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EN 61400-12-1:2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Wind energy generation systems - Part 12-1: Power performance measurement of electricity producing wind turbines
Superseded date

01-07-2020

Published date

06-02-2017

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Power performance method overview
6 Preparation for performance test
7 Test equipment
8 Measurement procedure
9 Derived results
10 Reporting format
Annex A (normative) - Assessment of influences caused
        by wind turbines and obstacles at the test site
Annex B (normative) - Assessment of terrain at the test
        site
Annex C (normative) - Site calibration procedure
Annex D (normative) - Evaluation of uncertainty in
        measurement
Annex E (informative) - Theoretical basis for determining
        the uncertainty of measurement using the method of
        bins
Annex F (normative) - Wind tunnel calibration procedure
        for Anemometers
Annex G (normative) - Mounting of instruments on the
        meteorological mast
Annex H (normative) - Power performance testing of small
        wind turbines
Annex I (normative) - Classification of cup and sonic
        anemometry
Annex J (normative) - Assessment of cup and sonic
        anemometry
Annex K (normative) - In-situ comparison of anemometers
Annex L (normative) - The application of remote sensing
        technology
Annex M (informative) - Normalisation of power curve data
        according to the turbulence intensity
Annex N (informative) - Wind tunnel calibration procedure for
        wind direction sensors
Annex O (informative) - Power performance testing in cold
        climate
Annex P (informative) - Wind shear normalisation procedure
Annex Q (informative) - Definition of the rotor equivalent wind
        speed under consideration of wind veer
Annex R (informative) - Uncertainty considerations for tests on
        multiple turbines
Annex S (informative) - Mast flow distortion correction for lattice
        masts
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

NEW!IEC 61400-12-1:2017 is available as IEC 61400-12-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC61400-12-1:2017 specifies a procedure for measuring the power performance characteristics of a single wind turbine and applies to the testing of wind turbines of all types and sizes connected to the electrical power network. In addition, this standard describes a procedure to be used to determine the power performance characteristics of small wind turbines (as defined in IEC61400-2) when connected to either the electric power network or a battery bank. The procedure can be used for performance evaluation of specific wind turbines at specific locations, but equally the methodology can be used to make generic comparisons between different wind turbine models or different wind turbine settings when site-specific conditions and data filtering influences are taken into account. This new edition includes the following significant technical changes with respect to the previous edition: new definition of wind speed, inclusion of wind shear and wind veer, revision of air density correction, revision of site calibration, revision to definition of power curve, interpolation to bin centre method, revision of obstacle model, etc.



Key words: Wind turbines, Wind energy, renewable energy, performance, efficiency

Committee
CLC/TC 88
DevelopmentNote
Supersedes EN 61400-12. (06/2006)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
SupersededBy
Supersedes

UNE-EN 61400-11:2013 Wind turbines - Part 11: Acoustic noise measurement techniques
CEI EN 61400-25-1 : 2007 WIND TURBINES - PART 25-1: COMMUNICATIONS FOR MONITORING AND CONTROL OF WIND POWER PLANTS - OVERALL DESCRIPTION OF PRINCIPLES AND MODELS
BS EN 61400-21:2008 Wind turbines Measurement and assessment of power quality characteristics of grid connected wind turbines
CEI EN 61400-22 : 2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
I.S. EN 61400-21:2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
EN 61400-11:2013 Wind turbines - Part 11: Acoustic noise measurement techniques
EN 61400-2:2014 Wind turbines - Part 2: Small wind turbines
I.S. EN 61400-2:2014 WIND TURBINES - PART 2: SMALL WIND TURBINES
BS EN IEC 61400-12-2:2013 Wind turbines Power performance of electricity-producing wind turbines based on nacelle anemometry
I.S. EN 61400-13:2016 WIND TURBINES - PART 13: MEASUREMENT OF MECHANICAL LOADS
UNE-EN 61400-2:2015 Wind turbines - Part 2: Small wind turbines
I.S. EN 61400-12-2:2013 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITYPRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY
I.S. EN 61400-11:2013 WIND TURBINES - PART 11: ACOUSTIC NOISE MEASUREMENT TECHNIQUES (IEC 61400-11:2012 (EQV))
BS EN 61400-11 : 2013 WIND TURBINES - PART 11: ACOUSTIC NOISE MEASUREMENT TECHNIQUES
UNE-EN 61400-22:2011 Wind turbines - Part 22: Conformity testing and certification
BS EN 61400-13:2016 Wind turbines Measurement of mechanical loads
OVE/ONORM EN 61400-25-1 : 2007 WIND TURBINES - PART 25-1: COMMUNICATIONS FOR MONITORING AND CONTROL OF WIND POWER PLANTS - OVERALL DESCRIPTION OF PRINCIPLES AND MODELS
CEI EN 61400-12-2 : 2013 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITY PRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY
CEI EN 61400-11 : 2014 WIND TURBINES - PART 11: ACOUSTIC NOISE MEASUREMENT TECHNIQUES
EN 61400-12-2:2013/AC:2016-10 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITYPRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY (IEC 61400-12-2:2013/COR1:2016)
EN 61400-22:2011 Wind turbines - Part 22: Conformity testing and certification
CEI EN 61400-21 : 2011 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
I.S. EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
EN 61400-13:2016 Wind turbines - Part 13: Measurement of mechanical loads
EN 61400-21:2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES

EN 60688:2013 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
IEC 61869-3:2011 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
EN 61400-12-2:2013/AC:2016-10 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITYPRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY (IEC 61400-12-2:2013/COR1:2016)
IEC 61869-2:2012 Instrument transformers - Part 2: Additional requirements for current transformers
IEC 60688:2012 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
EN 61869-3 : 2011 INSTRUMENT TRANSFORMERS - PART 3: ADDITIONAL REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS (IEC 61869-3:2011)
EN ISO/IEC 17043:2010 Conformity assessment - General requirements for proficiency testing (ISO/IEC 17043:2010)
EN 61869-2 : 2012 INSTRUMENT TRANSFORMERS - PART 2: ADDITIONAL REQUIREMENTS FOR CURRENT TRANSFORMERS
IEC 61869-1:2007 Instrument transformers - Part 1: General requirements
ISO 2533:1975 Standard Atmosphere
EN 61869-1:2009 Instrument transformers - Part 1: General requirements
ISO 16622:2002 Meteorology Sonic anemometers/thermometers Acceptance test methods for mean wind measurements
ISO/IEC 17043:2010 Conformity assessment — General requirements for proficiency testing
IEC 61400-2:2013 Wind turbines - Part 2: Small wind turbines
ISO 3966:2008 Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes
IEC 61400-1:2005+AMD1:2010 CSV Wind turbines - Part 1: Design requirements
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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