Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation

Producción Científica

Detalhes bibliográficos
Autores: Terrados López, Cristian, González Francés, Diego, Sulca Buitrón, Kabir Paul, González Delgado, Manuel Ángel, Castro Caballero, Carmelo de, Martínez Sacristán, Óscar
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/78649
Acesso em linha:https://doi.org/10.1002/pip.70004
https://uvadoc.uva.es/handle/10324/78649
Access Level:acceso abierto
Palavra-chave:3306 Ingeniería y Tecnología Eléctricas
3306.02 Aplicaciones Eléctricas
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spelling Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical ModulationTerrados López, CristianGonzález Francés, DiegoSulca Buitrón, Kabir PaulGonzález Delgado, Manuel ÁngelCastro Caballero, Carmelo deMartínez Sacristán, Óscar3306 Ingeniería y Tecnología Eléctricas3306.02 Aplicaciones EléctricasProducción CientíficaDaylight photoluminescence (dPL) has emerged in recent years as a useful tool for inspecting solar panels, allowing for theidentification of various types of defects with good spatial resolution and is now considered a useful technique for on-site quali-fication of field-deployed PV modules. The advantage of dPL is that it does not require an electrical power source, although theswitching between two states is generally necessary to filter the ambient light. Several practical solutions have been implementedto carry out this type of measurement. In this paper, we describe the method based on the fast electrical switching using anelectronic device connected to a string or substring in such a way that allows it to be switched between two states, with differentcurrents drawn from the panels. The inspection is carried out with the string in operation, which makes it easier to monitor thecondition of the panels throughout the life of the installation. The advantage of this method is being able to switch—in a veryfast and noninvasive manner—the state of the string, between the maximum power point state and a state at (or very close to)open circuit conditions, once the electrical device has been installed. A demonstrative test has been carried out on a substring ofpanels, testing the response of two different inverters, in addition to a demonstration (using a microinverter) related to inspectinga whole string. Changes in the currents drawn from the panels, the response of the inverter, the background filtering procedure,and the quality of the images obtained are discussed in detail. dPL measurements obtained using this procedure are comparedwith previous dPL measurements and with daylight electroluminescence (dEL) measurements in order to verify the informationprovided by this new procedure.Ministerio de Ciencia e Innovación (MCIN) / Agencia Estatal de Investigación (AEI): PID2020-113533RB-C33 y PID2023-148369OB-C4Universidad de Valladolid / Banco Santander: contrato predoctoral de Kabir Paul Sulca BuitrónJunta de Castilla y León / Ministerio de Ciencia e Innovación (MICIN): Plan Complementario de Materiales Avanzados en Castilla y León (European Union NextGenerationEU/PRTR)Ministerio de Trabajo y Economía Social: contrato Programa Investigo de Carmelo de Castro CaballeroOpen access funding provided by FEDER European Funds and the Junta De Castilla y León under the Research and Innovation Strategy for Smart Specialization (RIS3) of Castilla y León 2021-2027.Wiley2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1002/pip.70004https://uvadoc.uva.es/handle/10324/78649reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/oai:uvadoc.uva.es:10324/786492026-06-13T12:44:47Z
dc.title.none.fl_str_mv Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
title Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
spellingShingle Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
Terrados López, Cristian
3306 Ingeniería y Tecnología Eléctricas
3306.02 Aplicaciones Eléctricas
title_short Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
title_full Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
title_fullStr Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
title_full_unstemmed Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
title_sort Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation
dc.creator.none.fl_str_mv Terrados López, Cristian
González Francés, Diego
Sulca Buitrón, Kabir Paul
González Delgado, Manuel Ángel
Castro Caballero, Carmelo de
Martínez Sacristán, Óscar
author Terrados López, Cristian
author_facet Terrados López, Cristian
González Francés, Diego
Sulca Buitrón, Kabir Paul
González Delgado, Manuel Ángel
Castro Caballero, Carmelo de
Martínez Sacristán, Óscar
author_role author
author2 González Francés, Diego
Sulca Buitrón, Kabir Paul
González Delgado, Manuel Ángel
Castro Caballero, Carmelo de
Martínez Sacristán, Óscar
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv 3306 Ingeniería y Tecnología Eléctricas
3306.02 Aplicaciones Eléctricas
topic 3306 Ingeniería y Tecnología Eléctricas
3306.02 Aplicaciones Eléctricas
description Producción Científica
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1002/pip.70004
https://uvadoc.uva.es/handle/10324/78649
url https://doi.org/10.1002/pip.70004
https://uvadoc.uva.es/handle/10324/78649
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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