• BS EN 61400-21:2008

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Wind turbines Measurement and assessment of power quality characteristics of grid connected wind turbines

    Available format(s):  Hardcopy, PDF

    Superseded date:  07-05-2021

    Language(s):  English

    Published date:  31-01-2009

    Publisher:  British Standards Institution

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

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Definitions
    4 Symbols and units
    5 Abbreviations
    6 Wind turbine power quality characteristic parameters
      6.1 General
      6.2 Rated data
      6.3 Maximum permitted power
      6.4 Maximum measured power
      6.5 Reactive power
      6.6 Voltage fluctuations
      6.7 Harmonics
    7 Measurement procedures
      7.1 General
      7.2 Rated data
      7.3 Maximum permitted power
      7.4 Maximum measured power
      7.5 Reactive power
      7.6 Voltage fluctuations
      7.7 Harmonics
    8 Assessment of power quality
      8.1 General
      8.2 Steady-state voltage
      8.3 Voltage fluctuations
      8.4 Harmonics
    Annex A (informative) Sample report format
    Annex B (informative) Voltage fluctuations and flicker
    Annex ZA (normative) Normative references to international
                           publications with their corresponding
                           European publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Includes: - definition and specification of the quantities to be determined for characterizing the power quality of a grid connected wind turbine; - measurement procedures for quantifying the characteristics; - procedures for assessing compliance with power quality requirements, including estimation of the power quality expected from the wind turbine type when deployed at a specific site, possible in groups.

    Scope - (Show below) - (Hide below)

    IEC 61400-21:2008 covers the definition and specification of the quantities to be determined for characterizing the power quality of a grid connected wind turbine; measurement procedures for quantifying the characteristics; and procedures for assessing compliance with power quality requirements, including estimation of the power quality expected from the wind turbine type. The main changes with respect to the previous edition deal with interharmonics and current distortions (

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

    Committee PEL/88
    Development Note Supersedes 99/200754 DC. (01/2003) Supersedes 06/30148073 DC. (02/2009)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    IEC 61800-3:2017 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
    EN 60044-2:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    IEC 61000-4-30 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    IEC 60050-415:1999 International Electrotechnical Vocabulary (IEV) - Part 415: Wind turbine generator systems
    IEC 61000-4-15 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-15: TESTING AND MEASUREMENT TECHNIQUES - FLICKERMETER - FUNCTIONAL AND DESIGN SPECIFICATIONS
    EN 61000-4-30:2015/AC:2017-01 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS (IEC 61000-4-30:2015/COR1:2016)
    IEC 61400-12-1:2017 Wind energy generation systems - Part 12-1: Power performance measurements of electricity producing wind turbines
    EN 61000-3-3:2013 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION (IEC 61000-3-3:2013)
    IEC 60044-2:1997+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 2 : Inductive voltage transformers
    EN 62008 : 2005 PERFORMANCE CHARACTERISTICS AND CALIBRATION METHODS FOR DIGITAL DATA ACQUISITION SYSTEMS AND RELEVANT SOFTWARE
    EN 61000-4-7:2002/A1:2009 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-7: TESTING AND MEASUREMENT TECHNIQUES - GENERAL GUIDE ON HARMONICS AND INTERHARMONICS MEASUREMENTS AND INSTRUMENTATION, FOR POWER SUPPLY SYSTEMS AND EQUIPMENT CONNECTED THERETO (IEC 61000-4-7:2002/A1:2008)
    IEC 62008:2005 Performance characteristics and calibration methods for digital data acquisition systems and relevant software
    EN 61400-1:2005/A1:2010 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
    EN 61400-12-1:2017 WIND POWER GENERATION SYSTEMS - PART 12-1: POWER PERFORMANCE MEASUREMENT OF ELECTRICITY PRODUCING WIND TURBINES (IEC 61400-12-1:2017)
    IEC 60044-1:1996+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 1: Current transformers
    IEC TR 61000-3-7:2008 Electromagnetic compatibility (EMC) - Part 3-7: Limits - Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems
    IEC 61000-4-7:2002+AMD1:2008 CSV Electromagnetic compatibility (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto
    EN 61800-3 : 2004 AMD 1 2012 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 3: EMC REQUIREMENTS AND SPECIFIC TEST METHODS (IEC 61800-3:2004/A1:2011)
    IEC 61000-3-3 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION
    EN 60044-1:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    IEC TR 61000-3-6:2008 Electromagnetic compatibility (EMC) - Part 3-6: Limits - Assessment of emission limits for the connection of distorting installations to MV, HV and EHV power systems
    IEC 61400-1:2005+AMD1:2010 CSV Wind turbines - Part 1: Design requirements
    EN 61000-4-15:2011 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-15: TESTING AND MEASUREMENT TECHNIQUES - FLICKERMETER - FUNCTIONAL AND DESIGN SPECIFICATIONS (IEC 61000-4-15:2010)
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