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Title:
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Validation of design criteria for small wind turbines
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Author(s):
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Published by:
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Publication date:
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ECN
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1996
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ECN report number:
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Document type:
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ECN-RX--96-031
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Other
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Number of pages:
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Full text:
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6
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Download PDF
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Abstract:
An experimental validation of the simplified load calculation method forsmall wind turbines given in the IEC 1400-2 standard has been carried out in
an international JOULE II project. The objective was to validate the method,
to formulate recommendations for refinement of the method, and to formulate
guidelines for the designers in the application of the standard. Results and
specific experiences encountered with the applied method are presented.
General findings are that the existence of a simplified method is very
practical for the designer but that the applicability of the present method
still is too limited in view of the large variety of small wind turbine
concepts. For some of the load cases the present formulation is inadequate.
Improvement and refinement of the standard is necessary, and the project
gives specific recommendations. Furthermore, the experience in the project
has shown that adequate measurement of power curve is necessary to determine
essential design values to be used in the load calculations. Tests for
checking dynamic behaviour of the machine seem to be vital in order to
evaluate appropriateness of the load assumptions. 3 tabs., 3 refs.
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