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Uncertainty Analysis in the Power Rating Measurement of Solar Cell as per IEC 61853-1
R. Singh, B. Bora, O.S. Sastry, S. Rai, M. Bangar, R. Dahiya, R. Siddiqui
Temperature Coefficient, IEC 61853, Uncertainty Analysis, Test Conditions, Spectral Distribution
Operation, Performance, Reliability and Sustainability of Photovoltaics
Subtopic: PV Cells and Modules
Event: 32nd European Photovoltaic Solar Energy Conference and Exhibition
Session: 5DO.11.5
1720 - 1723
ISBN: 3-936338-41-8
Paper DOI: 10.4229/EUPVSEC20162016-5DO.11.5
0,00 EUR
Document(s): paper


An estimation of source of uncertainty in the measurements of power matrix values using indoor test conditions as per IEC 61853-1 is performed. During the experiment it is found that the spectrum of light source is changing with irradiation. In this paper an uncertainty analysis of the measurements have been carried while estimating the power output for 23 test conditions as per the standard. During this study it is observed that the power temperature coefficient, MMF of solar cell does not remain constant and is dependent on irradiation level. Therefore use of one power temperature coefficient (@ STC) for all irradiation levels mentioned in the standard leads to significant error in the energy estimations. It needs to be estimated MMF for each irradiance level for different PV technologies for indoor testing also. The estimation of power by using translation method as per IEC 60891 also leads to increase in uncertainty.