IEC 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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-31-2021
English - French, Spanish, Castilian
08-13-2008
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 |
Standards | Relationship |
NBN EN 61400-21 : 2010 | Identical |
NEN EN IEC 61400-21 : 2009 | Identical |
I.S. EN 61400-21:2008 | Identical |
SAC GB/T 20320 : 2013 | Identical |
VDE 0127-21 : 2009 | Identical |
BIS IS/IEC 61400-21 : 2008 | Identical |
CEI EN 61400-21 : 2011 | Identical |
EN 61400-21:2008 | Identical |
BS EN 61400-21:2008 | Identical |
PN EN 61400-21 : 2009 | Identical |
DIN EN 61400-21 : 2009 | Identical |
NF EN 61400-21 : 2009 | Identical |
UNE-EN 61400-21:2009 | Identical |
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 |
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 |
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 |
CSA SPE.1000 : 2013 | MODEL CODE FOR THE FIELD EVALUATION OF ELECTRICAL EQUIPMENT |
IEC 61800-3:2017 | Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods |
IEC 60050-415:1999 | International Electrotechnical Vocabulary (IEV) - Part 415: Wind turbine generator systems |
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 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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