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Title:
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Extreme wind conditions: Measurements at 50 m Meteorological Mast at ECN, Petten
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Author(s):
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Published by:
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Publication date:
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ECN
Wind Energy
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1-2-2004
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ECN report number:
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Document type:
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ECN-C--04-019
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ECN publication
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Number of pages:
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Full text:
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231
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Download PDF
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Abstract:
The ?Database
on Wind Characteristics? is a project of the IEA Wind R&D programme
(Annex XVII). The report describes the contribution on extreme wind
conditions by the Netherlands partner in the programme, ECN Wind Energy.
The database
as a whole, constitutes a valuable tool for a consistent calibration of the essential wind characteristics
for wind turbine design and development of standards. In addition, investigations
of a more fundamental and phenomenological character can conveniently
be supported by the full-scale wind field measurements contained in
the database. Although the database, in its present version, contains
a wide variety of wind turbine load relevant wind time series, it was
recognised that additional wind data would be needed to complete the
data selection. Since recent years important data such as those resulting
from wake measurements, three component offshore measurements suitable
for validation of especially the low frequency part of offshore wind
spectra, additional combined wind- and wave data from representative
offshore locations, extreme complex terrain measurements and long term
data sets covering time spans of at least 20 years, have been added
to the database.
This report describes the added data that are measured with the
50m high meteorological mast at ECN premises. The location is characterized
as coastal. ECN has selected 28 days from a period of three years in
which extreme events occurred. The extreme events are high average wind
speeds during storms, large wind speed gusts, large wind direction gusts,
heavy rain and large pressure fluctuations. In the appendix, the description
is given of the experimental set-up.
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