• IEC 61400-12-1:2017

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 measurements of electricity producing wind turbines

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  05-09-2022

    Language(s):  English - French, Spanish, Castilian

    Published date:  03-03-2017

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    IEC 61400-12-1:2017 is also 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.

    IEC 61400-12-1:2017 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 IEC 61400-2) 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
    The contents of the corrigendum 1 of September 2019, corrigendum 2 of March 2020 and corrigendum 3 of May 2021 have been included in this copy.

    General Product Information - (Show below) - (Hide below)

    Committee TC 88
    Development Note Supersedes IEC 61400-12. (12/2005) Also available in CD-ROM format. Stability Date: 2018. (03/2017) NEW CHILD CREATED COR1 2019 NEW CHILD COR 2 2020 IS ADDED. NEW CHILD COR 3 2021 IS ADDED.
    Document Type Standard
    Product Note NEW CHILD CREATED COR1 2019 NEW CHILD COR 2 2020 IS ADDED. NEW CHILD COR 3 2021 IS ADDED.
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS ISO 28902-2:2017 Air quality. Environmental meteorology Ground-based remote sensing of wind by heterodyne pulsed Doppler lidar
    NF EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
    CEI EN 61400-22 : 2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
    CLC/TS 61400-26-3:2017 Wind energy generation systems - Part 26-3: Availability for wind power stations
    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 (IEC 61400-11:2012)
    IEC 61400-2:2013 Wind turbines - Part 2: Small wind turbines
    EN 61400-2:2014 WIND TURBINES - PART 2: SMALL WIND TURBINES (IEC 61400-2:2013)
    BIS IS/IEC 61400-21 : 2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
    12/30248232 DC : DRAFT AUG 2012 BS EN 61400-2 - WIND TURBINES - PART 2: SMALL WIND TURBINES
    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
    11/30148668 DC : 0 IEC 61400-12-2 - WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITY PRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY
    NF EN 61400-2 : 2014 WIND TURBINES - PART 2: SMALL WIND TURBINES
    S.R. CLC/TS 61400-26-2:2017 WIND TURBINES - PART 26-2: PRODUCTION-BASED AVAILABILITY FOR WIND TURBINES
    IEC TS 62600-201:2015 Marine energy - Wave, tidal and other water current converters - Part 201: Tidal energy resource assessment and characterization
    CSA C61400-2:2008 WIND TURBINES - PART 2: DESIGN REQUIREMENTS FOR SMALL WIND TURBINES
    BS EN 61400-2:2014 (published 2014-10) Wind turbines Small wind turbines
    PD CLC/TS 61400-26-2:2017 Wind turbines Production-based availability for wind turbines
    I.S. EN 61400-2:2014 WIND TURBINES - PART 2: SMALL WIND TURBINES
    IEC TS 62600-200:2013 Marine energy - Wave, tidal and other water current converters - Part 200: Electricity producing tidal energy converters - Power performance assessment
    BS EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
    10/30205316 DC : 0 BS EN 61400-11 - WIND TURBINES - PART 11: ACOUSTIC NOISE MEASUREMENT TECHNIQUES
    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
    ISO 28902-2:2017 Air quality — Environmental meteorology — Part 2: Ground-based remote sensing of wind by heterodyne pulsed Doppler lidar
    CSA IEC 61400-11 : 2013(R 2018) WIND TURBINES - PART 11: ACOUSTIC NOISE MEASUREMENT TECHNIQUES
    I.S. EN 61400-12-2:2013 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITYPRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY
    CSA C61400-2 : 2008 : R2013 WIND TURBINES - PART 2: DESIGN REQUIREMENTS FOR SMALL WIND TURBINES
    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
    IEC TS 61400-26-2:2014 Wind turbines - Part 26-2: Production-based availability for wind turbines
    UNE-EN 61400-22:2011 Wind turbines -- Part 22: Conformity testing and certification
    UNE-EN 61400-11:2013 Wind turbines - Part 11: Acoustic noise measurement techniques
    CLC/TS 61400-26-2:2017 Wind turbines - Part 26-2: Production-based availability for wind turbines
    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
    BS PD IEC TS 62600-201 : 2015 MARINE ENERGY - WAVE, TIDAL AND OTHER WATER CURRENT CONVERTERS - PART 201: TIDAL ENERGY RESOURCE ASSESSMENT AND CHARACTERIZATION
    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
    BS PD IEC TS 62600-200 : 2013 MARINE ENERGY - WAVE, TIDAL AND OTHER WATER CURRENT CONVERTERS - PART 200: ELECTRICITY PRODUCING TIDAL ENERGY CONVERTERS - POWER PERFORMANCE ASSESSMENT
    BS PD IEC TS 61400-26-2 : 2014 WIND TURBINES - PART 26-2: PRODUCTION-BASED AVAILABILITY FOR WIND TURBINES
    NF EN 61400-21 : 2009 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
    CSA C61400-2 : 2008 : R2018 WIND TURBINES - PART 2: DESIGN REQUIREMENTS FOR SMALL WIND TURBINES
    S.R. CLC/TS 61400-26-3:2017 WIND ENERGY GENERATION SYSTEMS - PART 26-3: AVAILABILITY FOR WIND POWER STATIONS
    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 61400-11:2012 Wind turbines - Part 11: Acoustic noise measurement techniques
    EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION (IEC 61400-22:2010)
    IEC TS 61400-26-3:2016 Wind energy generation systems - Part 26-3: Availability for wind power stations
    IEC 61400-21:2008 Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines
    IEC 61400-13:2015 Wind turbines - Part 13: Measurement of mechanical loads
    BS EN 61400-21:2008 Wind turbines Measurement and assessment of power quality characteristics of grid connected wind turbines
    PD CLC/TS 61400-26-3:2017 Wind energy generation systems Availability for wind power stations
    PD IEC/TS 61400-26-3:2016 Wind energy generation systems Availability for wind power stations
    NF EN 61400-12-2 : 2013 WIND TURBINES - PART 12-2: POWER PERFORMANCE OF ELECTRICITY PRODUCING WIND TURBINES BASED ON NACELLE ANEMOMETRY
    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
    IEC 61400-22:2010 Wind turbines - Part 22: Conformity testing and certification
    EN 61400-13:2016 WIND TURBINES - PART 13: MEASUREMENT OF MECHANICAL LOADS (IEC 61400-13:2015)
    EN 61400-21:2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES

    Standards Referencing This Book - (Show below) - (Hide below)

    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
    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
    IEC 61869-1:2007 Instrument transformers - Part 1: General requirements
    ISO 2533:1975 Standard Atmosphere
    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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