Radio-Frequency Localization of Multiple Partial Discharges Sources with Two Receivers

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Show simple item record Robles Muñoz, Guillermo Fresno de Marcos, José Manuel Martínez Tarifa, Juan Manuel 2019-02-11T11:53:38Z 2019-02-11T11:53:38Z 2018-05-03
dc.identifier.bibliographicCitation Robles, G. Fresno, J.M., Martínez-Tarifa, J.M. (2018). Radio-Frequency Localization of Multiple Partial Discharges Sources with Two Receivers. Sensors, 18 (5), 1410.
dc.identifier.issn 1424-8220
dc.description.abstract Spatial localization of emitting sources is especially interesting in different fields of application. The focus of an earthquake, the determination of cracks in solid structures, or the position of bones inside a body are some examples of the use of multilateration techniques applied to acoustic and vibratory signals. Radar, GPS and wireless sensors networks location are based on radiofrequency emissions and the techniques are the same as in the case of acoustic emissions. This paper is focused on the determination of the position of sources of partial discharges in electrical insulation for maintenance based on the condition of the electrical equipment. The use of this phenomenon is a mere example of the capabilities of the proposed method but it is very representative because the emission can be electromagnetic in the VHF and UHF ranges or acoustic. This paper presents a method to locate more than one source in space with only two receivers, one of them in a fixed position and the other describing a circumference around the first one. The signals arriving from the different sources to the antennas are first separated using a classification technique based on their spectral components. Then, the individualized time differences of arrival (TDOA) from the sources collected at different angles describe a function, angle versus TDOA, that has all the geometric information needed to locate the source. The paper will show how to derive these functions for any source analytically with the position of the source as unknown parameters. Then, it will be demonstrated that it is possible to fit the curve with experimental measurements of the TDOA to obtain the parameters of the position of each source. Finally, the technique is extended to the localization of the emitter in three dimensions.
dc.description.sponsorship The work done in this paper has been funded by the Spanish Government (MINECO) and the European Regional Development Fund (ERDF) under contract DPI2015-66478-C2-1-R (MINECO/FEDER, UE).
dc.format.extent 18
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2018 by the authors; licensee MDPI, Basel, Switzerland.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Localization
dc.subject.other Signal characterization
dc.subject.other Partial discharges
dc.subject.other Radio-frequency detection
dc.subject.other Condition monitoring
dc.subject.other Antennas
dc.subject.other Acoustic detection
dc.title Radio-Frequency Localization of Multiple Partial Discharges Sources with Two Receivers
dc.type article
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2015-66478-C2-1-R
dc.type.version publishedVersion
dc.identifier.publicationissue 5
dc.identifier.publicationtitle Sensors
dc.identifier.publicationvolume 18
dc.identifier.uxxi AR/0000021928
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