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Database on Wind Characteristics - Contents of Database Bank, revision I

Larsen Gunner Christian; Hansen Kurt Schaldemose

The main objective of IEA R&D Wind Annex XVII - Database on Wind
Characteristics - has been to provide wind energy planners, designers and researchers, as well
as the international wind engineering community in general, with a source of actual wind field
data (time series and resource data) observed in a wide range of different wind climates and
terrain types. Connected to an extension of the initial Annex period, the scope for the
continuation was widened to include also support to the international wind turbine
standardisation efforts. The project partners are Sweden, Norway, U.S.A., The Netherlands
and Denmark, with Denmark as the Operating Agent.
The reporting of the continuation of Annex XVII falls in two separate parts. Part one accounts
in details for the available data in the established database bank, and part two describes various
data analyses performed with the overall purpose of improving the design load cases with
relevance for to wind turbine structures.
The present report constitutes the first part of the Annex XVII reporting. Basically, the
database bank contains four categories of data, i.e. i) high sampled wind field time series; ii)
high sampled wind turbine structural response time series; iii) wind resource data; and iv) wind
farm data. The main emphasis, however, is on category i). The available data, within each of
the four categories, are described in details. The description embraces site characteristics,
terrain type, measurement set-up and the amount of available data.

Funded by the Danish Energy Agency: ENS-1363/02-0013
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