GOOSE Sender Device X GOOSE ReceiverDevice Z „CB off“ Ethernet
Performance tests: Background traffic KEMA UniCA- IEC61850 GOOSE Simulator Produced 10, 50,150, 300 GOOSE messages within 50ms Heavy busload 100 Mbit/s redundant switched Ethernet ring GOOSE ReceiverDevice Y GOOSE Sender Device X GOOSE ReceiverDevice Z measured time Fault CB off
Performance tests: Device load KEMA UniCA- IEC61850 GOOSE Simulator Produced 10, 50,150, 300 GOOSE messages within 50ms Heavy busload Heavy device load 100 Mbit/s redundant switched Ethernet ring GOOSE ReceiverDevice Y GOOSE Sender Device X GOOSE ReceiverDevice Z measured time Fault CB off
Phase 1: Performance tests Software implementation The transmission time was dependent of today`s software implementation.Bus load or device load had no major effect.
Interoperability test concept • Number of tests • Positive tests 9 Correct message transmission between configured senders and receivers • Negative tests (selectivity & security) 9Message ignored by non-configured receiver • Degraded tests (quality, testmode...) 10No reaction to faulty or test messages in all receivers • Performance / Load tests 11Response times measured with different background loads
Test results Number of test cases Experience from the rejected resp. dismissed test cases was used to improve the IEC 61850 specification and implementation.
A week of successful work The teams from A-A-S
Conclusion • An important part of the standard was tested successfully • 39 cases have been tested within one week • The standardisation documents are well defined • Three major companies in the substation and substation automation business are on track with their implementation of IEC 61850A-A-S is on track - and on the right way