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On-line version ISSN 1850-468X


LASSIG, Jorge L.; PALESE, Claudia  and  APCARIAN, Anabel. Extreme winds in the province of Neuquén. Meteorologica [online]. 2011, vol.36, n.2, pp.83-93. ISSN 1850-468X.

The objective of this work is to calculate the extreme values of wind speed with different models proposed in international standards that are utilized so much in the design of wind farms as in civil structures. The employed models are described and the calculations are carried out in 5 places of the Neuquén Province, utilizing data of winds measured whose series have between 8 months and 5 years of length. The extreme values are obtained with a return period of 50 years and they correspond to the extreme of the 10-minute and 3-second average wind speed. The found values are analysed and it are compared among them, with measurements and with values proposed in the standard of security of civil structures of Argentina. The extremes values that were estimated according to the European Wind Turbine Standards II do not underestimate the available measurements and the smaller differences observed with the results of the other models correspond to the longest series. The shape parameter of the Weibull distribution and the sample length (time period) would be the most important factors in the estimations of the extremes values of wind speed.

Keywords : Wind turbines; Reference wind windspeed.

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