CENELEC
Project
| Reference | EN 61400-21:2008 |
|---|---|
| Title | Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines |
| Project Number | 21139 |
| Abstract/Scope | 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. |
| Status |
Published
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Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2008-11-07 |
| Current Stage code deadline | 2009-07-01 |
| Deadline date for vote |
Legal
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Details
| IEC Technical Body | IEC/TC 88 |
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| Reference Document | IEC 61400-21:2008 (EQV) |
| ICS | 27.180 - Wind turbine systems and other alternative sources of energy |
| Keywords | Wind; Turbine; Power quality; Grid connected |
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| Special National Condition(s) |
Environment
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Product Life Cycle
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2008-10-01 |
|---|---|
| date of Availability (DAV) (2) | 2008-11-07 |
| date of Announcement (DOA) (3) | 2009-01-01 |
| date of Publication (DOP) (4) | 2009-07-01 |
| date of Withdrawal (DOW) (5) | 2011-10-01 |
Relations
| Supersedes | EN 61400-21:2002 |
|---|---|
| Superseded by | |
| Normative reference (6) |
EN 60044-1:1999
EN 60044-2:1999 IEC 60050-161:1990 IEC 60050-415:1999 EN 61000-4-7:2002 EN 61000-4-15:1998 EN 61400-12-1:2006 EN 61800-3:2004 EN 62008:2005 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
