IEC 61400-25-5:2006

Wind turbines - Part 25-5: Communications for monitoring and control of wind power plants - Conformance testing

Specifies standard techniques for testing of conformance 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 publication is of high relevance for Smart Grid.

General Information

• Status: Published
• Publication Date: 13-Dec-2006
• ICS: 27.180 - Wind turbine energy systems
• Technical Committee: TC 88 - Wind energy generation systems
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 20-Sep-2017

Relations

• Revised: IEC 61400-25-5:2017 - Wind energy generation systems - Part 25-5: Communications for monitoring and control of wind power plants - Compliance testing
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 61400-25-5
First edition
2006-12
Wind turbines –
Part 25-5:
Communications for monitoring
and control of wind power plants –
Conformance testing
Reference number
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INTERNATIONAL IEC
STANDARD 61400-25-5
First edition
2006-12
Wind turbines –
Part 25-5:
Communications for monitoring
and control of wind power plants –
Conformance testing
© IEC 2006 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale X
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 61400-25-5 © IEC:2006(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .7
3 Terms and definitions .7
4 Abbreviated terms .10
5 Introduction to conformance testing.11
5.1 General .11
5.2 Conformance test procedures.11
5.3 Quality assurance and testing .12
5.4 Testing .13
5.5 Documentation of conformance test report .15
6 Device related conformance testing.15
6.1 General guidelines .15
6.2 Standard test procedures .17
6.3 Conformance test procedures.17
7 Performance tests .39
7.1 General .39
7.2 Communications latency.40
7.3 Time synchronisation and accuracy.41
7.4 Stability test .43

Annex A (informative) Examples of test procedure template.44

Bibliography.45

Figure 1 – Conceptual communication model of the IEC 61400-25 series .7
Figure 2 – Conceptual conformance assessment process .14
Figure 3 – Conceptual test system architecture.16
Figure 4 – Test procedure format.18
Figure 5 – Performance testing (black box principle).41
Figure 6 – Time synchronisation and accuracy test setup .42

61400-25-5 © IEC:2006(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WIND TURBINES –
Part 25-5: Communications for monitoring
and control of wind power plants –
Conformance 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
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
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6) All users should ensure that they have the latest edition of this publication.
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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 turbines.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The text of this standard is based on the following documents:
FDIS Report on voting
88/277/FDIS 88/283/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
A list of all parts of the IEC 61400 series, under the general title Wind turbines can be found
on the IEC website.
– 4 – 61400-25-5 © IEC:2006(E)
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

61400-25-5 © IEC:2006(E) – 5 –
INTRODUCTION
The IEC 61400-25 series defines communication for monitoring and control of wind power
plants. The modeling approach of the IEC 61400-25 series has been selected to provide
abstract definitions of classes and services such that the specifications are independent of
specific protocol stacks, implementations, and operating systems. The mapping of these
abstract classes and services to a specific communication profile may be found in IEC 61400-
25-4 .
This part of IEC 61400-25 defines the methods and abstract test cases for conformance
testing of devices used in wind power plants. The intended readers are test system
developers.
NOTE 1 It is recommended to obtain a common knowledge of the standards IEC 61400-25-1, IEC 61400-25-2,
IEC 61400-25-3, and IEC 61400-25-4 before reading this part.
NOTE 2 Abbreviations used in IEC 61400-25-5 may be listed in Clause 3 or may be found in other parts of
IEC 61400-25 that are relevant for conformance testing.

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To be published.
– 6 – 61400-25-5 © IEC:2006(E)
WIND TURBINES –
Part 25-5: Communications for monitoring
and control of wind power plants –
Conformance testing
1 Scope
The focus of the IEC 61400-25 series 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 the IEC 61400-25
series.
The IEC 61400-25 series 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:
1) wind power plant information models,
2) information exchange model, and
3) 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. The IEC 61400-25 series enables
connectivity between a heterogeneous combination of client and servers from different
manufacturers and suppliers.
As depicted in Figure 1, the IEC 61400-25 series 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 standard is defined in part IEC 61400-25-2,
– services to exchange values of the modelled information defined in part IEC 61400-25-3,
– mapping to a communication profile, providing a protocol stack to carry the exchanged
values from the modelled information (part IEC 61400-25-4).
The IEC 61400-25 series only defines how to model the information, information exchange
and mapping to specific communication protocols. The IEC 61400-25 series excludes a
definition of how and where to implement the communication interface, the application
program interface and implementation recommendations. However, the objective of the IEC
61400-25 series is that the information associated with a single wind power plant component
(such as the wind turbine) is accessible through a corresponding logical device.
This part of IEC 61400-25 specifies standard techniques for testing of conformance of
implementati
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