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Variations of supraharmonic emissions in low voltage networks
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0002-4004-0352
University of Cordoba, Spain.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0001-6074-8633
2019 (engelsk)Inngår i: CIRED 2019 Conference, AIM , 2019, artikkel-id 5Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper describes and presents measurements of supraharmonic emission in low voltage grids in Europe, North America and Asia. One-minute average values for 2 kHz grouped components are given and a total supraharmonic distortion (TSHD) value is calculated for the frequency band 2 to 150 kHz. Statistical analyses are performed, investigating the site and time dependency of supraharmonic voltages. Results show that the average values are, with a 90% confidence within an interval of 0.09-0.56% of fundamental (FND) but higher values can occur. Based on analyses of these measurements some early conclusions can be drawn:

Supraharmonic emission are present in low voltage grids

The magnitudes and frequencies vary between sites and over time

There is a daily pattern but also some randomness when supraharmonics appear.

sted, utgiver, år, opplag, sider
AIM , 2019. artikkel-id 5
Serie
CIRED Conference Proceedings, ISSN 2032-9644
HSV kategori
Forskningsprogram
Elkraftteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-77979DOI: 10.34890/234OAI: oai:DiVA.org:ltu-77979DiVA, id: diva2:1412467
Konferanse
25th International Conference and Exhibition on Electricity Distribution (CIRED 2019), 3-6 June, 2019, Madrid, Spain
Merknad

ISBN för värdpublikation: 978-2-9602415-0-1

Tilgjengelig fra: 2020-03-06 Laget: 2020-03-06 Sist oppdatert: 2023-09-05bibliografisk kontrollert

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