Observed degradation in photovoltaic plants affected by hot-spots

García, Miguel and Marroyo, Luis and Lorenzo Pigueiras, Eduardo and Marcos, Javier and Pérez, Miguel (2013). Observed degradation in photovoltaic plants affected by hot-spots. "Progress in Photovoltaics: Research and Applications" ; pp. 1-10. ISSN 1062-7995. https://doi.org/10.1002/pip.2393.

Description

Title: Observed degradation in photovoltaic plants affected by hot-spots
Author/s:
  • García, Miguel
  • Marroyo, Luis
  • Lorenzo Pigueiras, Eduardo
  • Marcos, Javier
  • Pérez, Miguel
Item Type: Article
Título de Revista/Publicación: Progress in Photovoltaics: Research and Applications
Date: 2013
ISSN: 1062-7995
Subjects:
Freetext Keywords: Hot-spots; hot cells; localized heating; reliability; quality control; commercial PV plants
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A number of findings have shown that the test procedures currently available to determine the reliability and durability of photovoltaic (PV) modules are insufficient to detect certain problems. To improve these procedures, ongoing research into the actual performance of the modules in the field is required. However, scientific literature contains but few references to field studies of defective modules. This article studies two different localized heating phenomena affecting the PV modules of two large-scale PV plants in Spain. The first problem relates to weak solder joints whilst the second is due to microcracks on the module cells. For both cases, the cause is identified, and consideration is given with regard to the effect on performance, the potential deterioration over time, and a way to detect the problems identified. The findings contained in this paper will prove to be of considerable interest to maintenance personnel at large-scale PV plants and also to those responsible for setting module quality standards and specifications, and even the PV module manufacturers themselves.

More information

Item ID: 31179
DC Identifier: http://oa.upm.es/31179/
OAI Identifier: oai:oa.upm.es:31179
DOI: 10.1002/pip.2393
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pip.2393/citedby
Deposited by: Memoria Investigacion
Deposited on: 13 Oct 2014 16:00
Last Modified: 12 May 2015 18:08
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