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IEC 61400-21:2008

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

31-12-2021

Language(s)

English - French, Spanish, Castilian

Published date

13-08-2008

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Abbreviations
6 Wind turbine power quality characteristic parameters
  6.1 General
  6.2 Wind turbine specification
  6.3 Voltage fluctuations
      6.3.1 General
      6.3.2 Continuous operation
      6.3.3 Switching operations
  6.4 Current harmonics, interharmonics and higher frequency
      components
  6.5 Response to voltage drops
  6.6 Active power
      6.6.1 Maximum measured power
      6.6.2 Ramp rate limitation
      6.6.3 Set-point control
  6.7 Reactive power
      6.7.1 Reactive power capability
      6.7.2 Set-point control
  6.8 Grid protection
  6.9 Reconnection time
7 Test procedures
  7.1 General
      7.1.1 Test validity
      7.1.2 Test conditions
      7.1.3 Test equipment
  7.2 Wind turbine specification
  7.3 Voltage fluctuations
      7.3.1 General
      7.3.2 Fictitious grid
      7.3.3 Continuous operation
      7.3.4 Switching operations
  7.4 Current harmonics, interharmonics and higher frequency
      components
  7.5 Response to temporary voltage drop
  7.6 Active power
      7.6.1 Maximum measured power
      7.6.2 Ramp rate limitation
      7.6.3 Set point control
  7.7 Reactive power
      7.7.1 Reactive power capability
      7.7.2 Set point control
  7.8 Grid protection
  7.9 Reconnection time
8 Assessment of power quality
  8.1 General
  8.2 Voltage fluctuations
      8.2.1 General
      8.2.2 Continuous operation
      8.2.3 Switching operations
  8.3 Current harmonics, interharmonics and higher frequency
      components
Annex A (informative) Sample report format
Annex B (informative) Voltage fluctuations and flicker
Annex C (informative) Measurement of active power, reactive
                      power and voltage
Bibliography

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 (

Committee
TC 88
DevelopmentNote
Stability Date: 2017. (09/2017)
DocumentType
Standard
Pages
120
PublisherName
International Electrotechnical Committee
Status
Superseded
Supersedes

IEC 61800-5-2 REDLINE : 2ED 2016 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-2: SAFETY REQUIREMENTS - FUNCTIONAL
IEC TS 62786:2017 Distributed energy resources connection with the grid
BS EN 61400-3:2009 Wind turbines Design requirements for offshore wind turbines
BS EN 61800-5-2:2017 Adjustable speed electrical power drive systems Safety requirements. Functional
BS EN 61400-27-1:2015 Wind turbines Electrical simulation models. Wind turbines
I.S. EN 61800-3:2005 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 3: EMC REQUIREMENTS AND SPECIFIC TEST METHODS (IEC 61800-3:2004 (EQV))
CEI EN 61400-22 : 2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
CSA C61400-3 : 2011 : R2016 WIND TURBINES - PART 3: DESIGN REQUIREMENTS FOR OFFSHORE WIND TURBINES
CSA C61400-1 : 2014 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
EN 61400-2:2014 Wind turbines - Part 2: Small wind turbines
EN 61400-3:2009 Wind turbines - Part 3: Design requirements for offshore wind turbines
EN 61800-5-2:2017 Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
UFC 3-540-08 : 2017 UNIFIED FACILITIES CRITERIA - UTILITY-SCALE RENEWABLE ENERGY SYSTEMS
NBR IEC 61400-1 : 2008 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
PD IEC/TS 62786:2017 Distributed energy resources connection with the grid
BS EN 61400-1 : 2005 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
BS EN 61800-3 : 2004 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 3: EMC REQUIREMENTS AND SPECIFIC TEST METHODS
PD IEC/TS 62910:2015 Utility-interconnected photovoltaic inverters. Test procedure for low voltage ride-through measurements
IEC 61800-3:2017 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
IEC 61800-5-2:2016 Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
NF EN 61400-1 : 2006 AMD 1 2015 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
I.S. EN 61400-2:2014 WIND TURBINES - PART 2: SMALL WIND TURBINES
17/30354643 DC : 0 BS EN 62933-2-1 - ELECTRIC ENERGY STORAGE (ESS) SYSTEMS - PART 2-1: UNIT PARAMETERS AND TESTING METHODS - GENERAL SPECIFICATION
IEC 61400-2:2013 Wind turbines - Part 2: Small wind turbines
EN 61400-1:2005/A1:2010 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
CEI CLC/TR 50373 : 2005 WIND TURBINES - ELECTROMAGNETIC COMPATIBILITY
CEI EN 61400-3 : 2009 WIND TURBINES - PART 3: DESIGN REQUIREMENTS FOR OFFSHORE WIND TURBINES
IEEE 1547.1-2005 IEEE Standard Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems
PD IEC WT 01:2001 IEC system for conformity testing and certification of wind turbines. Rules and procedures
UNE-EN 61400-2:2015 Wind turbines - Part 2: Small wind turbines
I.S. EN 61400-27-1:2015 WIND TURBINES - PART 27-1: ELECTRICAL SIMULATION MODELS - WIND TURBINES
PLUS 61400 (1st ed. pub. 2012) CSA guide to Canadian wind turbine codes and standards
EN IEC 62933-2-1:2018 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification
NF EN 61800-5-2 : 2017 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-2: SAFETY REQUIREMENTS - FUNCTIONAL
I.S. EN IEC 62933-2-1:2018 ELECTRICAL ENERGY STORAGE (EES) SYSTEMS - PART 2-1: UNIT PARAMETERS AND TESTING METHODS - GENERAL SPECIFICATION
CSA SPE.1000 : 2013 MODEL CODE FOR THE FIELD EVALUATION OF ELECTRICAL EQUIPMENT
IEC 62933-2-1:2017 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification
IEEE 1547.2 : 2008 APPLICATION GUIDE FOR IEEE STD 1547[TM], IEEE STANDARD FOR INTERCONNECTING DISTRIBUTED RESOURCES WITH ELECTRIC POWER SYSTEMS
UNE-EN 61400-22:2011 Wind turbines - Part 22: Conformity testing and certification
EN 61400-27-1:2015 Wind turbines - Part 27-1: Electrical simulation models - Wind turbines
I.S. EN 61400-1:2005 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
PD CLC/TR 50373:2004 Wind turbines. Electromagnetic compatibility
CEI EN 61800-5-2 : 2009 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-2: SAFETY REQUIREMENTS - FUNCTIONAL
CLC/TR 50373:2004 Wind turbines - Electromagnetic compatibility
IEC/IEEE PAS 63547:2011 Interconnecting distributed resources with electric power systems
IEC 61800-5-2:2016 RLV Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
EN 61400-22:2011 Wind turbines - Part 22: Conformity testing and certification
IEC 61400-1:2005+AMD1:2010 CSV Wind turbines - Part 1: Design requirements
IEC 61400-3:2009 Wind turbines - Part 3: Design requirements for offshore wind turbines
UNE-EN 61400-1:2006 Wind turbines - Part 1: Design requirements
14/30279327 DC : 0 BS EN 61800-3 AMD2 - ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 3: EMC REQUIREMENTS AND SPECIFIC TEST METHODS
NF EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
CEI EN 61400-27-1 : 2016 WIND TURBINES - PART 27-1: ELECTRICAL SIMULATION MODELS - WIND TURBINES
CSA C61400-3 : 2011 WIND TURBINES - PART 3: DESIGN REQUIREMENTS FOR OFFSHORE WIND TURBINES
I.S. EN 61400-3:2009 WIND TURBINES - PART 3: DESIGN REQUIREMENTS FOR OFFSHORE WIND TURBINES
I.S. EN 61400-22:2011 WIND TURBINES - PART 22: CONFORMITY TESTING AND CERTIFICATION
I.S. EN 61800-5-2:2017 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-2: SAFETY REQUIREMENTS - FUNCTIONAL
IEC WT 01:2001 IEC System for Conformity Testing and Certification of Wind Turbines - Rules and procedures
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 61400-22:2010 Wind turbines - Part 22: Conformity testing and certification

IEC 61800-3:2017 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
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
IEC 61400-12-1:2017 Wind energy generation systems - Part 12-1: Power performance measurements of electricity producing wind turbines
IEC 60044-2:1997+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 2 : Inductive voltage transformers
IEC 62008:2005 Performance characteristics and calibration methods for digital data acquisition systems and relevant software
IEC 60044-1:1996+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 1: Current transformers
IEC 61000-4-15:2010 Electromagnetic compatibility (EMC) - Part 4-15: Testing and measurement techniques - Flickermeter - Functional and design specifications
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 61000-3-3:2013 RLV 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 61000-4-7:2002+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
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
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

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