Metrological Qualification of PD Analysers for Insulation Diagnosis of HVDC and HVAC Grids
Rattachement africain : es, se, nl, fi. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
On-site partial discharge (PD) measurements have turned out to be a very efficient technique for determining the insulation condition in high-voltage electrical grids (AIS, cable systems, GIS, HVDC converters, etc.); however, there is not any standardised procedure for determining the performances of PD measuring systems. In on-line and on-site PD measurements, high-frequency current transformers (HFCTs) are commonly used as sensors as they allow for monitoring over long distances in high-voltage installations. To ensure the required performances, a metrological qualification of the PD analysers by applying an evaluation procedure is necessary. A novel evaluation procedure was established to specify the quantities to be measured (electrical charge and PD repetition rate) and to describe the evaluation tests considering the measured influence parameters: noise, charge amplitude, pulse width and time interval between consecutive pulses. This procedure was applied to different types of PD analysers used for off-line measurements, sporadic on-line measurements and continuous PD monitoring. The procedure was validated in a round-robin test involving two metrological institutes (RISE from Sweden and FFII from Spain) and three universities (TUDelft from the Netherlands, TAU from Finland and UPM from Spain). With this round-robin test, the effectiveness of the proposed qualification procedure for discriminating between efficient and inappropriate PD analysers was demonstrated. Furthermore, it was shown that the PD charge quantity can be properly determined for on-line measurements and continuous monitoring by integrating the pulse signals acquired with HFCT sensors. In this case, these sensors must have a flat frequency spectrum in the range between several tens of kHz and at least two tens of MHz, where the frequency pulse content is more significant. The proposed qualification procedure can be useful for improving the future versions of the technical specification TS IEC 62478 and the standard IEC 60270.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Metrological Qualification of PD Analysers for Insulation Diagnosis of HVDC and HVAC Grids
- Date Crossref
- 11/07/2023
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Fundación para el Fomento de la Innovación Industrial pays non établi dans la noticeOrganisation à but non lucratif
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Foundation for the Research Development and Application of Composite Materials pays non établi dans la noticeStructure de recherche
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Universidad Politécnica de Madrid pays non établi dans la noticeUniversité ou école supérieure
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RISE Research Institutes of Sweden pays non établi dans la noticeInstitution
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Delft University of Technology pays non établi dans la noticeUniversité ou école supérieure
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Tampere University Department of Electrical Engineering pays non établi dans la noticeUniversité ou école supérieure
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Universitat Politècnica de València pays non établi dans la noticeUniversité ou école supérieure
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School of Industrial Design and Engineering (ETSIDI) Department of Electrical and Electronic Engineering pays non établi dans la noticeUniversité ou école supérieure
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Instituto de Tecnología Eléctrica pays non établi dans la noticeStructure de recherche
Fundación para el Fomento de la Innovación Industrial, Foundation for the Research Development and Application of Composite Materials et Universidad Politécnica de Madrid, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.