Cup Anemometers’ Loss of Performance Due to Ageing Processes, and Its Effect on Annual Energy Production (AEP) Estimates

Energies

Santiago Pindado²  Antonio Barrero-Gil¹ 

[1] Aerospace Propulsion and Fluid Mechanics Department, ETSIA, Universidad Politécnica de Madrid (Polytechnic University of Madrid), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain; E-Mail:;IDR/UPM, ETSIA, Universidad Politécnica de Madrid (Polytechnic University of Madrid), Pza. del Cardenal Cisneros 3, Madrid 28040, Spain

关键词: anemometer calibration;    cup anemometer;    MEASNET;    Annual Energy Production (AEP);    recalibration schedule;    anemometer wear and tear;    anemometer loss of performance;   

DOI  :  10.3390/en5051664

来源: mdpi

【 摘 要 】

The deviation of calibration coefficients from five cup anemometer models over time was analyzed. The analysis was based on a series of laboratory calibrations between January 2001 and August 2010. The analysis was performed on two different groups of anemometers: (1) anemometers not used for any industrial purpose (that is, just stored); and (2) anemometers used in different industrial applications (mainly in the field—or outside—applications like wind farms). Results indicate a loss of performance of the studied anemometers over time. In the case of the unused anemometers the degradation shows a clear pattern. In the case of the anemometers used in the field, the data analyzed also suggest a loss of performance, yet the degradation does not show a clear trend. A recalibration schedule is proposed based on the observed performances variations.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.