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Wake losses from averaged and time-resolved power measurements at full scale wind turbines
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2017 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 854, no 1, article id 012006Article in journal (Refereed) Published
Abstract [en]

This work deals with the experimental analysis of wake losses fluctuations at full-scale wind turbines. The test case is a wind farm sited on a moderately complex terrain: 4 turbines are installed, having 2 MW of rated power each. The sources of information are the time-resolved data, as collected from the OPC server, and the 10-minutes averaged SCADA data. The objective is to compare the statistical distributions of wake losses for far and middle wakes, as can be observed through the "fast" lens of time-resolved data, for certain selected test-case time series, and through the "slow" lens of SCADA data, on a much longer time basis that allow to set the standards of the mean wake losses along the wind farm. Further, time-resolved data are used for an insight into the spectral properties of wake fluctuations, highlighting the role of the wind turbine as low-pass filter. Summarizing, the wind rose, the layout of the site and the structure of the data sets at disposal allow to study middle and far wake behavior, with a "slow" and "fast" perspective.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 854, no 1, article id 012006
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-213260DOI: 10.1088/1742-6596/854/1/012006ISI: 000435276400006Scopus ID: 2-s2.0-85023631990OAI: oai:DiVA.org:kth-213260DiVA, id: diva2:1137050
Conference
Wake Conference 2017, Uppsala University's Gotland CampusVisby, Sweden, 30 May 2017 through 1 June 2017
Note

QC 20170830

Available from: 2017-08-30 Created: 2017-08-30 Last updated: 2018-07-02Bibliographically approved

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Segalini, Antonio
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Fluid PhysicsLinné Flow Center, FLOW
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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