Analyzing the temperature and frequency dependence of eddy currents in transformer windings

Eddy current effects, which include skin and proximity effects, are usually associated only with frequency, but they are also affected by temperature. This paper analyzes the effect of both, temperature and frequency on skin and proximity effects in transformer windings. When analyzing transformer w...

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Detalles Bibliográficos
Autores: Badri Barberán, José Antonio|||0000-0003-0059-8906, Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389, García Espinosa, Antonio|||0000-0003-0348-5210, Trujillo Coll, Santi, Marzàbal, Albert
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/411749
Acceso en línea:https://hdl.handle.net/2117/411749
https://dx.doi.org/10.1016/j.ijepes.2024.110053
Access Level:acceso abierto
Palabra clave:Electric transformers
Electric current converters
Transformer
Winding
Inductor
Skin effect
Proximity effect
Eddy currents
Finite elements method
High-frequency
Temperature
Ac resistance
Ac inductance
Transformadors elèctrics
Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
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repository_id_str
spelling Analyzing the temperature and frequency dependence of eddy currents in transformer windingsBadri Barberán, José Antonio|||0000-0003-0059-8906Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389García Espinosa, Antonio|||0000-0003-0348-5210Trujillo Coll, SantiMarzàbal, AlbertElectric transformersElectric current convertersTransformerWindingInductorSkin effectProximity effectEddy currentsFinite elements methodHigh-frequencyTemperatureAc resistanceAc inductanceTransformadors elèctricsConvertidors de corrent elèctricÀrees temàtiques de la UPC::Enginyeria elèctricaEddy current effects, which include skin and proximity effects, are usually associated only with frequency, but they are also affected by temperature. This paper analyzes the effect of both, temperature and frequency on skin and proximity effects in transformer windings. When analyzing transformer windings, despite the existence of powerful finite element analysis (FEA) modules, they return the total contribution of eddy current effects and do not separate the contributions of skin and proximity effects. This paper proposes an analytical method to determine the contribution of both effects to the AC winding resistance and leakage inductance based on the orthogonality of the skin and proximity effects. This method is based on the exact solution of the skin effect for an isolated round conductor combined with Dowell's solution of the proximity effect. Presented experimental results and FEA simulations based on a single-phase transformer have determined the accuracy of the proposed method, which allows accurate prediction of the temperature and frequency behavior of the winding resistance and leakage inductance.Peer ReviewedElsevier20242024-08-0120242024-07-16journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/411749https://dx.doi.org/10.1016/j.ijepes.2024.110053reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4117492026-05-27T15:37:01Z
dc.title.none.fl_str_mv Analyzing the temperature and frequency dependence of eddy currents in transformer windings
title Analyzing the temperature and frequency dependence of eddy currents in transformer windings
spellingShingle Analyzing the temperature and frequency dependence of eddy currents in transformer windings
Badri Barberán, José Antonio|||0000-0003-0059-8906
Electric transformers
Electric current converters
Transformer
Winding
Inductor
Skin effect
Proximity effect
Eddy currents
Finite elements method
High-frequency
Temperature
Ac resistance
Ac inductance
Transformadors elèctrics
Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
title_short Analyzing the temperature and frequency dependence of eddy currents in transformer windings
title_full Analyzing the temperature and frequency dependence of eddy currents in transformer windings
title_fullStr Analyzing the temperature and frequency dependence of eddy currents in transformer windings
title_full_unstemmed Analyzing the temperature and frequency dependence of eddy currents in transformer windings
title_sort Analyzing the temperature and frequency dependence of eddy currents in transformer windings
dc.creator.none.fl_str_mv Badri Barberán, José Antonio|||0000-0003-0059-8906
Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
García Espinosa, Antonio|||0000-0003-0348-5210
Trujillo Coll, Santi
Marzàbal, Albert
author Badri Barberán, José Antonio|||0000-0003-0059-8906
author_facet Badri Barberán, José Antonio|||0000-0003-0059-8906
Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
García Espinosa, Antonio|||0000-0003-0348-5210
Trujillo Coll, Santi
Marzàbal, Albert
author_role author
author2 Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
García Espinosa, Antonio|||0000-0003-0348-5210
Trujillo Coll, Santi
Marzàbal, Albert
author2_role author
author
author
author
dc.subject.none.fl_str_mv Electric transformers
Electric current converters
Transformer
Winding
Inductor
Skin effect
Proximity effect
Eddy currents
Finite elements method
High-frequency
Temperature
Ac resistance
Ac inductance
Transformadors elèctrics
Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
topic Electric transformers
Electric current converters
Transformer
Winding
Inductor
Skin effect
Proximity effect
Eddy currents
Finite elements method
High-frequency
Temperature
Ac resistance
Ac inductance
Transformadors elèctrics
Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
description Eddy current effects, which include skin and proximity effects, are usually associated only with frequency, but they are also affected by temperature. This paper analyzes the effect of both, temperature and frequency on skin and proximity effects in transformer windings. When analyzing transformer windings, despite the existence of powerful finite element analysis (FEA) modules, they return the total contribution of eddy current effects and do not separate the contributions of skin and proximity effects. This paper proposes an analytical method to determine the contribution of both effects to the AC winding resistance and leakage inductance based on the orthogonality of the skin and proximity effects. This method is based on the exact solution of the skin effect for an isolated round conductor combined with Dowell's solution of the proximity effect. Presented experimental results and FEA simulations based on a single-phase transformer have determined the accuracy of the proposed method, which allows accurate prediction of the temperature and frequency behavior of the winding resistance and leakage inductance.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-08-01
2024
2024-07-16
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/411749
https://dx.doi.org/10.1016/j.ijepes.2024.110053
url https://hdl.handle.net/2117/411749
https://dx.doi.org/10.1016/j.ijepes.2024.110053
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405176143544320
score 15.811543

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