Dynamic behavior of parked wind turbine at extreme wind speed

Yoshitaka Totsuka, Hiroshi Imamura, Anders Yde

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In wind turbine design process, a series of load analysis is generally performed to determine ultimate and fatigue loads under various design load cases (DLCs) which is specified in IEC 61400. These design load scenario covers not only normal operating condition but also startup,
shutdown, parked and other scenario which is assumed to occur during the expected lifetime of wind turbine. This research focus on vibration problem under 50-year storm conditions while rotor is parked and blades are feathered. In this parked scenario, effect of a wind direction
change of up to ± 180 degrees for both cases of standstill and idling is analyzed by time domain simulations using two different coupled aero-hydro-servo-elastic codes. Trend in modern wind turbines is development of bigger, lighter and more flexible rotors where vibration issues may cause aero-elastic instabilities which have a serious impact on the ultimate loads. The DTU 10MW Reference Wind Turbine (RWT) is chosen as wind turbine model in this research.
Original languageEnglish
Title of host publicationProceedings of First International Symposium on Flutter and its Application, 2016
Number of pages10
Publication date2016
Publication statusPublished - 2016
EventFirst International Symposium on Flutter and its Application, 2016 - Tokyo, Japan
Duration: 15 May 201617 May 2016

Conference

ConferenceFirst International Symposium on Flutter and its Application, 2016
CountryJapan
CityTokyo
Period15/05/201617/05/2016

Keywords

  • Wind turbine design
  • Aero-elastic simulation
  • Fluid-structure interaction

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