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Interharmonic currents from a Type-IV wind energy conversion system
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Number of Authors: 2
2017 (English)In: Electric power systems research, ISSN 0378-7796, E-ISSN 1873-2046, Vol. 143, 357-364 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents, for the first time, the verification of the classic model for the origin of interharmonic emission from a frequency converter, for a Type-IV wind turbine by using long-term measurements. Interharmonic variations in magnitude and in frequency are due to the difference between the generator-side and grid-side frequency of the full-power converter. The model verification consists of three parts: correlation between frequencies; relation between magnitude of interharmonics and active-power production, and relation between magnitudes of different interharmonics. The measurements are in agreement with the model predictions. The paper also introduces a novel graphical correlation method to extract information on interharmonics from long-term measurement series.

Place, publisher, year, edition, pages
2017. Vol. 143, 357-364 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-59994DOI: 10.1016/j.epsr.2016.09.010ScopusID: 2-s2.0-84992694544OAI: oai:DiVA.org:ltu-59994DiVA: diva2:1040452
Note

Validerad; 2016; Nivå 2; 2016-10-27 (andbra)

Available from: 2016-10-27 Created: 2016-10-27 Last updated: 2016-11-11Bibliographically approved

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