Analysis of calibration results from cup and propeller anemometers. Influence on wind turbine Annual Energy Production (AEP) calculations

Authors

  • Santiago Pindado,

    Corresponding author
    1. Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
    • Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Madrid, Spain
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  • Enrique Vega,

    1. Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
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  • Alejandro Martínez,

    1. Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
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  • Encarnación Meseguer,

    1. Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
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  • Sebastián Franchini,

    1. Universidad Politécnica de Madrid, ETSI Aeronáuticos, Instituto Universitario de Microgravedad ‘Ignacio Da Riva’ (IDR/UPM), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain
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  • Imanol Pérez Sarasola

    1. Wind Development Fund Management B.V., Claude Debussylaan 44, 1082 MD, Amsterdam
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Abstract

The calibration coefficients of several models of cup and propeller anemometers were analysed. The analysis was based on a series of laboratory calibrations between January 2003 and August 2007. Mean and standard deviation values of calibration coefficients from the anemometers studied were included. Two calibration procedures were used and compared. In the first, recommended by the Measuring Network of Wind Energy Institutes (MEASNET), 13 measurement points were taken over a wind speed range of 4 to 16  m  s−1. In the second procedure, 9 measurement points were taken over a wider speed range of 4 to 23  m  s−1. Results indicated no significant differences between the two calibration procedures applied to the same anemometer in terms of measured wind speed and wind turbines' Annual Energy Production (AEP). The influence of the cup anemometers' design on the calibration coefficients was also analysed. The results revealed that the slope of the calibration curve, if based on the rotation frequency and not the anemometer's output frequency, seemed to depend on the cup center rotation radius. Copyright © 2010 John Wiley & Sons, Ltd.

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