Szczegóły publikacji
Opis bibliograficzny
Effect of voltage harmonics on dielectric losses and dissipation factor interpretation in high-voltage insulating materials / Marek FLORKOWSKI, Maciej KUNIEWSKI, Paweł MIKRUT // Electric Power Systems Research ; ISSN 0378-7796. — 2024 — vol. 226 art. no. 109973, s. 1–9. — Bibliogr. s. 9, Abstr. — Publikacja dostępna online od: 2023-11-01
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 149919 |
|---|---|
| Data dodania do BaDAP | 2023-12-14 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.epsr.2023.109973 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Electric Power Systems Research |
Abstract
Voltage harmonics are present in various forms and compositions in power systems, in an industrial environment, in transportation segment, and many other applications. This paper presents the effect of voltage harmonics on dielectric losses and dissipation factor interpretation in high voltage insulating materials. A novel element is the quantitative comparison of dielectric losses at harmonic distorted voltage, with a relation to the dissipation factors. The investigations were carried out on a broad spectrum of specimens representing various mechanisms of dielectric losses, below the level of partial discharge inception voltage. The investigation has revealed that the dissipation factors should be carefully interpreted in case of the harmonic content in the waveform, resulting in additional dielectric losses. It was identified, that even though active losses were growing at certain compositions of harmonics, the dissipation factors were attenuated, due to predominant rise of reactive power. In this way, the destructive defect of active power, thus heat dissipation, may be hidden. Interpretation and credibility assessment of the dielectric loss factor at harmonic-distorted voltages is crucial in proper research and design, since it may lead to certain misinterpretation. Since modern diagnostics and prognostics of power equipment insulation will be more and more based on AI-derived indicators and autonomous functionality, the awareness of the harmonic influence on dissipation factor is critically important.