Wind energy generation systems - Part 25-5: Communications for monitoring and control of wind power plants - Compliance testing

IEC 61400-25-5:2017 specifies standard techniques for testing of compliance of implementations, as well as specific measurement techniques to be applied when declaring performance parameters. The use of these techniques will enhance the ability of users to purchase systems that integrate easily, operate correctly, and support the applications as intended. This part of IEC 61400-25 defines: the methods and abstract test cases for compliance testing of server and client devices used in wind power plants; the metrics to be measured in said devices according to the communication requirements specified in IEC 61400-25 (all parts). This new edition includes the following significant technical changes with respect to the previous edition: - harmonization with structure and test cases in IEC 61850-10:2012; - reduction of overlap between standards and simplification by increased referencing to the IEC 61850 standard series.

Windenergieanlagen - Teil 25-5: Kommunikation für die Überwachung und Steuerung von Windenergieanlagen - Konformitätsprüfungen

Systèmes de production d’énergie éolienne - Partie 25-5: Communications pour la surveillance et la commande des centrales éoliennes - Essais de conformité

l'IEC 61400-25-5:2017 spécifie les techniques normalisées destinées à soumettre à l'essai la conformité des mises en œuvre ainsi que des techniques de mesure spécifiques à appliquer lors de l'établissement des paramètres de performance. L'utilisation de ces techniques permet aux utilisateurs d'acheter en toute connaissance de cause des systèmes faciles à intégrer, qui fonctionnent correctement et prennent en charge les applications prévues. La présente partie de l'IEC 61400-25 définit: les méthodes et les cas d'essai abstraits pour les essais de conformité des dispositifs serveur et client utilisés dans les centrales éoliennes; les mesurages à réaliser dans lesdits dispositifs conformément aux exigences relatives à la communication spécifiées dans l'IEC 61400-25 (toutes les parties).Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - harmonisation avec la structure et les cas d'essai de l'IEC 61850-10:2012; - réduction du chevauchement entre les normes et simplification par augmentation des références à la série de normes IEC 61850.

Sistemi za proizvodnjo energije na veter - 25-5. del: Komunikacije za spremljanje in nadzor vetrnih elektrarn - Preskušanje skladnosti (IEC 61400-25-5:2017)

This part of IEC 61400-25 specifies standard techniques for testing of compliance of
implementations, as well as specific measurement techniques to be applied when declaring
performance parameters. The use of these techniques will enhance the ability of users to
purchase systems that integrate easily, operate correctly, and support the applications as
intended.
This part of IEC 61400-25 defines:
• the methods and abstract test cases for compliance testing of server and client devices
used in wind power plants,
• the metrics to be measured in said devices according to the communication requirements
specified in IEC 61400-25 (all parts).
NOTE The role of the test facilities for compliance testing and certifying the results are outside of the scope of
IEC 61400-25-5.

General Information

Status
Published
Publication Date
14-Dec-2017
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available
Due Date
15-Dec-2017
Completion Date
15-Dec-2017

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SLOVENSKI STANDARD
SIST EN 61400-25-5:2018
01-februar-2018
1DGRPHãþD
SIST EN 61400-25-5:2007

Sistemi za proizvodnjo energije na veter - 25-5. del: Komunikacije za spremljanje in

nadzor vetrnih elektrarn - Preskušanje skladnosti (IEC 61400-25-5:2017)

Wind energy generation systems - Part 25-5: Communications for monitoring and control

of wind power plants - Conformance testing (IEC 61400-25-5:2017)
Ta slovenski standard je istoveten z: EN 61400-25-5:2017
ICS:
27.180 Vetrne elektrarne Wind turbine energy systems
SIST EN 61400-25-5:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 61400-25-5:2018
---------------------- Page: 2 ----------------------
SIST EN 61400-25-5:2018
EUROPEAN STANDARD EN 61400-25-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2017
ICS 27.180 Supersedes EN 61400-25-5:2007
English Version
Wind energy generation systems - Part 25-5: Communications
for monitoring and control of wind power plants - Compliance
testing
(IEC 61400-25-5:2017)

Systèmes de production d'énergie éolienne - Partie 25-5: Windenergieanlagen - Teil 25-5: Kommunikation für die

Communications pour la surveillance et la commande des Überwachung und Steuerung von Windenergieanlagen -

centrales éoliennes - Essais de conformité Konformitätsprüfungen
(IEC 61400-25-5:2017) (IEC 61400-25-5:2017)

This European Standard was approved by CENELEC on 2017-10-25. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61400-25-5:2017 E
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SIST EN 61400-25-5:2018
EN 61400-25-5:2017 (E)
European foreword

The text of document 88/643/FDIS, future edition 2 of IEC 61400-25-5, prepared by IEC/TC 88 "Wind

energy generation systems" was submitted to the IEC-CENELEC parallel vote and approved by

CENELEC as EN 61400-25-5:2017.
The following dates are fixed:
• latest date by which the document has to be (dop) 2018-07-25
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-10-25
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61400-25-5:2007.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 61400-25-5:2017 was approved by CENELEC as a

European Standard without any modification.
---------------------- Page: 4 ----------------------
SIST EN 61400-25-5:2018
EN 61400-25-5:2017 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year

IEC 61400-25-1 2006 Wind turbines - Part 25-1: Communications for EN 61400-25-1 2007

monitoring and control of wind power plants -
Overall description of principles and models

IEC 61400-25 series Wind turbines - Part 25: Communications for EN 61400-25 series

monitoring and control of wind power plants

IEC 61400-25-2 2015 Wind turbines - Part 25-2: Communications for EN 61400-25-2 2015

monitoring and control of wind power plants -
Information models

IEC 61400-25-3 2015 Wind turbines - Part 25-3: Communications for EN 61400-25-3 2015

monitoring and control of wind power plants -
Information exchange models

IEC 61400-25-4 2016 Wind energy generation systems - Part 25-4: EN 61400-25-4 2017

Communications for monitoring and control of
wind power plants - Mapping to communication
profile
IEC 61850-4 2011 Communication networks and systems for EN 61850-4 2011
power utility automation - Part 4: System and
project management
IEC 61850-6 2009 Communication networks and systems for EN 61850-6 2010
power utility automation - Part 6: Configuration
description language for communication in
electrical substations related to IEDs
IEC 61850-7-1 2011 Communication networks and systems for EN 61850-7-1 2011
power utility automation - Part 7-1: Basic
communication structure - Principles and
models
IEC 61850-7-2 2010 Communication networks and systems for EN 61850-7-2 2010
power utility automation - Part 7-2: Basic
information and communication structure -
Abstract communication service interface
(ACSI)
IEC 61850-7-3 2010 Communication networks and systems for EN 61850-7-3 2011
power utility automation - Part 7-3: Basic
communication structure - Common data
classes
IEC 61850-7-4 2010 Communication networks and systems for EN 61850-7-4 2010
power utility automation - Part 7-4: Basic
communication structure - Compatible logical
node classes and data object classes
---------------------- Page: 5 ----------------------
SIST EN 61400-25-5:2018
EN 61400-25-5:2017 (E)
IEC 61850-10 2012 Communication networks and systems for EN 61850-10 2013
power utility automation - Part 10: Conformance
testing

ISO/IEC 9646 series Information technology - Open Systems EN ISO/IEC 9646 series

Interconnection - Conformance testing
methodology and framework
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SIST EN 61400-25-5:2018
IEC 61400-25-5
Edition 2.0 2017-09
INTERNATIONAL
STANDARD
colour
inside
Wind energy generation systems –
Part 25-5: Communications for monitoring and control of wind power plants –
Compliance testing
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.180 ISBN 978-2-8322-4733-4

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN 61400-25-5:2018
– 2 – IEC 61400-25-5:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 9

4 Abbreviated terms ......................................................................................................... 12

5 Introduction to compliance testing ................................................................................. 12

5.1 General ................................................................................................................. 12

5.2 Compliance test procedures .................................................................................. 13

5.3 Quality assurance and testing ............................................................................... 14

5.3.1 General ......................................................................................................... 14

5.3.2 Quality plan ................................................................................................... 14

5.4 Testing ................................................................................................................. 15

5.4.1 General ......................................................................................................... 15

5.4.2 Device testing ................................................................................................ 16

5.5 Documentation of compliance test report .............................................................. 17

6 Device related compliance testing ................................................................................. 17

6.1 Test methodology ................................................................................................. 17

6.2 Compliance test procedures .................................................................................. 18

6.2.1 General ......................................................................................................... 18

6.2.2 Test procedure requirements ......................................................................... 18

6.2.3 Test structure ................................................................................................ 19

6.2.4 Test cases to test a server device.................................................................. 19

6.2.5 Test cases to test a client device ................................................................... 38

6.2.6 Acceptance criteria ........................................................................................ 52

7 Performance tests ......................................................................................................... 52

7.1 General ................................................................................................................. 52

7.2 Communication latency – Transfer time test introduction ....................................... 53

7.3 Time synchronisation and accuracy ...................................................................... 54

7.3.1 Time Sync test introduction............................................................................ 54

7.3.2 Time Sync test methodology .......................................................................... 55

7.3.3 Testing criteria ............................................................................................... 55

Annex A (informative) Examples of test procedure template ................................................. 56

A.1 Example 1 ............................................................................................................. 56

A.2 Example 2 ............................................................................................................. 56

Figure 1 – Conceptual communication model of the IEC 61400-25 standard series ................ 8

Figure 2 – Conceptual compliance assessment process........................................................ 16

Figure 3 – Test procedure format .......................................................................................... 19

Figure 4 – Test system architecture to test a server device ................................................... 20

Figure 5 – Test system architecture to test a client device .................................................... 39

Figure 6 – Performance testing (black box principle) ............................................................. 54

Figure 7 – Time synchronisation and accuracy test setup ..................................................... 55

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SIST EN 61400-25-5:2018
IEC 61400-25-5:2017 © IEC 2017 – 3 –

Table 1 – Server documentation test cases ........................................................................... 20

Table 2 – Server data model test cases ................................................................................ 21

Table 3 – Association positive test cases .............................................................................. 22

Table 4 – Association negative test cases ............................................................................. 22

Table 5 – Server positive test cases ..................................................................................... 23

Table 6 – Server negative test cases .................................................................................... 24

Table 7 – Data set positive test cases ................................................................................... 25

Table 8 – Date set negative test cases ................................................................................. 26

Table 9 – Substitution positive test cases ............................................................................. 26

Table 10 – Unbuffered reporting positive test cases .............................................................. 27

Table 11 – Unbuffered reporting negative test cases ............................................................ 28

Table 12 – Buffered reporting positive test cases .................................................................. 29

Table 13 – Buffered reporting negative test cases................................................................. 31

Table 14 – Log positive test cases ........................................................................................ 32

Table 15 – Log negative test cases ....................................................................................... 32

Table 16 – Control model test cases ..................................................................................... 33

Table 17 – DOns test cases .................................................................................................. 35

Table 18 – SBOns test cases ................................................................................................ 35

Table 19 – DOes test cases .................................................................................................. 36

Table 20 – SBOes test cases ................................................................................................ 37

Table 21 – Time positive test cases ...................................................................................... 38

Table 22 – Time negative test cases ..................................................................................... 38

Table 23 – Client documentation test case .......................................................................... 39

Table 24 – Client data model test case ................................................................................ 40

Table 25 – Association positive test cases ............................................................................ 40

Table 26 – Association negative test cases ........................................................................... 41

Table 27 – Server positive test cases.................................................................................... 41

Table 28 – Server negative test cases .................................................................................. 42

Table 29 – Data set positive test cases ................................................................................. 43

Table 30 – Data set negative test cases................................................................................ 43

Table 31 – Substitution test cases ........................................................................................ 44

Table 32 – Unbuffered reporting positive test cases .............................................................. 44

Table 33 – Unbuffered reporting negative test cases ............................................................ 45

Table 34 – Buffered reporting positive test cases .................................................................. 46

Table 35 – Buffered reporting negative test cases................................................................. 47

Table 36 – Log positive test cases ........................................................................................ 48

Table 37 – Log negative test cases ....................................................................................... 48

Table 38 – Control model positive test cases ........................................................................ 49

Table 39 – Control model negative test cases ....................................................................... 49

Table 40 – SBOes test cases ................................................................................................ 50

Table 41 – SBOns test cases ................................................................................................ 50

Table 42 – DOes test cases .................................................................................................. 51

Table 43 – DOns test cases .................................................................................................. 51

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SIST EN 61400-25-5:2018
– 4 – IEC 61400-25-5:2017 © IEC 2017

Table 44 – Time positive test cases ...................................................................................... 52

Table 45 – Time negative test cases ..................................................................................... 52

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SIST EN 61400-25-5:2018
IEC 61400-25-5:2017 © IEC 2017 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WIND ENERGY GENERATION SYSTEMS –
Part 25-5: Communications for monitoring
and control of wind power plants –
Compliance testing
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61400-25-5 has been prepared by IEC technical committee 88:

Wind energy generation systems.

This second edition cancels and replaces the first edition published in 2006. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
• Harmonization with structure and test cases in IEC 61850-10:2012.

• The use of SCL in the compliance testing process is out of the scope for this edition, but

will be considered for Edition 3.

• Reduction of overlap between standards and simplification by increased referencing to the

IEC 61850 standard series.
---------------------- Page: 11 ----------------------
SIST EN 61400-25-5:2018
– 6 – IEC 61400-25-5:2017 © IEC 2017

• All test cases applying SCL files are still not a part of the present document as the SCL

specifications for wind power domain are still pending to be published.
The text of this International Standard is based on the following documents:
FDIS Report on voting
88/643/FDIS 88/650/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

Future standards in this series will carry the new general title as cited above. Titles of existing

standards in this series will be updated at the time of the next edition.

A list of all parts of the IEC 61400 series, under the general title Wind energy generation

systems, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 12 ----------------------
SIST EN 61400-25-5:2018
IEC 61400-25-5:2017 © IEC 2017 – 7 –
INTRODUCTION

The focus of IEC 61400-25 (all parts) is on the communications between wind power plant

components such as wind turbines and actors such as SCADA Systems. Internal

communication within wind power plant components is outside the scope of IEC 61400-25 (all

parts).

IEC 61400-25 (all parts) is designed for a communication environment supported by a client-

server model. Three areas are defined, that are modelled separately to ensure the scalability

of implementations:
a) wind power plant information models,
b) information exchange model, and
c) mapping of these two models to a standard communication profile.

The wind power plant information model and the information exchange model, viewed

together, constitute an interface between client and server. In this conjunction, the wind

power plant information model serves as an interpretation frame for accessible wind power

plant data. The wind power plant information model is used by the server to offer the client a

uniform, component-oriented view of the wind power plant data. The information exchange

model reflects the whole active functionality of the server. IEC 61400-25 (all parts) enables

connectivity between a heterogeneous combination of client and servers from different

manufacturers and suppliers.

As depicted in Figure 1, IEC 61400-25 (all parts) defines a server with the following aspects:

– information provided by a wind power plant component, e. g., “wind turbine rotor speed” or

“total power production of a certain time interval” is modelled and made available for

access. The information modelled in the document is defined in IEC 61400-25-2,

– services to exchange values of the modelled information defined in IEC 61400-25-3,

– mapping to a communication profile, providing a protocol stack to carry the exchanged

values from the modelled information (IEC 61400-25-4).

IEC 61400-25 (all parts) only defines how to model the information, information exchange and

mapping to specific communication protocols. IEC 61400-25 (all parts) excludes a definition

of how and where to implement the communication interface, the application program

interface and implementation recommendations. However, the objective of IEC 61400-25 (all

parts) is that the information associated with a single wind power plant component (such as

the wind turbine) is accessible through a corresponding logical device.
The intended readers for the present document are device or system and/or system
component manufacturers and test system developers/providers.

NOTE Abbreviations used in IEC 61400-25-5 are listed in Clauses 3 and 4 or can be found in other parts of

IEC 61400-25 standard series that are relevant for compliance testing.
---------------------- Page: 13 ----------------------
SIST EN 61400-25-5:2018
– 8 – IEC 61400-25-5:2017 © IEC 2017
WIND ENERGY GENERATION SYSTEMS –
Part 25-5: Communications for monitoring
and control of wind power plants –
Compliance testing
1 Scope

This part of IEC 61400-25 specifies standard techniques for testing of compliance of

implementations, as well as specific measurement techniques to be applied when declaring

performance parameters. The use of these techniques will enhance the ability of users to

purchase systems that integrate easily, operate correctly, and support the applications as

intended.
This part of IEC 61400-25 defines:

• the methods and abstract test cases for compliance testing of server and client devices

used in wind power plants,

• the metrics to be measured in said devices according to the communication requirements

specified in IEC 61400-25 (all parts).

NOTE The role of the test facilities for compliance testing and certifying the results are outside of the scope of

IEC 61400-25-5.
Communication model of the IEC 61400-25 series
Client Server
Messaging
Information exchange Information exchange
through mapping
model (get, set, report, model (get, set, report,
to communication
log, control, publish / log, control, publish /
profile (Read,
subscribe, etc.) subscribe, etc.)
write, ... message)
defined in defined in
defined in
Wind power
Actor IEC 61400-25-3 IEC 61400-25-3
IEC 61400-25-4
plant
e.g.
SCADA component
e.g. wind turbine
Wind power plant Wind power plant
information model information model
(rotor speed, break
defined in
status, total power
Application IEC 61400-25-2 Application
production, etc.)
defined in
IEC 61400-25-2
Outside
Outside
scope
scope
IEC
Figure 1 – Conceptual communication model of the
IEC 61400-25 standard series
2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.
----------------------
...

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