From Measurements to Site Approval: A New and More Accurate Approach for Site Suitability Analysis

Henrik Stensgaard Toft, Lasse Svenningsen, John Dalsgaard Sørensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

In the present paper the influence of natural variations in turbulence, wind shear and air density on the fatigue damage equivalent loads during power production are investigated. In site suitability analysis it is normally assumed that the fatigue loads can be estimated based on a 90% quantile for the turbulence and average values for the wind shear and air density. The analysis in the present paper shows that wind shear variations can have a significant influence on fatigue loads for some wind turbine sensors (components). The natural variation in shear should therefore be taken into account in site suitability analysis. The paper shows that this can be done with reasonable accuracy by using the 75% quantile. However, care should be taken since low and negative wind shears can increase the fatigue loads for some wind turbine sensors which may be handled by use of the 25% quantile.
Original languageEnglish
Title of host publicationFrom Measurements to Site Approval: A New and More Accurate Approach for Site Suitability Analysis : 10-13th March 2014 – Barcelona, Spain
Number of pages8
Volume26
PublisherThe European Wind Energy Association
Publication date2014
Pages386-393
Publication statusPublished - 2014
EventEWEA 2014 - Fira de Barcelona Gran Via, Barcelona, Spain
Duration: 10 Mar 201413 Mar 2014

Conference

ConferenceEWEA 2014
LocationFira de Barcelona Gran Via
Country/TerritorySpain
CityBarcelona
Period10/03/201413/03/2014
SeriesThe European Wind Energy Association

Bibliographical note

Online publication

Keywords

  • Wind Turbine
  • IEC 61400-1
  • Structural Integrity
  • Wind Climate
  • Wind

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