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ECN publication
EWTS-II benchmark on data collection and parameter estimation for safety and reliability analysis of wind turbines
Published by: Publication date:
ECN 1-10-1997
ECN report number: Document type:
ECN-RX--97-057 Article (scientific)
Number of pages:

Published in: Paper presented at EWEC'97 (European Wind Energy Conference), 5-9 October 1997, Dublin (), , , Vol., p.-.

This paper summarizes the results of a small benchmark exercise that wasconducted as part of the EU-sponsored project European Wind Turbine Standards (EWTS-II). One of the objectives of the subproject 'Quantification of Failure Probabilities' was to derive guidelines for the collection of data and for the estimation of parameters to be used for quantitative safety and reliability analyses of wind turbines. The preliminary guidelines set out were finalized on the basis of the benchmark results. The benchmark case consisted of a model of a hypothetical design, as defined and used in a previous EWTS-1 subproject 'Assessment of Wind Turbine Safety: Recommended Practices'. The model includes only one initiating event potentially leading to (catastrophic) overspeed of the wind turbine. The accident sequences were modelled with 3 event trees, 4 fault trees, and about 30 component failure modes (so-called basic events). 8 refs.

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