IEC
61850
Interoperability with IEC 61850
INTEROPERABILITY
Tests
IEC 61850
INTEROPERABILITY BETWEEN
ABB, ALSTOM and SIEMENS
STATUS REVIEW November 2002
IEC 61850 the global standard for communication in substations
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IEC
61850
Support for IEC 61850
INTEROPERABILITY
Tests
 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.
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IEC
61850
IEC 61850 Interoperability in two phases
INTEROPERABILITY
Tests
Specification level
Phase1
Phase 2
Typical functions of a
substation automation
system
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
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IEC
Committee
draft
2000
Committee draft
for vote
2001
Final draft
International
Standard
2002
International
Standard
2003
2004
IEC
61850
The way to interoperable substation automation
2000
2001
2002
2003
2004
Test P2b
INTEROPERABILITY
Tests
Schedule of activities
Test P2a
IEC
61850
Further interoperability tests
A-A-S
First interoperability
tests of bay devices
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IEC
61850
What is GOOSE?
INTEROPERABILITY
Tests
 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
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One device (sender) publishes information, only the
subscriber devices are receiving it.
The reaction of each receiver depends on its
configuration and functionality.
EXAMPLE:
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
Ethernet
INTEROPERABILITY
Tests
IEC 61850 GOOSE Principle
GOOSE message
IEC
61850
GOOSE
Receiver
Device Z
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IEC
61850
Test configuration of phase 1
INTEROPERABILITY
Tests
100 Mbit/s redundant switched Ethernet ring
GOOSE messages
KEMA UniCAIEC61850 GOOSE Simulator
Network
Analyser
KEMA UniCAIEC61850 Analyser
GOOSE: Generic Object Oriented Substation Event
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IEC
61850
INTEROPERABILITY
Tests
Substation Configuration Language (SCL)
SCL is the basis for the
success 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!
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INTEROPERABILITY
Tests
Tripping via GOOSE
GOOSE message with commands for CB * tripping and
disturbance recorder starting
Configuration: sender X --> receiver Z
GOOSE
Receiver
Device Y
Injection test device
Fault
Simulation
* CB = Circuit Breaker
„Y does
not react“
GOOSE
Sender
Device X
Ethernet
IEC
61850
GOOSE
Receiver
Device Z
„CB* off“
„Z starts its
disturbance
recording“
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INTEROPERABILITY
Tests
Negative tests
GOOSE message with commands for CB tripping and
disturbance recorder starting
Configuration: sender Y --> receiver Z not configured
Injection test device
GOOSE
Sender
Device Y
Fault
simulation
GOOSE
Sender
Device X
Ethernet
IEC
61850
GOOSE
Receiver
Device Z
„no reaction“
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INTEROPERABILITY
Tests
Positive tests
GOOSE message with commands for CB tripping and
disturbance recorder starting
Configuration: sender Y --> receiver Z
Injection test device
GOOSE
Sender
Device Y
Fault
simulation
GOOSE
Sender
Device X
Ethernet
IEC
61850
GOOSE
Receiver
Device Z
„CB off“
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IEC
61850
Performance tests: Background traffic
INTEROPERABILITY
Tests
KEMA UniCAIEC61850 GOOSE Simulator
Produced 10, 50,150, 300 GOOSE
messages within 50ms
Heavy busload
100 Mbit/s redundant switched Ethernet ring
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
measured time
Fault
CB off
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IEC
61850
Performance tests: Device load
INTEROPERABILITY
Tests
KEMA UniCAIEC61850 GOOSE Simulator
Produced 10, 50,150, 300 GOOSE
messages within 50ms
Heavy busload
Heavy
device load
100 Mbit/s redundant switched Ethernet ring
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
measured time
Fault
CB off
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IEC
61850
Phase 1: Performance tests
INTEROPERABILITY
Tests
Software
implementation
Optimised
Average
0
5
10
15
20
25
30
Transmission time [ms]
The transmission time was dependent of
today`s software implementation.
Bus load or device load had no major effect.
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IEC
61850
Interoperability test concept
INTEROPERABILITY
Tests
Number of tests
 Positive tests
9
Correct message transmission between
configured senders and receivers
 Negative tests (selectivity & security)
9
Message ignored by non-configured receiver
 Degraded tests (quality, testmode...)
10
No reaction to faulty or test messages
in all receivers
 Performance / Load tests
11
Response times measured with different
background loads
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IEC
61850
Test results
dismissed
(standard)
rejected
(implementation)
accepted
40
35
30
25
20
15
10
5
0
Total tests
INTEROPERABILITY
Tests
Experience from the rejected resp. dismissed test
cases was used to improve the IEC 61850
specification and implementation.
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IEC
61850
A week of successful work
INTEROPERABILITY
Tests
The teams from A-A-S
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IEC
61850
Conclusion
INTEROPERABILITY
Tests
 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 61850
A-A-S is on track - and on the right way
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