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Interharmonics and light flicker
VTT Technical Research Centre of Finland, Espoo.
Danish Energy Association.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-4074-9529
2015 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

High levels of odd triplen harmonics and flicker ofCompact Fluorescent Lamps (CFL) have been observedin networks. This paper addresses the possibility thatthese issues are related by the following phenomena.Inverter driven loads such as heat pumps generate oddharmonics that can be modulated by fluctuations in thoseloads, such as oscillating torque. Because the zerosequence impedance of the low voltage distributionnetwork is much higher than for the other symmetriccomponents of a three phase system, the impacts of oddtriplen harmonics currents on the voltage are strongerthan for the other harmonic currents. Modulatingfluctuations may also come from the power network. Thismodulation causes interharmonics near odd harmonics,which cause voltage peak value fluctuations. In typicalCompact Fluorescent Lamps (CFL) the link capacitanceis dimensioned so small that the luminance varies withthe voltage peak value fluctuations. Some related gaps inElectro Magnetic Compatibility standards are pointedout.

Place, publisher, year, edition, pages
2015.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-28645Local ID: 283c780d-4946-4579-b839-f5b383cadc39OAI: oai:DiVA.org:ltu-28645DiVA: diva2:1001847
Conference
International Conference and Exhibition on Electricity Distribution : 15/06/2015 - 18/06/2015
Note
Godkänd; 2015; 20150625 (matbol)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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