Published December 4, 2016
| Version v1
Project deliverable
Open
Calibration campaigns for pyrheliometer and pyranometer
Creators
- 1. DLR
- 2. CIEMAT
- 3. CNRS
Description
Accurate measurements of solar irradiance are crucial for the planning, tests and operation of solar power plants. The measurement uncertainty caused by the calibration is the most relevant contribution to the overall uncertainty of well-maintained radiometers. Uncertainties of field pyranometers and pyrheliometers can be significantly reduced by calibrations through WRR (World Radiometric Reference) traceable reference sensors compared to indoor calibrations.
This report presents the results of the three campaigns, in which new responsivities were derived for
80 field sensors. The presentation of the results includes:
- Comparison of newly acquired responsivities with manufacturer responsivity
- Comparison of repeatedly calibrated sensors at PSA during varies calibration campaigns
- Solar angle dependency of pyranometers
- Reliability of manufacturer responsivities
- Influence of an automated cloud filtering system on basis of whole sky imagers (cloud cameras)
Files
SFERA-II_D11.3_PyrhelCal_161116.pdf
Files
(2.8 MB)
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