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Abstract
An acceleration model based on the Peck equation was applied to power performance of crystalline silicon cell modules as a function of time and of temperature and humidity, the two main environmental stress factors that promote potential-induced degradation. This model was derived from module power degradation data obtained semi-continuously and statistically by in-situ dark current-voltage measurements in an environmental chamber. The modeling enables prediction of degradation rates and times as functions of temperature and humidity. Power degradation could be modeled linearly as a function of time to the second power; additionally, we found that coulombs transferred from the active cell circuit to ground during the stress test is approximately linear with time. Therefore, the power loss could be linearized as a function of coulombs squared. With this result, we observed that when the module face was completely grounded with a condensed phase conductor, leakage current exceeded the anticipated corresponding degradation rate relative to the other tests performed in damp heat.
Originalsprog | Engelsk |
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Titel | Proceedings of the 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) |
Antal sider | 5 |
Forlag | IEEE Press |
Publikationsdato | 2015 |
Sider | 1-5 |
ISBN (Elektronisk) | 978-1-4799-7944-8 |
DOI | |
Status | Udgivet - 2015 |
Begivenhed | 42nd IEEE Photovoltaic Specialists Conference - New Orleans, LA, USA Varighed: 14 jun. 2015 → 19 jun. 2015 Konferencens nummer: 42 |
Konference
Konference | 42nd IEEE Photovoltaic Specialists Conference |
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Nummer | 42 |
Land/Område | USA |
By | New Orleans, LA |
Periode | 14/06/2015 → 19/06/2015 |
Navn | I E E E Photovoltaic Specialists Conference. Conference Record |
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Vol/bind | 42 |
ISSN | 0160-8371 |
Fingeraftryk
Dyk ned i forskningsemnerne om 'Accelerated Testing and Modeling of Potential-Induced Degradation as a Function of Temperature and Relative Humidity'. Sammen danner de et unikt fingeraftryk.Projekter
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SPVSYS: Smart Photovoltaic Systems
Teodorescu, R., Séra, D., Kerekes, T., Borup, U., Spataru, S. V. & Bogdan, C.
01/01/2011 → 31/07/2015
Projekter: Projekt › Forskning