IEC 61400-21:2008 Withdrawn

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

Note: this publication has been replaced by IEC 61400-21-1:2019


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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 (<9 kHz); response to voltage dips; active power ramp rate limitation and set-point control; reactive power capabilities and set-point control; grid protection and reconnection time after grid faults.

This publication is of high relevance for Smart Grid.

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Relevant for

rural electrification

wind power

Additional information

Publication typeInternational Standard
Publication date2008-08-13
Withdrawal date2019-05-20
Available language(s)English/French, Spanish
TC/SCTC 88 - Wind energy generation systemsrss
ICS27.180 - Wind turbine energy systems
Stability date  2019
File size1694 KB

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