SIST EN 61400-25-2:2007
Wind turbines -- Part 25-2: Communications for monitoring and control of wind power plants - Information models
Wind turbines -- Part 25-2: Communications for monitoring and control of wind power plants - Information models
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 clientserver 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, for example "wind turbine rotor speed" or "total power production of a certain time interval", is modelled and made available for access. - 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). The IEC 61400-25 series only defines how to model the information, information exchange and mapping to specific communication protocols. The standard excludes a definition of how and where to implement the communication interface, the application program interface and implementation recommendations. However, the objective of the standard is that the information associated with a single wind power plant component (such as a wind turbine) is accessible through a corresponding logical device. IEC 61400-25-2 specifies the information model of devices and functions related to wind power plant applications. In particular, it specifies the compatible logical node names, and data names for communication between wind power plant components. This includes the relationship between logical devices, logical nodes and data. The names defined in the IEC 61400-25 series are used to build the hierarchical object references applied for communicating with components in wind power plants.
Windenergieanlagen - Teil 25-2: Kommunikation für die Überwachung und Steuerung von Windenergieanlagen - Informationsmodelle
Eoliennes - Partie 25-2 : Communications pour la surveillance et la commande des centrales éoliennes - Modèles d'information
Sistemi generatorjev vetrne turbine - 25-2. del: Komunikacije za spremljanje in nadzor vetrnih elektrarn - Informacijski modeli (IEC 61400-25-2:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61400-25-2:2007
01-november-2007
Sistemi generatorjev vetrne turbine - 25-2. del: Komunikacije za spremljanje in
nadzor vetrnih elektrarn - Informacijski modeli (IEC 61400-25-2:2006)
Wind turbines - Part 25-2: Communications for monitoring and control of wind power
plants - Information models
Windenergieanlagen - Teil 25-2: Kommunikation für die Überwachung und Steuerung
von Windenergieanlagen - Informationsmodelle
Eoliennes - Partie 25-2: Communications pour la surveillance et la commande des
centrales éoliennes - Modeles d'information
Ta slovenski standard je istoveten z: EN 61400-25-2:2007
ICS:
27.180 Sistemi turbin na veter in Wind turbine systems and
drugi alternativni viri energije other alternative sources of
energy
SIST EN 61400-25-2:2007 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 61400-25-2
NORME EUROPÉENNE
February 2007
EUROPÄISCHE NORM
ICS 27.180
English version
Wind turbines -
Part 25-2: Communications for monitoring
and control of wind power plants -
Information models
(IEC 61400-25-2:2006)
Eoliennes - Windenergieanlagen -
Partie 25-2: Communications Teil 25-2: Kommunikation
pour la surveillance et la commande für die Überwachung und Steuerung
des centrales éoliennes - von Windenergieanlagen -
Modèles d'information
Informationsmodelle
(CEI 61400-25-2:2006) (IEC 61400-25-2:2006)
This European Standard was approved by CENELEC on 2007-02-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61400-25-2:2007 E
---------------------- Page: 2 ----------------------
EN 61400-25-2:2007 - 2 -
Foreword
The text of document 88/275/FDIS, future edition 1 of IEC 61400-25-2, prepared by IEC TC 88, Wind
turbines, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61400-25-2 on 2007-02-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-02-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61400-25-2:2006 was approved by CENELEC as a European
Standard without any modification.
__________
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- 3 - EN 61400-25-2:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 61400-25 Series Wind turbines - EN 61400-25 Series
Part 25: Communications for monitoring and
control of wind power plants
1) 2)
IEC 61850-5 - Communication networks and systems in EN 61850-5 2003
substations -
Part 5: Communication requirements for
functions and device models
IEC 61850-7-1 2003 Communication networks and systems in EN 61850-7-1 2003
substations -
Part 7-1: Basic communication structure for
substation and feeder equipment - Principles
and models
IEC 61850-7-2 2003 Communication networks and systems in EN 61850-7-2 2003
substations -
Part 7-2: Basic communication structure for
substation and feeder equipment - Abstract
communication service interface (ACSI)
1) 2)
IEC 61850-7-3 - Communication networks and systems in EN 61850-7-3 2003
substations -
Part 7-3: Basic communication structure for
substation and feeder equipment - Common
data classes
1) 2)
IEC 61850-7-4 - Communication networks and systems in EN 61850-7-4 2003
substations -
Part 7-4: Basic communication structure for
substation and feeder equipment -
Compatible logical node classes and data
classes
ISO 639 Series Codes for the representation of names of - -
languages
1)
ISO 1000 - SI units and recommendations for the use of - -
their multiples and of certain other units
ISO 3166 Series Codes for the representation of names of EN ISO 3166 Series
countries and their subdivisions
1)
Undated reference.
2)
Valid edition at date of issue.
---------------------- Page: 4 ----------------------
EN 61400-25-2:2007 - 4 -
Publication Year Title EN/HD Year
1)
RFC 2445 - Internet Calendaring and Scheduling Core - -
Object Specification (iCalendar)
---------------------- Page: 5 ----------------------
INTERNATIONAL IEC
STANDARD 61400-25-2
First edition
2006-12
Wind turbines –
Part 25-2:
Communications for monitoring
and control of wind power plants –
Information models
© 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: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XC
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
---------------------- Page: 6 ----------------------
– 2 – 61400-25-2 © IEC:2006(E)
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .9
3 Terms and definitions .10
4 Abbreviated terms .10
5 General .13
5.1 Overview of logical node classes.13
5.2 Use of logical node classes .15
5.3 Extensions of the information model.15
6 Wind power plant logical node classes .16
6.1 System specific logical nodes.16
6.2 Wind power plant specific logical nodes .18
6.3 Data name semantic.34
7 Common data classes .45
7.1 Basic concepts for common data classes (CDC).45
7.2 Common data class attributes .48
7.3 Wind power plant specific common data classes (CDC).53
7.4 Common data classes inherited from IEC 61850-7-3 .61
7.5 Common data class attribute semantics .63
Annex A (normative) Information model for statistical data and historical statistical
data .68
Annex B (normative) Value range for units and multiplier .73
Annex C (informative) Wind Power Plant Controller .76
Annex D (informative) List of mandatory logical nodes and data .82
Figure 1 – Conceptual communication model of the IEC 61400-25 series .9
Figure 2 – Relationship of logical nodes.13
Figure 3 – Use of instances of logical nodes .15
Figure A.1 – Conceptual model of statistical and historical statistical data (1) .69
Figure A.2 – Conceptual model of statistical and historical statistical data (2) .70
Figure C.1 – Conceptual structure of the wind power plant control functions .76
Figure C.2 – Schematic illustration of the active power limitation control function .77
Figure C.3 – Schematic illustration of the gradient power control function.78
Figure C.4 – Schematic illustration of the delta power control function .78
Figure C.5 – Schematic illustration of a combined control – including gradient, delta
and active power limitation control .79
Figure C.6 – Schematic illustration of the apparent power control function.79
Figure C.7 – Schematic illustration of the reactive power control function .80
Figure C.8 – Schematic illustration of the power factor control function.81
Figure C.9 – Schematic illustration of the voltage control function using reactive power
control .81
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61400-25-2 © IEC:2006(E) – 3 –
Table 1 – System specific logical nodes.13
Table 2 – Wind power plant specific logical nodes .14
Table 3 – Wind turbine specific logical nodes.14
Table 4 – Wind power plant common logical node class.16
Table 5 – Logical node zero class.17
Table 6 – Physical device information class .17
Table 7 – LN: Wind turbine general information (WTUR).18
Table 8 – LN: Wind turbine rotor information (WROT) .19
Table 9 – LN: Wind turbine transmission information (WTRM).20
Table 10 – LN: Wind turbine generator information (WGEN) .21
Table 11 – LN: Wind turbine converter information (WCNV) .22
Table 12 – LN: Wind turbine transformer information (WTRF) .23
Table 13 – LN: Wind turbine nacelle information (WNAC) .24
Table 14 – LN: Wind turbine yawing information (WYAW) .25
Table 15 – LN: Wind turbine tower information (WTOW) .25
Table 16 – LN: Wind power plant meteorological information (WMET) .26
Table 17 – LN: Wind power plant alarm information (WALM).27
Table 18 – LN: Wind turbine state log information (WSLG) .27
Table 19 – LN: Wind turbine analogue log information (WALG).29
Table 20 – LN: Wind turbine report information (WREP) .32
Table 21 – LN: Wind power plant active power control information (WAPC) .33
Table 22 – LN: Wind power plant reactive power control information (WRPC) .34
Table 23 – Data name semantic.35
Table 24 – General table structure of a common data class (CDC) .46
Table 25 – Common data class attributes .47
Table 26 – Conditions for the presence of an attribute .47
Table 27 – CDC: Attribute basic types .48
Table 28 – Analogue value .48
Table 29 – TimeStamp type .49
Table 30 – TimeQuality definition.50
Table 31 – TimeAccuracy .50
Table 32 – Quality .51
Table 33 – Unit .51
Table 36 – Wind power plant specific common data classes .53
Table 37 – CDC: Setpoint value (SPV).54
Table 38 – CDC: Status Value (STV) .55
Table 39 – CDC: Alarm (ALM).56
Table 40 – CDC: Command (CMD) .57
Table 41 – CDC: Event counting (CTE).58
Table 42 – CDC: State timing (TMS) .60
Table 43 – CDC: Alarm Set Status (ASS).61
Table 44 – Specialized common data classes .62
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– 4 – 61400-25-2 © IEC:2006(E)
Table 45 – Device name plate common data class specification WDPL.62
Table 46 – Common data class attribute semantic .63
Table A.1 – Description of Data .71
Table A.2 – Object reference setting group common data class specification .72
Table B.1 – SI units: base units .73
Table B.2 – SI units: derived units .73
Table B.3 – SI units: extended units.74
Table B.4 – SI units: industry specific units.74
Table B.5 – Multiplier .75
Table D.1 – Mandatory system specific logical nodes .82
Table D.2 – Mandatory wind power plant specific logical nodes .82
Table D.3 – Mandatory wind turbine specific logical nodes.82
Table D.4 – Mandatory wind power plant specific common data classes (CDC) .82
Table D.5 – Mandatory common data classes inherited from IEC 61850-7-3 .83
Table D.6 – Mandatory common data classes inherited from IEC 61850-7-3 and
specialised.83
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61400-25-2 © IEC:2006(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WIND TURBINES –
Part 25-2: Communications for monitoring
and control of wind power plants –
Information models
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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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
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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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
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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 61400-25-2 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
88/275/FDIS 88/281/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.
---------------------- Page: 10 ----------------------
– 6 – 61400-25-2 © 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.
---------------------- Page: 11 ----------------------
61400-25-2 © IEC:2006(E) – 7 –
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 is not within the scope of
1
this part of the IEC 61400-25 series but within the scope of future IEC 61400-25-4 .
To reach interoperability, all data in the information model need a strong definition with regard
to syntax and semantics. The semantics of the data is mainly provided by names assigned to
logical nodes and data they contain, as defined in this part of the IEC 61400-25 series.
Interoperability is easiest if as much as possible of the data are defined as mandatory.
It should be noted that data with full semantics is only one of the elements required to achieve
interoperability. Since data and services are hosted by devices (IED), a proper device model
is needed along with compatible domain specific services (see IEC 61400-25-3).
This part is used to specify the abstract definitions of a logical device class, logical node
classes, data classes, and abstract common data classes. These abstract definitions are
mapped into concrete object definitions that are to be used for a particular protocol.
The compatible logical node name and data name definitions found in this part and the
associated semantics are fixed.
NOTE Performance of the IEC 61400-25 series implementations are application specific. The IEC 61400-25 series
does not guarantee a certain level of performance. This is beyond the scope of the IEC 61400-25 series. However,
there is no underlying limitation in the communications technology to prevent high speed application (millisecond
level responses).
—————————
1
To be published.
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– 8 – 61400-25-2 © IEC:2006(E)
WIND TURBINES –
Part 25-2: Communications for monitoring
and control of wind power plants –
Information models
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, for example “wind turbine rotor
speed” or “total power production of a certain time interval”, is modelled and made
available for access.
– 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).
The IEC 61400-25 series only defines how to model the information, information exchange
and mapping to specific communication protocols. The standard excludes a definition of how
and where to implement the communication interface, the application program interface and
implementation recommendations. However, the objective of the standard is that the
information associated with a single wind power plant component (such as a wind turbine) is
accessible through a corresponding logical device.
IEC 61400-25-2 specifies the information model of devices and functions related to wind
power plant applications. In particular, it specifies the compatible logical node names, and
data names for communication between wind power plant components. This includes the
relationship between logical devices, logical nodes and data. The names defined in the IEC
61400-25 series are used to build the hierarchical object references applied for
communicating with components in wind power plants.
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61400-25-2 © IEC:2006(E) – 9 –
This part of IEC 61400-25 specifies common attribute types and common data classes related
to wind turbine applications. In particular it specifies common data classes for:
• setpoint value,
• status value,
• alarm,
• command,
• event counting,
• state timing,
• alarm set status.
Communication model of the IEC 61400-25 series
Client Server
Messaging
Messaging
Information exchange Information exchange
Information exchange through mapping Information exchange
through mapping
model (get, set, report, model (get, set, report,
model (get, set, report, to communication model (get, set, report,
to communication
log, control, publish / log, control, publish /
log, control, publish / profile (Read, log, control, publish /
profile (Read,
subscribe, etc.) subscribe, etc.)
subscribe, etc.) write, . message) subscribe, etc.)
write, . message)
defined in defined in
defined in defined in defined in
defined in
Wind power
Actor IEC 61400-25-3 IEC 61400-25-3
IEC 61400-25-3 IEC 61400-25-4 IEC 61400-25-3
plant
e.g. IEC 61400-25-4
SCADA component
e.g. wind turbine
Wind power plant Wind power plant
Wind power plant Wind power plant
information model information model
information model information model
(rotor speed, break
defined in (rotor speed, break
defined in
status, total power
status, total power
IEC 61400-25-2
Ap
...
SLOVENSKI oSIST prEN 61400-25-2:2005
PREDSTANDARD
november 2005
Sistemi generatorjev vetrne turbine – 25-2. del: Komunikacije za spremljanje
in nadzor vetrnih elektrarn – Informacijski modeli
Wind turbines – Part 25-2: Communications for monitoring and control of wind
power plants – Information models
ICS 27.180; 35.240.50 Referenčna številka
oSIST prEN 61400-25-2:2005(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
---------------------- Page: 1 ----------------------
88/239/CDV
COMMITTEE DRAFT (CD)
Project number
IEC/TC or SC:
IEC 61400-25-2 Ed.1
TC 88
Date of circulation Closing date for comments
Title of TC/SC:
2005-08-05 2006-01-06
Wind turbines
Also of interest to the following committees Supersedes document
TC 57 88/214/CD & 88/234/CC
Functions concerned:
Safety EMC Environment Quality assurance
Secretary:
THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT
SHOULD NOT BE USED FOR REFERENCE PURPOSES.
A.C. van der Giessen
RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR
COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
Title: Wind turbines - Part 25-2: Communications for monitoring and control of wind power plants –
Information models
Introductory note
This CDV contains a solution for communications for monitoring and control of wind power plants. IEC 61400-25 defines
wind power plant specific information, the mechanisms for information exchange and the mapping to communication
protocols. IEC 61400-25 consists of the following parts, under the general title Communications for monitoring and control
of wind power plants:
Part 25-1 Overall description of principles and models
Part 25-2: Information models
Part 25-3: Information exchange models
Part 25-4: Mapping to communication profile
Part 25-5: Conformance testing
The documents have been drawn up by IEC TC88 Project Team 25, consisting of experts from many of the large vendors
as well as representatives of utilities, consultants and suppliers of third-party products.
All parts are distributed for comments and voting simultaneously, as committee drafts for voting (CDV).
The following major changes have been made as a result of the comments and proposals received on the CD (88/214/CD):
- Logical node WALM, used for representing all possible wind turbine alarms has been replaced by WEVT – wind
power plant event information. WEVT can be used to represent active alarms or events for a wind turbine or any other
WPP components.
- Information related to transformer has been collected in a new logical node WTRF. For information related to grid
connection, e.g breakers logical nodes in IEC 61850 can be reused.
- Mandatory and optional data of logical nodes have been modified, added or deleted.
- The names and semantics of several Data and CDC’s have been coordinated with related names used in IEC 61850.
- An informative annex that shall contain a complete list of all mandatory data and data attributes of the information
has been added. The content will be added after the CDV.
The P-members of TC88 are encouraged to pay special attention to the revised information model for alarms and events.
Two specific questions are:
1) To what extent shall the standard specify a model for how to represent the total list of possible alarms?
2) Shall the CDC ALM be made more general so that it can be used not only for alarms, or shall a new CDC be created
to represent events?
ATTENTION ATTENTION
CDV soumis en parallèle au vote (CEI) Parallel IEC CDV/CENELEC Enquiry
et à l’enquête (CENELEC)
Copyright © 2005 International Electrotechnical Commission, IEC. All rights reserved. It is
permitted to download this electronic file, to make a copy and to print out the content for the sole
purpose of preparing National Committee positions. You may not copy or "mirror" the file or
printed version of the document, or any part of it, for any other purpose without permission in
writing from IEC.
FORM CD (IEC)
International Electrotechnical Commission, IEC
©
2002-08-08
Commission Électrotechnique Internationale, CEI
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61400-25-2 Ed.1/CDV © IEC:2005
1
2 WIND TURBINES
3 Part 25-2:
4 Communications for monitoring and control of wind power plants –
5 Information models
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22 Version: 61400-25-2_R0-5 Draft1CDV_2005-07-11
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61400-25-2 Ed.1/CDV © IEC:2005
1
2 CONTENTS
3 FOREWORD.7
4 INTRODUCTION.8
5 1 Scope .9
6 2 Normative references .11
7 3 Terms and definitions .12
8 4 Abbreviated terms .13
9 5 General.16
10 5.1 Overview on logical node classes.16
11 5.2 Use of logical node classes.18
12 5.3 Extensions of the information model.18
13 6 Wind power plant logical node classes .19
14 6.1 System specific logical nodes .19
15 6.1.1 Wind power plant common logical node class .19
16 6.1.2 Logical node zero (LLN0) .19
17 6.1.3 Physical device information (LPHD).20
18 6.2 Wind power plant specific logical nodes .21
19 6.2.1 Wind turbine general information (WTUR).21
20 6.2.2 Wind turbine rotor information (WROT).22
21 6.2.3 Wind turbine transmission information (WTRM).23
22 6.2.4 Wind turbine generator information (WGEN) .24
23 6.2.5 Wind turbine converter information (WCNV).25
24 6.2.6 Wind turbine transformer information (WTRF) .26
25 6.2.7 Wind turbine nacelle information (WNAC) .26
26 6.2.8 Wind turbine yawing information (WYAW).27
27 6.2.9 Wind turbine tower information (WTOW).28
28 6.2.10 Wind power plant meteorological information (WMET).28
29 6.2.11 Wind power plant event information (WEVT) .29
30 6.2.12 Wind turbine state log information (WSLG) .30
31 6.2.13 Wind turbine analogue log information (WALG).33
32 6.2.14 Wind turbine report information (WREP) .37
33 6.2.15 Wind power plant active power control (WAPC) .38
34 6.2.16 Wind power plant reactive power control (WRPC) .40
35 6.3 Data name semantic .40
36 7 Common data classes .52
37 7.1 Basic concepts for common data classes (CDC).52
38 7.1.1 Categories of common data classes .52
39 7.1.2 Structure of common data classes .52
40 7.2 Common data class attributes .56
41 7.2.1 Analogue Value .56
42 7.2.2 TimeStamp .56
43 7.2.3 Quality.58
44 7.2.4 Units.58
45 7.3 Wind power plant specific common data classes (CDC) .59
46 7.3.1 General .59
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61400-25-2 Ed.1/CDV © IEC:2005
1 7.3.2 Setpoint value (SPV).59
2 7.3.3 Status Value (STV) .60
3 7.3.4 Alarm (ALM) .61
4 7.3.5 Command (CMD) .63
5 7.3.6 Event counting (CTE) .63
6 7.3.7 State timing (TMS) .65
7 7.4 Common data classes inherited from IEC61850-7-3 .66
8 7.4.1 CDCs from IEC 61850-7-3 (unchanged).66
9 7.4.2 CDCs from IEC 61850-7-3 (specialised) .66
10 7.5 Common data class attribute semantics .68
11 Annex A (normative) Information model for statistical data and historical statistical
12 data .74
13 A.1 Introduction .74
14 A.2 Model for statistical and historical statistical data .74
15 A.3 Logical node extension for statistical DATA.77
16 A.3.1 Data for calculation method for analogue and statistical analogue
17 values 77
18 A.3.2 Data name semantics.77
19 A.4 Common data class for statistical data .79
20 A.4.1 Object reference setting group common data class (ORG) .79
21 Annex B (normative) Value range for units and multiplier .80
22 Annex C (informative) Wind Power Plant Controller .83
23 C.1 Introduction .83
24 C.2 Active Power Control functions .84
25 C.3 Reactive Power control functions .87
26 Annex D (informative) List of mandatory logical nodes and data.89
27 D.1 General .89
28
29 Figure 1 – Conceptual communication model of IEC 61400-25.10
30 Figure 2 – Relationship of logical nodes .16
31 Figure 3 – Use of instances of logical nodes.18
32
33 Table 1 – System specific logical nodes .16
34 Table 2 – Wind power plant specific logical nodes .17
35 Table 3 – Wind turbine specific logical nodes .17
36 Table 4 – Wind power plant common logical node class.19
37 Table 5 – Logical node zero class .19
38 Table 6 – Physical device information class.20
39 Table 7 – LN: Wind turbine general information (WTUR) .21
40 Table 8 – LN: Wind turbine rotor information (WROT) .22
41 Table 9 – LN: Wind turbine transmission information (WTRM).23
42 Table 10 – LN: Wind turbine generator information (WGEN) .24
43 Table 11 – LN: Wind turbine converter information (WCNV) .25
44 Table 12 – LN: Wind turbine transformer information (WTRF) .26
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1 Table 13 – LN: Wind turbine nacelle information (WNAC) .26
2 Table 14 – LN: Wind turbine yawing information (WYAW) .28
3 Table 15 – LN: Wind turbine tower information (WTOW) .28
4 Table 16 – LN: Wind power plant meteorological information (WMET) .29
5 Table 17 – LN: Wind power plant event information (WEVT) .29
6 Table 18 – LN: Wind turbine state log information (WSLG).30
7 Table 19 – Wind turbine status logs.31
8 Table 20 – DATA-SET for commands log TurCmLg .31
9 Table 21 – DATA-SET for status log TurStLog .32
10 Table 22 – DATA-SET for alarm logs HiUrgAlm and LowUrgAlm .32
11 Table 23 – DATA-SET for status log TurCtLog .33
12 Table 24 – DATA-SET for status log TurTmLog .33
13 Table 25 – LN: Wind turbine analogue log information (WALG) .34
14 Table 26 – Wind turbine analogue logs.34
15 Table 27 – DATA-SET for analogue log TurAnLog .35
16 Table 28 – DATA-SET for three phase log TurPhLog.35
17 Table 29 – DATA-SET for setpoint logs HiAcsSp and LoAcsSp .36
18 Table 30 – DATA-SET for transient logs TrgEmgStop and TrgProdGri.36
19 Table 31 – LN: Wind turbine report information (WREP) .37
20 Table 32 – Wind turbine report information DATA-SETs.37
21 Table 33 – DATA-SET for analogue characteristics TurRpCh .38
22 Table 34 – DATA-SET for time durations .38
23 Table 35 – DATA-SET for event counts .38
24 Table 36 – LN: Wind power plant active power control information (WAPC).39
25 Table 37 – LN: Wind power plant reactive power control information (WRPC).40
26 Table 38 – Data name semantic .41
27 Table 39 – General table structure of a common data class (CDC).53
28 Table 40 – Common data class attributes .53
29 Table 41 – Conditions for the presence of an attribute .54
30 Table 42 – CDC: Attribute basic types .55
31 Table 43 – Analogue value.56
32 Table 44 – TimeStamp type .56
33 Table 45 – TimeQuality definition .57
34 Table 46 – TimeAccuracy.58
35 Table 47 – Quality .58
36 Table 48 – Unit .58
37 Table 49 – Wind power plant specific common data classes .59
38 Table 50 – CDC: Setpoint value (SPV) .60
39 Table 51 – CDC: Status Value (STV).61
40 Table 52 – CDC: Alarm (ALM) .62
41 Table 53 – CDC: Command (CMD).63
42 Table 54 – CDC: Event counting (CTE) .64
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1 Table 55 – CDC: State timing (TMS) .65
2 Table 56 – Specialized common data classes.66
3 Table 57 – Device name plate common data class specification WDPL .66
4 Table 58 – Common data class attribute semantic .68
5
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61400-25-2 Ed.1/CDV © IEC:2005
1
2 INTERNATIONAL ELECTROTECHNICAL COMMISSION
3 ____________
4
5 WIND TURBINES –
6
7 Part 25-2:
8 Communications for monitoring and control of wind power plants –
9 Information models
10
11 FOREWORD
12 1) The IEC (International Electrotechnical Commission) is a worldwide organisation for standardisation comprising
13 all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
14 international co-operation on all questions concerning standardisation in the electrical and electronic fields. To
15 this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
16 entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
17 participate in this preparatory work. International, governmental and non-governmental organisations liaising
18 with the IEC also participate in this preparation. The IEC collaborates closely with the International
19 Organisation for Standardisation (ISO) in accordance with conditions determined by agreement between the
20 two organisations.
21 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
22 international consensus of opinion on the relevant subjects since each technical committee has representation
23 from all interested National Committees.
24 3) The documents produced have the form of recommendations for international use and are published in the form
25 of standards, technical specifications, technical reports or guides and they are accepted by the National
26 Committees in that sense.
27 4) In order to promote international unification, IEC National Committees undertake to apply IEC International
28 Standards transparently to the maximum extent possible in their national and regional standards. Any
29 divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
30 indicated in the latter.
31 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
32 equipment declared to be in conformity with one of its standards.
33 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
34 of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
35 Recipients of this document are invited to submit, with their comments, notification of
36 any relevant patent rights of which they are aware and to provide supporting documen-
37 tation.
38 This committee draft for voting of the International Standard IEC 61400-25 has been prepared
39 by IEC technical committee 88: Wind turbines Project team 25.
40 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
41 IEC 61400-25 consists of the following parts, under the general title Communications for
42 monitoring and control of wind power plants:
1
43 Part 25-1: Overall description on principles and models
1
44 Part 25-2: Information models
1
45 Part 25-3: Information Exchange Models
1
46 Part 25-4: Specific communication service mappings (SCSM)
1
47 Part 25-5: Conformance testing
48
———————
1
To be published
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61400-25-2 Ed.1/CDV © IEC:2005
1 INTRODUCTION
2 This part of IEC 61400-25 is a part of set of specifications. IEC 61400-25 defines communica-
3 tion architecture for wind power plants. This architecture has been chosen to provide abstract
4 definitions of classes and services such that the specifications are independent of specific
5 protocol stacks, implementations, and operating systems. The mapping of these abstract
6 classes and services to communication stacks is outside the scope of IEC 61400-25-2 and
7 may be found in IEC 61400-25-4.
8 To reach interoperability, all data in the information model need a strong definition with regard
9 to syntax and semantics. The semantics of the data is mainly provided by names assigned to
10 logical nodes and data they contain, as defined in this part. Interoperability is easiest if as
11 much as possible of the data are defined as mandatory.
12 It should be noted that data with full semantics is only one of the elements required to achieve
13 interoperability. Since data and services are hosted by devices (IED), a proper device model
14 is needed along with compatible, domain specific services (see IEC 61400-25-3).
15 This part is used to specify the abstract definitions of a logical device class, logical node
16 classes, data classes, and abstract common data classes. These abstract definitions shall
17 be mapped into concrete object definitions that are to be used for a particular protocol.
18 The compatible logical node name and data name definitions found in this part and the
19 associated semantics are fixed.
20 NOTE 1 Performance of IEC 61400-25 implementations are application specific. The standard does not guarantee
21 a certain level of performance. That’s out of the scope. However there is no underlying limitation in the communica-
22 tions technology to prevent high speed application (millisecond level responses).
23 NOTE 2 The standard IEC 61400-25 has a close relation with other IEC projects like IEC 61850 Addendum 1
24 (Communication networks and systems in substations - Power Quality Monitoring), IEC 62350 (Communications
25 Systems for Distributed Energy Resources (DER)), and IEC 62344 (Hydroelectric power plants – Communication
26 for monitoring and control).
27
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61400-25-2 Ed.1/CDV © IEC:2005
1
2 WIND TURBINES –
3
4 Part 25-2:
5 Communications for monitoring and control of wind power plants –
6 Information models
7 1 Scope
8 The focus of IEC 61400-25 is on the communications between wind power plant components
9 such as wind turbines and actors such as SCADA Systems. Internal communication within
10 wind power plant components is outside the scope of this standard.
11 IEC 61400-25 is designed for a communication environment supported by a client-server
12 model. Three areas are defined, that are modelled separately to ensure the scalability of im-
13 plementations: (1) wind power plant information models, (2) information exchange model, and
14 (3) mapping of these two models to a standard communication profile.
15 The wind power plant information model and the information exchange model, viewed to-
16 gether, constitute an interface between client and server. In this conjunction, the wind power
17 plant information model serves as an interpretation frame for available wind power plant data.
18 The wind power plant information model is used by the server to offer the client a uniform,
19 component-oriented view of the wind power plant data. The information exchange model re-
20 flects the whole active functionality of the server. IEC 61400-25 enables connectivity between
21 a heterogeneous combination of client and servers from different manufacturers and suppli-
22 ers.
23 As depicted in Figure 1 IEC 61400-25 defines mainly a server with the following aspects:
24 − information provided by a real application of a wind power plant component, e. g.,
25 “wind turbine rotor speed” or “total power production of a certain time interval” is mod-
26 elled and made available for access.
27 − services to exchange values of the modelled information defined in part IEC 61400-
28 25-3
29 − mapping to a communication profile, providing a protocol stack, to carry the ex-
30 changed values from the modelled information (part IEC 61400-25-4)
31 IEC 61400-25 only defines how to model the information, information exchange and mapping
32 to specific communication protocols. The standard excludes a definition of how and where to
33 implement the communication interface. However, the objective of the standard is that the in-
34 formation associated with a single wind power plant component (such as the wind turbine) is
35 accessible through a corresponding logical device.
36 Part IEC 61400-25-2 specifies the information model of devices and functions related to wind
37 power plant applications. In particular, it specifies the compatible logical device names, logi-
38 cal node names, and data names for communication between wind power plant components.
39 This includes the relationship between logical devices, logical nodes and data. The names de-
40 fined in this document are used to build the hierarchical object references applied for commu-
41 nicating with components in wind power plants.
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61400-25-2 Ed.1/CDV © IEC:2005
1 This part of IEC 61400-25 specifies common attribute types and common data classes related
2 to wind turbine applications. In particular it specifies common data classes for:
3 • Setpoint value
4 • Status value
5 • Alarm
6 • Command
7 • Event counting
8 • State timing
Communication model of IEC 61400-25
Client Server
Messaging
Messaging
Information exchange Information exchange
Information exchange through mapping Information exchange
through mapping
model (get, set, report, model (get, set, report,
model (get, set, report, to communication model (get, set, report,
to communication
log, control, publish / log, control, publish /
log, control, publish / profile (Read, log, control, publish /
profile (Read,
subscribe, …) subscribe, …)
subscribe, …) write, . message) subscribe, …)
write, . message)
defined in defined in
defined in defined in defined in
defined in
...
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