EN IEC 61400-12-2:2022
(Main)Wind energy generation systems - Part 12-2: Power performance of electricity producing wind turbines based on nacelle anemometry
Wind energy generation systems - Part 12-2: Power performance of electricity producing wind turbines based on nacelle anemometry
IEC 61400-12-2:2022 specifies a procedure for verifying the power performance characteristics of a single electricity-producing, horizontal axis wind turbine that is not considered to be a small wind turbine per IEC 61400-2. It is expected that this document be used when the specific operational or contractual specifications do not comply with the requirements set out in IEC 61400-12-1. The purpose of this document is to provide a uniform methodology of measurement, analysis, and reporting of power performance characteristics for individual electricity producing wind turbines utilising nacelle-anemometry methods. This document is intended to be applied only to horizontal axis wind turbines of sufficient size that the nacelle-mounted anemometer does not significantly affect the flow through the turbine’s rotor and around the nacelle and hence does not affect the wind turbine’s performance. This second edition of IEC 61400-12-2 is part of a structural revision that cancels and replaces the performance standards IEC 61400-12-1:2017 and IEC 61400-12-2:2013. The structural revision contains no technical changes with respect to IEC 61400-12-1:2017 and IEC 61400‑12‑2:2013, but the parts that relate to wind measurements, measurement of site calibration and assessment of obstacle and terrain have been extracted into separate standards.
Windenergieanlagen - Teil 12- 2: Leistungsverhalten von stromerzeugenden Windenergieanlagen auf der Grundlage der Gondelanemometrie
Systèmes de génération d'énergie éolienne - Partie 12-2: Performance de puissance des éoliennes de production d'électricité fondée sur l'anémométrie de nacelle
L'IEC 61400-12-2:2022 spécifie une procédure de vérification des caractéristiques de performance de puissance d'une éolienne simple de production d'électricité à axe horizontal, qui n'est pas considérée comme un petit aérogénérateur selon l’IEC 61400-2. Il est prévu que le présent document soit utilisé lorsque les spécifications de fonctionnement ou contractuelles spécifiques ne sont pas conformes aux exigences définies dans l’IEC 61400‑12‑1. Le présent document a pour objet de fournir une méthodologie uniforme de mesure, d'analyse et de rapport des caractéristiques de performance de puissance de chacune des éoliennes de production d'électricité qui applique les méthodes d'anémométrie de nacelle. Le présent document est destiné à être appliqué uniquement aux éoliennes à axe horizontal et de taille suffisante pour que l’anémomètre monté sur la nacelle n’ait pas d’influence significative sur l’écoulement d’air dans le rotor de l’éolienne et autour de la nacelle, et n’ait donc pas d’influence sur les performances de l’éolienne. Cette deuxième édition de l’IEC 61400-12-2 fait partie d’une révision structurelle qui annule et remplace les normes de performance IEC 61400-12-1:2017 et IEC 61400-12-2:2013. Cette révision structurelle ne contient aucune modification technique par rapport à l'IEC 61400‑12‑1:2017 et l'IEC 61400-12‑2:2013. Toutefois, les parties relatives aux mesurages du vent, au mesurage de l'étalonnage du site et à l'évaluation des obstacles et du terrain ont été extraites vers des normes distinctes.
Sistemi za proizvodnjo energije na veter - 12-2. del: Ugotavljanje elektroenergetske zmogljivosti vetrnih turbin po načelu merjenja hitrosti vetra skozi gondolo (IEC 61400-12-2:2022)
Ta del standarda IEC 61400-12 določa postopek za preverjanje elektroenergetske zmogljivosti posamezne vetrne turbine s horizontalno osjo, ki proizvaja električno energijo in v skladu s standardom IEC 61400-2 ni mala vetrna turbina. Ta dokument naj bi se predvidoma uporabljal, ko določene operativne ali pogodbene specifikacije niso v skladu z zahtevami iz standarda IEC 61400-12-1. Postopek se lahko uporabi za vrednotenje elektroenergetske zmogljivosti določenih turbin na določenih lokacijah, vendar je metodologijo mogoče uporabiti tudi za splošne primerjave med različnimi modeli ali nastavitvami turbin. Namen tega dokumenta je zagotoviti enotno metodologijo merjenja, analize in poročanja o elektroenergetski zmogljivosti posameznih vetrnih turbin, ki proizvajajo elektriko po načelu merjenja hitrosti vetra skozi gondolo. Dokument naj bi se uporabljal le za vetrne turbine z vodoravno osjo, ki so dovolj velike, da anemometer, nameščen na gondolo, ne vpliva bistveno na pretok skozi rotor turbine in okoli gondole ter zato ne vpliva na delovanje vetrne turbine. Namen tega dokumenta je, da se metode, predstavljene v njem, uporabijo, kadar zahteve iz standarda IEC 61400-12-1 niso izvedljive. To zagotavlja, da so rezultati v okviru trenutnega stanja tehnike za instrumentacijo in merilne tehnike čim bolj dosledni, natančni in ponovljivi. Ta dokument opisuje, kako označiti elektroenergetsko zmogljivost vetrne turbine, kar zadeva izmerjeno krivuljo električne energije in ocenjeno vrednost AEP. Zagotavlja smernice o premislekih glede negotovosti v zvezi z elektroenergetsko zmogljivostjo vzorca preskušenih turbin glede na elektroenergetsko zmogljivost vseh turbin v vetrni elektrarni. Zagotavlja tudi smernice za vrednotenje kombinirane negotovosti za primer, ko se preskuša več turbin.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2023
Nadomešča:
SIST EN 61400-12-2:2013
SIST EN 61400-12-2:2013/AC:2016
Sistemi za proizvodnjo energije na veter - 12-2. del: Ugotavljanje elektroenergetske
zmogljivosti vetrnih turbin po načelu merjenja hitrosti vetra skozi gondolo (IEC
61400-12-2:2022)
Wind energy generation systems - Part 12-2: Power performance of electricity producing
wind turbines based on nacelle anemometry (IEC 61400-12-2:2022)
Windenergieanlagen - Teil 12- 2: Leistungsverhalten von stromerzeugenden
Windenergieanlagen auf der Grundlage der Gondelanemometrie (IEC 61400-12-2:2022)
Systèmes de génération d'énergie éolienne - Partie 12-2: Performance de puissance des
éoliennes de production d'électricité fondée sur l'anémométrie de nacelle (IEC 61400-12-
2:2022)
Ta slovenski standard je istoveten z: EN IEC 61400-12-2:2022
ICS:
27.180 Vetrne elektrarne Wind turbine energy systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61400-12-2
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2022
ICS 27.180 Supersedes EN 61400-12-2:2013;
EN 61400-12-2:2013/AC:2016-10
English Version
Wind energy generation systems - Part 12-2: Power
performance of electricity producing wind turbines based on
nacelle anemometry
(IEC 61400-12-2:2022)
Systèmes de génération d'énergie éolienne - Partie 12-2: Windenergieanlagen - Teil 12- 2: Leistungsverhalten von
Performance de puissance des éoliennes de production stromerzeugenden Windenergieanlagen auf der Grundlage
d'électricité fondée sur l'anémométrie de nacelle der Gondelanemometrie
(IEC 61400-12-2:2022) (IEC 61400-12-2:2022)
This European Standard was approved by CENELEC on 2022-10-10. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61400-12-2:2022 E
European foreword
The text of document 88/823/CDV, future edition 2 of IEC 61400-12-2, prepared by IEC/TC 88 "Wind
energy generation systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 61400-12-2:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-07-10
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-10-10
document have to be withdrawn
This document supersedes EN 61400-12-2:2013 and all of its amendments and corrigenda (if any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61400-12-2:2022 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61400-2 NOTE Harmonized as EN 61400-2
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 60688 2021 Electrical measuring transducers for converting EN IEC 60688 202X
AC and DC electrical quantities to analogue or
digital signals
IEC 61400-12-1 - Wind energy generation systems - Part 12-1: EN IEC 61400-12-1 -
Power performance measurement of electricity
producing wind turbines
IEC 61400-12-3 - Wind energy generation systems - Part 12-3: EN IEC 61400-12-3 -
Power performance - Measurement based site
calibration
IEC 61400-12-5 2022 Wind energy generation systems - Part 12-5: EN IEC 61400-12-5 2022
Power performance - Assessment of obstacles
and terrain
IEC 61400-12-6 - Wind energy generation systems - Part 12-6: EN IEC 61400-12-6 -
Measurement based nacelle transfer function of
electricity producing wind turbines
IEC 61400-50-1 - Wind energy generation systems - Part 50-1: EN IEC 61400-50-1 -
Wind Measurement - Application of
Meteorological Mast, Nacelle and Spinner
Mounted Instruments
IEC 61869-2 - Instrument transformers - Part 2: Additional EN 61869-2 -
requirements for current transformers
IEC 61869-3 - Instrument transformers - Part 3: Additional EN 61869-3 -
requirements for inductive voltage transformers
ISO 2533 1975 Standard Atmosphere - -
ISO/IEC Guide 98-3 2008 Uncertainty of measurement - Part 3: Guide to - -
the expression of uncertainty in measurement
(GUM:1995)
Under preparation. Stage at the time of publication: prEN IEC 60688:2021.
Under preparation. Stage at the time of publication: FprEN IEC 61400-50-1:2022.
IEC 61400-12-2 ®
Edition 2.0 2022-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Wind energy generation systems –
Part 12-2: Power performance of electricity producing wind turbines based on
nacelle anemometry
Systèmes de génération d'énergie éolienne –
Partie 12-2: Performance de puissance des éoliennes de production d'électricité
fondée sur l'anémométrie de nacelle
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.180 ISBN 978-2-8322-5594-0
– 2 – IEC 61400-12-2:2022 © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 Symbols, units and abbreviated terms . 14
5 Overview of test method . 17
6 Preparation for performance test . 19
6.1 General . 19
6.2 Wind turbine . 19
6.3 Test site . 19
6.4 Nacelle wind speed transfer function . 20
6.5 Test plan . 20
7 Test equipment . 20
7.1 Electric power . 20
7.2 Wind speed . 21
7.3 Wind direction . 21
7.4 Air density. 21
7.5 Rotor speed . 22
7.6 Pitch angle . 22
7.7 Wind turbine status . 22
7.8 Data acquisition . 22
8 Measurement procedure . 23
8.1 General . 23
8.2 Wind turbine operation . 23
8.3 Data system(s) synchronisation . 23
8.4 Data collection . 24
8.5 Data quality check . 24
8.5.1 General . 24
8.5.2 Measured signals are in range and available . 24
8.5.3 Sensors are operating properly . 24
8.5.4 Ensure data acquisition system(s) is/are operating properly. 25
8.5.5 Sector self-consistency check . 25
8.6 Data rejection . 25
8.7 Data correction . 26
8.8 Database . 26
9 Derived results . 27
9.1 Data normalisation – Density correction . 27
9.2 Determination of measured power curve . 28
9.3 Annual energy production (AEP) . 28
9.4 Power coefficient . 29
9.5 Uncertainty analysis . 30
10 Reporting format . 30
Annex A (normative) Nacelle wind speed transfer function validity procedure . 38
A.1 General . 38
IEC 61400-12-2:2022 © IEC 2022 – 3 –
A.2 Measurement procedure: . 38
A.3 Terrain class and slope: . 38
A.4 Measurement hardware: . 38
A.5 Other turbine hardware: . 38
A.6 Turbine controls: . 39
Annex B (normative) Evaluation of uncer
...
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