Investigation on long-term extreme response of an integrated offshore renewable energy device with a modified environmental contour method

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Abstract

Considering the massive simulations required by the full long-term analysis, the environmental contour method is commonly used to predict the long-term extreme responses of an offshore renewable system during life time. Nevertheless, the standard environmental contour method is not applicable to the wind energy device due to the non-monotonic aerodynamic behaviour of the wind turbine. This study presents the development of a modified environmental counter method and its application to the extreme responses of a hybrid offshore renewable system. The modified method considers the variability of the
responses by checking multiple contour surfaces so that the non-monotonic aerodynamic behaviour of the wind turbine is considered. The hybrid system integrates a floating wind turbine, a wave energy converter and two tidal turbines. Simulation results prove that the modified method has a better
accuracy.
Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalRenewable Energy
Volume132
Early online date30 Jul 2018
DOIs
Publication statusPublished - 31 Mar 2019

Keywords

  • extreme response
  • environmental contour method
  • renewable energy
  • floating wind turbine
  • wave energy converter
  • tidal turbine

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