IEC 61850 between ABB siemens GE

1. INTEROPERABILITY
Tests
IOP11/2002 1
IEC
61850 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

2. INTEROPERABILITY
Tests
IOP11/2002 2
IEC
61850 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.

3. INTEROPERABILITY
Tests
IOP11/2002 3
IEC
61850 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

4. INTEROPERABILITY
Tests
IOP11/2002 4
IEC
61850 Schedule of activities
The way to interoperable substation automation
2002 2003 2004
2001
2000
2002 2003 2004
2001
2000
Further interoperability tests
Test
P2a
First interoperability
tests of bay devices
Committee
draft
Final draft
International
Standard
International
Standard
Committee draft
for vote
IEC
61850
IEC
A-A-S
Test
P2b

5. INTEROPERABILITY
Tests
IOP11/2002 5
IEC
61850 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

6. INTEROPERABILITY
Tests
IOP11/2002 6
IEC
61850 IEC 61850 GOOSE Principle
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
Ethernet
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
message

7. INTEROPERABILITY
Tests
IOP11/2002 7
IEC
61850 Test configuration of phase 1
100 Mbit/s redundant switched Ethernet ring
KEMA UniCA-
IEC61850 GOOSE Simulator
Network
Analyser
KEMA UniCA-
IEC61850 Analyser
GOOSE messages
GOOSE: Generic Object Oriented Substation Event

8. INTEROPERABILITY
Tests
IOP11/2002 8
IEC
61850 Substation Configuration Language (SCL)
SCL is the basis for the
success 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

9. INTEROPERABILITY
Tests
IOP11/2002 9
IEC
61850 Tripping via GOOSE
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
Ethernet
Fault
Simulation
GOOSE message with commands for CB * tripping and
disturbance recorder starting
Configuration: sender X --> receiver Z
„Y does
not react“
„Z starts its
disturbance
recording“
„CB* off“
Injection test device
* CB = Circuit Breaker

10. INTEROPERABILITY
Tests
IOP11/2002 10
IEC
61850 Negative tests
GOOSE
Sender
Device X
GOOSE
Sender
Device Y
GOOSE
Receiver
Device Z
Ethernet
Fault
simulation
GOOSE message with commands for CB tripping and
disturbance recorder starting
Configuration: sender Y --> receiver Z not configured
„no reaction“
Injection test device

11. INTEROPERABILITY
Tests
IOP11/2002 11
IEC
61850 Positive tests
GOOSE
Sender
Device X
GOOSE
Sender
Device Y
GOOSE
Receiver
Device Z
Ethernet
GOOSE message with commands for CB tripping and
disturbance recorder starting
Configuration: sender Y --> receiver Z
Fault
simulation
Injection test device
„CB off“

12. INTEROPERABILITY
Tests
IOP11/2002 12
IEC
61850 Performance tests: Background traffic
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
KEMA UniCA-
IEC61850 GOOSE Simulator Produced 10, 50,150, 300 GOOSE
messages within 50ms
measured time
Fault CB off
100 Mbit/s redundant switched Ethernet ring
Heavy busload

13. INTEROPERABILITY
Tests
IOP11/2002 13
IEC
61850 Performance tests: Device load
100 Mbit/s redundant switched Ethernet ring
GOOSE
Sender
Device X
GOOSE
Receiver
Device Y
GOOSE
Receiver
Device Z
KEMA UniCA-
IEC61850 GOOSE Simulator
measured time
Fault CB off
Produced 10, 50,150, 300 GOOSE
messages within 50ms
Heavy busload
Heavy device load

14. INTEROPERABILITY
Tests
IOP11/2002 14
IEC
61850 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
Software
implementation

15. INTEROPERABILITY
Tests
IOP11/2002 15
IEC
61850 Interoperability test concept
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

16. INTEROPERABILITY
Tests
IOP11/2002 16
IEC
61850 Test results
Experience from the rejected resp. dismissed test
cases was used to improve the IEC 61850
specification and implementation.
0
5
10
15
20
25
30
35
40
Total
tests
accepted
rejected
(implementation)
dis
missed
(standard)

17. INTEROPERABILITY
Tests
IOP11/2002 17
IEC
61850 A week of successful work
The teams from A-A-S

18. INTEROPERABILITY
Tests
IOP11/2002 18
IEC
61850 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