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Trasient aerodynamic load prediction model for horizontal axis wind turbines based on dynamic inflow theory

Journal Article


Abstract


  • According to the limitations of the Blade Element-Momentum (BEM) theory, the time-lag effect of the induced velocity field of the wind turbine when operating in unstationary environment was taken into account. Applying the acceleration potential method, the expression of added mass was derived, and a new thrust equation was established to amend the BEM theory. Consequently a transient aerodynamic load prediction model considering the dynamic inflow effect was presented. Adopting the model, simulations of transient load for fast change of wind speed and pitching of a 1.25 MW wind turbine carried out. The simulation results indicate that the presented model can preferably predict the time-lag effect of the induced velocity field, the large overshoots of loads and the subsequent procedure of gradually returning to the equilibrium value.

Publication Date


  • 2009

Citation


  • Liu, X., Zhang, X., Chen, Y., & Ye, Z. (2009). Trasient aerodynamic load prediction model for horizontal axis wind turbines based on dynamic inflow theory. Taiyangneng Xuebao/Acta Energiae Solaris Sinica, 30(4), 412-419.

Scopus Eid


  • 2-s2.0-65649109313

Web Of Science Accession Number


Start Page


  • 412

End Page


  • 419

Volume


  • 30

Issue


  • 4

Abstract


  • According to the limitations of the Blade Element-Momentum (BEM) theory, the time-lag effect of the induced velocity field of the wind turbine when operating in unstationary environment was taken into account. Applying the acceleration potential method, the expression of added mass was derived, and a new thrust equation was established to amend the BEM theory. Consequently a transient aerodynamic load prediction model considering the dynamic inflow effect was presented. Adopting the model, simulations of transient load for fast change of wind speed and pitching of a 1.25 MW wind turbine carried out. The simulation results indicate that the presented model can preferably predict the time-lag effect of the induced velocity field, the large overshoots of loads and the subsequent procedure of gradually returning to the equilibrium value.

Publication Date


  • 2009

Citation


  • Liu, X., Zhang, X., Chen, Y., & Ye, Z. (2009). Trasient aerodynamic load prediction model for horizontal axis wind turbines based on dynamic inflow theory. Taiyangneng Xuebao/Acta Energiae Solaris Sinica, 30(4), 412-419.

Scopus Eid


  • 2-s2.0-65649109313

Web Of Science Accession Number


Start Page


  • 412

End Page


  • 419

Volume


  • 30

Issue


  • 4