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INTEROPERABILITY Tests
IOP11/2002 1
IEC IEC 6185061850IEC IEC
6185061850 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
INTEROPERABILITY Tests
IOP11/2002 2
IEC IEC 6185061850IEC IEC
6185061850 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.
INTEROPERABILITY Tests
IOP11/2002 3
IEC IEC 6185061850IEC IEC
6185061850 IEC 61850 Interoperability in two phases
Specification level
Phase 1 (P1): Basic functions GOOSE*Phase 2 (P2): Advanced functions
Best practice used for the implementation with respect to the standard.
Phase1 Phase 2
Typical functions of a substation automation
system
*GOOSE: Generic Object Oriented Substation Event
INTEROPERABILITY Tests
IOP11/2002 4
IEC IEC 6185061850IEC IEC
6185061850 Schedule of activities
The way to interoperable substation automation
2002 2003 200420012000
2002 2003 200420012000
Further interoperability tests
Te
st P
2a
Te
st P
1
First interoperability tests of bay devices
Committee draft
Final draftInternational
Standard
InternationalStandard
Committee draftfor vote
Kic
koff
IEC IEC 6185061850IEC IEC
6185061850
IEC
A-A-S
Te
st P
2b
INTEROPERABILITY Tests
IOP11/2002 5
IEC IEC 6185061850IEC IEC
6185061850 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
INTEROPERABILITY Tests
IOP11/2002 6
IEC IEC 6185061850IEC IEC
6185061850 IEC 61850 GOOSE Principle
GOOSE Sender Device X
GOOSE Sender Device X
GOOSE ReceiverDevice Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice Z
Eth
ern
et
One device (sender) publishes information, only the subscriber devices are receiving it.The reaction of each receiver depends on its configuration and functionality.
EXAMPLE:
GO
OS
E m
essag
e
INTEROPERABILITY Tests
IOP11/2002 7
IEC IEC 6185061850IEC IEC
6185061850 Test configuration of phase 1
100 Mbit/s redundant switched Ethernet ring
KEMA UniCA-IEC61850 GOOSE Simulator
NetworkAnalyser
KEMA UniCA-IEC61850 Analyser
GOOSE messages
GOOSE: Generic Object Oriented Substation Event
INTEROPERABILITY Tests
IOP11/2002 8
IEC IEC 6185061850IEC IEC
6185061850 Substation Configuration Language (SCL)
SCL is the basis for thesuccess of Plug & Play
SCL provides a common object and configuration description
Result of Phase 1 Test: Plug & Play!
SCL file distributed and agreed by A-A-S via email
INTEROPERABILITY Tests
IOP11/2002 9
IEC IEC 6185061850IEC IEC
6185061850 Tripping via GOOSE
GOOSE Sender Device X
GOOSE Sender Device X
GOOSE ReceiverDevice Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice ZE
ther
net
FaultSimulation
GOOSE message with commands for CB * tripping and disturbance recorder startingConfiguration: sender X --> receiver Z
„Y does not react“
„Z starts itsdisturbance recording“
„CB* off“
Injection test device
* CB = Circuit Breaker
INTEROPERABILITY Tests
IOP11/2002 10
IEC IEC 6185061850IEC IEC
6185061850 Negative tests
GOOSESender Device X
GOOSESender Device X
GOOSE Sender
Device Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice ZE
ther
net
Faultsimulation
GOOSE message with commands for CB tripping and disturbance recorder startingConfiguration: sender Y --> receiver Z not configured
„no reaction“
Injection test device
INTEROPERABILITY Tests
IOP11/2002 11
IEC IEC 6185061850IEC IEC
6185061850 Positive tests
GOOSE Sender Device X
GOOSE Sender
Device Y
GOOSE Sender
Device Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice ZE
ther
net
GOOSE message with commands for CB tripping and disturbance recorder startingConfiguration: sender Y --> receiver Z
Faultsimulation
Injection test device
„CB off“
INTEROPERABILITY Tests
IOP11/2002 12
IEC IEC 6185061850IEC IEC
6185061850 Performance tests: Background traffic
GOOSE Sender Device X
GOOSE Sender Device X
GOOSE ReceiverDevice Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice Z
KEMA UniCA-IEC61850 GOOSE Simulator Produced 10, 50,150, 300 GOOSE
messages within 50ms
measured timeFault CB off
100 Mbit/s redundant switched Ethernet ring
Heavy busload
INTEROPERABILITY Tests
IOP11/2002 13
IEC IEC 6185061850IEC IEC
6185061850 Performance tests: Device load
100 Mbit/s redundant switched Ethernet ring
GOOSE Sender Device X
GOOSE Sender Device X
GOOSE ReceiverDevice Y
GOOSE ReceiverDevice Z
GOOSE ReceiverDevice Z
KEMA UniCA-IEC61850 GOOSE Simulator
measured timeFault CB off
Produced 10, 50,150, 300 GOOSE messages within 50ms
Heavy busloadHeavy device load
INTEROPERABILITY Tests
IOP11/2002 14
IEC IEC 6185061850IEC IEC
6185061850 Phase 1: Performance tests
The transmission time was dependent of today`s software implementation.Bus load or device load had no major effect.
0 5 10 15 20 25 30
Transmission time [ms]
Average
Optimised
Softwareimplementation
INTEROPERABILITY Tests
IOP11/2002 15
IEC IEC 6185061850IEC IEC
6185061850 Interoperability test concept
Number of tests
Positive tests 9Correct 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
INTEROPERABILITY Tests
IOP11/2002 16
IEC IEC 6185061850IEC IEC
6185061850 Test results
Experience from the rejected resp. dismissed test cases was used to improve the IEC 61850 specification and implementation.
05
10152025303540
Tota
l tes
ts
acce
pted
reje
cted
(impl
emen
tatio
n)
dism
isse
d(s
tand
ard)
Nu
mb
e r o
f te
st c
ase
s
INTEROPERABILITY Tests
IOP11/2002 17
IEC IEC 6185061850IEC IEC
6185061850 A week of successful work
The teams from A-A-S
INTEROPERABILITY Tests
IOP11/2002 18
IEC IEC 6185061850IEC IEC
6185061850 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 61850
A-A-S is on track - and on the right way