Details
| Original language | English |
|---|---|
| Pages (from-to) | 256-263 |
| Number of pages | 8 |
| Journal | Solar Energy |
| Volume | 182 |
| Early online date | 28 Feb 2019 |
| Publication status | Published - Apr 2019 |
| Externally published | Yes |
Abstract
This work presents the results of the first interlaboratory comparison of linearity measurements of short-circuit current versus irradiance that includes a wide variety of photovoltaic (PV) device types, from reference cells to full-size modules. The aim of this inter-comparison was to compare the methods employed and to collect new inputs useful for the revision of the standard IEC 60904-10, which deals with linearity measurements for PV devices. The procedures and facilities employed by the partners include the differential spectral responsivity, the white light response, the solar simulator method and the two-lamp method. The facilities are generically described and compared and their main sources of uncertainty are discussed. Comparison results show good agreement within declared uncertainties between all partners. A few minor exceptions under low-light conditions raise questions of possible uncertainty underestimation for these specific conditions. The overall outcome of the comparison also highlights the importance of considering correlations in the uncertainty budget, which can potentially improve the overall stated uncertainty. A critical review is made of the data analysis adopted in the standard IEC 60904-10 to calculate the linearity degree of the short-circuit current towards irradiance. The analysis review suggests a way to make results based on different methods more comparable and less prone to erroneous linearity assessment.
Keywords
- Interlaboratory comparison, Linearity measurement, Photovoltaics characterization, Uncertainty
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- General Materials Science
Sustainable Development Goals
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In: Solar Energy, Vol. 182, 04.2019, p. 256-263.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Interlaboratory comparison of short-circuit current versus irradiance linearity measurements of photovoltaic devices
AU - Bliss, Martin
AU - Betts, Tom
AU - Gottschalg, Ralph
AU - Salis, Elena
AU - Müllejans, Harald
AU - Winter, Stefan
AU - Kroeger, Ingo
AU - Bothe, Karsten
AU - Hinken, David
AU - Hohl-Ebinger, Jochen
N1 - Funding information: The research work leading to this article was carried out within the EMRP ENG55 project Towards an Energy-based Parameter for Photovoltaic Classification. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union. JRC-ESTI authors wish to thank their colleagues M. Field and D. Pavanello for their technical support with the large-area steady-state solar simulator and W. Zaaiman for first testing on the possibility of using it for the two-lamp method. Appendix A
PY - 2019/4
Y1 - 2019/4
N2 - This work presents the results of the first interlaboratory comparison of linearity measurements of short-circuit current versus irradiance that includes a wide variety of photovoltaic (PV) device types, from reference cells to full-size modules. The aim of this inter-comparison was to compare the methods employed and to collect new inputs useful for the revision of the standard IEC 60904-10, which deals with linearity measurements for PV devices. The procedures and facilities employed by the partners include the differential spectral responsivity, the white light response, the solar simulator method and the two-lamp method. The facilities are generically described and compared and their main sources of uncertainty are discussed. Comparison results show good agreement within declared uncertainties between all partners. A few minor exceptions under low-light conditions raise questions of possible uncertainty underestimation for these specific conditions. The overall outcome of the comparison also highlights the importance of considering correlations in the uncertainty budget, which can potentially improve the overall stated uncertainty. A critical review is made of the data analysis adopted in the standard IEC 60904-10 to calculate the linearity degree of the short-circuit current towards irradiance. The analysis review suggests a way to make results based on different methods more comparable and less prone to erroneous linearity assessment.
AB - This work presents the results of the first interlaboratory comparison of linearity measurements of short-circuit current versus irradiance that includes a wide variety of photovoltaic (PV) device types, from reference cells to full-size modules. The aim of this inter-comparison was to compare the methods employed and to collect new inputs useful for the revision of the standard IEC 60904-10, which deals with linearity measurements for PV devices. The procedures and facilities employed by the partners include the differential spectral responsivity, the white light response, the solar simulator method and the two-lamp method. The facilities are generically described and compared and their main sources of uncertainty are discussed. Comparison results show good agreement within declared uncertainties between all partners. A few minor exceptions under low-light conditions raise questions of possible uncertainty underestimation for these specific conditions. The overall outcome of the comparison also highlights the importance of considering correlations in the uncertainty budget, which can potentially improve the overall stated uncertainty. A critical review is made of the data analysis adopted in the standard IEC 60904-10 to calculate the linearity degree of the short-circuit current towards irradiance. The analysis review suggests a way to make results based on different methods more comparable and less prone to erroneous linearity assessment.
KW - Interlaboratory comparison
KW - Linearity measurement
KW - Photovoltaics characterization
KW - Uncertainty
UR - http://www.scopus.com/inward/record.url?scp=85062149744&partnerID=8YFLogxK
U2 - 10.1016/j.solener.2019.02.031
DO - 10.1016/j.solener.2019.02.031
M3 - Article
AN - SCOPUS:85062149744
VL - 182
SP - 256
EP - 263
JO - Solar Energy
JF - Solar Energy
SN - 0038-092X
ER -