Assessment of Partial Discharge Phenomenon in AC and Fast-rising Square Voltage Using Optical Detection Technique in Needle-Plane Configuration With Pressboard in Mineral Oil
In: 2022 IEEE 21st International Conference on Dielectric Liquids (ICDL) ; https://hal.science/hal-03803771 ; 2022 IEEE 21st International Conference on Dielectric Liquids (ICDL), May 2022, Sevilla, Spain. pp.1-4, ⟨10.1109/ICDL49583.2022.9830959⟩, 2022
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International audience ; The benefits offered by silicon carbide (SiC) switches in terms of repetition rate (> 100 kHz) and switching speed (up to 100 kV/µs) make them a popular choice for the converters of future grid projects. However, the impact of the fast repetitive pulses generated by these devices on the insulator discharge mechanism is yet unknown. This could be a significant obstacle in the future development of power system applications. This paper investigates the partial discharge (PD) phenomenon for pressboard/mineral oil insulation system under unipolar square voltage (USV) waveforms (dV/dt > 50 kV/µs), using a photomultiplier tube (PMT), with a high divergent field. As compared to AC, the partial discharge inception voltage (PDIV) is found to be lower under USV for tested specimens. The phase resolved partial discharge (PRPD) pattern highlights the difference in PD mechanism between AC and USV waveforms. Also, the number of PDs (NPDs) and average charge amplitude (Qavg) obtained under AC and USV waveforms are compared and discussed.
| Titel: |
Assessment of Partial Discharge Phenomenon in AC and Fast-rising Square Voltage Using Optical Detection Technique in Needle-Plane Configuration With Pressboard in Mineral Oil
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| Autor/in / Beteiligte Person: | Anand, Somya ; Vagnon, Eric ; Guillet, Martin ; Buttay, Cyril ; SuperGrid Institute, SAS ; Ampère, Département Energie Electrique (EE) ; (AMPERE), Ampère ; École Centrale de Lyon (ECL) ; Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon) ; Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL) ; Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
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| Zeitschrift: | 2022 IEEE 21st International Conference on Dielectric Liquids (ICDL) ; https://hal.science/hal-03803771 ; 2022 IEEE 21st International Conference on Dielectric Liquids (ICDL), May 2022, Sevilla, Spain. pp.1-4, ⟨10.1109/ICDL49583.2022.9830959⟩, 2022 |
| Veröffentlichung: | HAL CCSD ; IEEE, 2022 |
| Medientyp: | Konferenz |
| DOI: | 10.1109/ICDL49583.2022.9830959 |
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