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Title:
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Control design based on aero-hydro-servo-elastic linear models from TURBU (ECN)
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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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1-6-2007
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ECN report number:
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Document type:
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ECN-M--07-054
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Conference Paper
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Number of pages:
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Full text:
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27
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Download PDF
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Presented at: European Wind Energy Conference 2007, Milan, Italy, 7-10 mei 2007.
Abstract:
The ECN computer code TURBU generates elaborate linearised models for 3-bladed wind turbines. These models include the relevant features for control design and aeroealastic stability analysis; they are very well workable because of modalaly reduced blade tower models. Control loops for blade and tower load reduction were designed for a typical multi-MW wind turbine. A TURBU model was used for analytic examination of the 'closed loop predictions' appeared valid when the control loops were evaluated in non-linear time domain simulation. These simulations showed significant load reduction and good closed loop stability. The fatigue loads in full load operation were reduced by 10% to 30% for the rotor blades and 4% to 6% for the tower.
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