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Real-time rail electrification systems monitoring: a review of technologies

2025-10-28Artigo científico Acesso aberto
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authorProfile.emailbiblioteca@isel.pt
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
dc.contributor.authorSainz-Aja, Jose Adolfo
dc.contributor.authorPombo, João
dc.contributor.authorBrant, Jordan
dc.contributor.authorAntunes, Pedro
dc.contributor.authorRebelo, José M.
dc.contributor.authorSantos, José
dc.contributor.authorFerreño, Diego
dc.date.accessioned2026-01-08T14:30:29Z
dc.date.available2026-01-08T14:30:29Z
dc.date.issued2025-10-28
dc.descriptionThis research was funded by the RSSB (Rail Safety and Standards Board) via the project RSSB/COF-UOH-58. The technical support of RSSB to this work is greatly appreciated. The authors also acknowledge the support from FCT, through IDMEC, under LAETA, project UIDB/50022/2020.
dc.description.abstractMost electrified railway networks are powered through a pantograph–overhead contact line (OCL) interface to ensure safe and reliable operation. The OCL is one of the most vulnerable components of the train traction power system as it is subjected to multiple impacts from the pantographs and to unpredictable environmental conditions. Wear, mounting imperfections, contact incidents, weather conditions, and inadequate maintenance lead to increased degradation of the pantograph–OCL current collection performance, causing degradation on contacting elements and assets failure. Incidents involving the pantograph–OCL system are significant sources of traffic disruption and train delays, e.g., Network Rail statistics show that, on average, delays due to OCL failures are 2500 h per year. In recent years, maintenance strategies have evolved significantly with improvements in technology and the increased interest in using real-time and historical data in decision support. This has led to an expansion in sensing systems for structures, vehicles, and machinery. The railway industry is currently investing in condition monitoring (CM) technologies in order to achieve lower failure rates and increase the availability, reliability, and safety of the railway service. This work presents a comprehensive review of the current CM systems for the pantograph–OCL, including their advantages and disadvantages, and outlines future trends in this area.eng
dc.identifier.citationSainz-Aja, J. A., Pombo, J., Brant, J., Antunes, P., Rebelo, J. M., Santos, J., & Ferreño, D. (2025). Real-time rail electrification systems monitoring: a review of technologies. Sensors, 25(21), 6625. https://doi.org/10.3390/s25216625
dc.identifier.doi10.3390/s25216625
dc.identifier.eissn1424-8220
dc.identifier.urihttp://hdl.handle.net/10400.21/22459
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI AG
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationRSSB/COF-UOH-58
dc.relation.hasversionhttps://www.mdpi.com/1424-8220/25/21/6625
dc.relation.ispartofSensors
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPantograph-overhead contact line interface
dc.subjectCondition monitoring
dc.subjectRailway maintenance strategies
dc.subjectDecision support
dc.subjectService safety and reliability
dc.subjectRSSB/COF-UOH-58
dc.subjectUIDB/50022/2020
dc.titleReal-time rail electrification systems monitoring: a review of technologieseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.citation.endPage19
oaire.citation.issue21
oaire.citation.startPage1
oaire.citation.titleSensors
oaire.citation.volume25
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43
person.familyNameSainz-Aja
person.familyNamePombo
person.familyNameAntunes
person.familyNameFerreño
person.givenNameJose Adolfo
person.givenNameJoão
person.givenNamePedro
person.givenNameDiego
person.identifier2438479
person.identifier.ciencia-id3E1A-F8C1-9B8D
person.identifier.ciencia-id4613-B25C-A225
person.identifier.orcid0000-0003-3187-4790
person.identifier.orcid0000-0002-5877-1989
person.identifier.orcid0000-0001-6910-8456
person.identifier.orcid0000-0003-3533-1881
person.identifier.ridB-9140-2013
person.identifier.ridAAE-3662-2019
person.identifier.scopus-author-id57190956707
person.identifier.scopus-author-id16022941000
person.identifier.scopus-author-id55108715000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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