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Performance Monitoring of Mast-Mounted Cup Anemometers Multivariate Analysis with ROOT.

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This study analyzed cup anemometer performance in Zaragoza over three years. Recalibration significantly impacts anemometer accuracy, highlighting the need for ongoing performance assessment.

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Area of Science:

  • Meteorology and Atmospheric Science
  • Instrumentational Science
  • Renewable Energy Systems

Background:

  • Cup anemometers are crucial for wind resource assessment.
  • Understanding anemometer performance variations is vital for accurate wind energy forecasting.
  • Field data analysis provides insights into real-world instrument behavior.

Purpose of the Study:

  • To analyze the field performance of two cup anemometers over a three-year period.
  • To investigate the influence of environmental variables on anemometer output.
  • To assess the impact of recalibration on anemometer accuracy.

Main Methods:

  • Collected and analyzed three years of wind speed and temperature data from two cup anemometers.
  • Utilized ROOT, an open-source scientific software toolkit, for data analysis.
  • Examined the effects of wind speed, temperature, and turbulence on anemometer harmonic responses.

Main Results:

  • Observed consistent effects of velocity, turbulence, and temperature on anemometer performance, aligning with prior research.
  • Demonstrated the significant impact of recalibration on an anemometer's performance.
  • Identified the influence of environmental factors on the harmonic signature of anemometer rotation speed.

Conclusions:

  • Anemometer performance is demonstrably affected by environmental conditions and operational status.
  • Recalibration is a critical factor in maintaining anemometer accuracy for reliable wind data.
  • Further research is recommended to quantify the effects of anemometer wear and tear on performance.