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http://dx.doi.org/10.4313/JKEM.2004.17.12.1289

Consideration of Electrical Properties in Field-aged Photovoltaic Module  

Kang, Gi-Hwan (한국에너지기술연구원 태양광시스템연구센터)
Yu, Gwon-Jong (한국에너지기술연구원 태양광시스템연구센터)
Ahn, HyungKeun (건국대학교 공과대학 전기공학과)
Han, Deuk-Young (건국대학교 공과대학 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.12, 2004 , pp. 1289-1295 More about this Journal
Abstract
In this paper, degradation in field-aged PV modules including degradation of interconnect, discoloration of encapsulant and hot spot have been observed and analyzed. From the results, photovoltaic module installed for 6 years shows around 16 % drop of electrical properties due to the interconnect degradation and PV module passed 18 years has been found to drop of around 20 % mainly by the encapsulant discoloration. Furthermore the difference between low and high temperature of PV array at hot spot goes up to 3$0^{\circ}C$ and it leads to interconnect degradation. On the other hands, the temperature difference was observed to be around 15$^{\circ}C$ at the encapsulant discoloration spot of PV array.
Keywords
Photovoltaic module; Life time; Hot spot; Discoloration; Degradation;
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  • Reference
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