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Keywords = anemometer recalibration

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18 pages, 3263 KiB  
Article
Performance Monitoring of Mast-Mounted Cup Anemometers Multivariate Analysis with ROOT
by Salvatore Mangano, Enrique Vega, Alejandro Martínez, Daniel Alfonso-Corcuera, Ángel Sanz-Andrés and Santiago Pindado
Sensors 2022, 22(24), 9774; https://doi.org/10.3390/s22249774 - 13 Dec 2022
Cited by 2 | Viewed by 2976
Abstract
This paper analyzes the field performance of two cup anemometers installed in Zaragoza (Spain). Data acquired over almost three years, from January 2015 to December 2017, were analyzed. The effect of the different variables (wind speed, temperature, harmonics, wind speed variations, etc.) on [...] Read more.
This paper analyzes the field performance of two cup anemometers installed in Zaragoza (Spain). Data acquired over almost three years, from January 2015 to December 2017, were analyzed. The effect of the different variables (wind speed, temperature, harmonics, wind speed variations, etc.) on two cup anemometers was studied. Data analysis was performed with ROOT, an open-source scientific software toolkit developed by CERN (Conseil Européen pour la Recherche Nucléaire) for the study of particle physics. The effects of temperature, wind speed, and wind dispersion (as a first approximation to atmospheric turbulence) on the first and third harmonics of the anemometers’ rotation speed (i.e., the anemometers’ output signature) were studied together with their evolution throughout the measurement period. The results are consistent with previous studies on the influence of velocity, turbulence, and temperature on the anemometer performance. Although more research is needed to assess the effect of the anemometer wear and tear degradation on the harmonic response of the rotor’s angular speed, the results show the impact of a recalibration on the performance of an anemometer by comparing this performance with that of a second anemometer. Full article
(This article belongs to the Section Industrial Sensors)
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22 pages, 318 KiB  
Article
Cup Anemometers’ Loss of Performance Due to Ageing Processes, and Its Effect on Annual Energy Production (AEP) Estimates
by Santiago Pindado, Antonio Barrero-Gil and Alfredo Sanz
Energies 2012, 5(5), 1664-1685; https://doi.org/10.3390/en5051664 - 23 May 2012
Cited by 26 | Viewed by 6343
Abstract
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 [...] Read more.
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. Full article
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