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Title:
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PROTEST, Final Report
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Author(s):
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Holierhoek, J.G.; Lekou, D.; Hecquet, T.; Soker, H.
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Published by:
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Publication date:
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ECN
Wind Energy
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1-11-2010
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ECN report number:
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Document type:
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ECN-E--10-100
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ECN publication
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Number of pages:
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Full text:
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92
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Download PDF
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Abstract:
The main results of the PROTEST project are summarised in this report. The PROTEST project was
a pre-normative project focussing on improvement of the design and development procedure for the
mechanical components in a wind turbine: the drive train, the pitch system and the yaw system.
The current state-of-the-art is discussed and the short comings are pointed out. It is clear that the
level of analysis and the quality of modelling in the aeroelastic analysis of blades and tower is
currently at a much higher level than the integrated analysis of the mechanical components.
When trying to set guidelines for the set-up of a measurement campaign on a wind turbine prototype
to be used to validate or tune a model of one of the mechanical components, it became apparent that
it would not be possible to describe a fixed method for this. A flexible six step approach is therefore
suggested, that takes into account the limitations and uncertainties of the model that has been used.
After a general description of this approach, the results for each component are discussed, starting
with the results for the drive train, followed by the pitch system and finally the yaw system. The
design loads that are relevant for each component are summarised and additional load cases have
been defined for the drive train. The loads at the interconnection points are described and the
measurements definitions are given. Then the results of using the six step approach for are
summarised.
Finally the recommendations for the standardisation are given.
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