Articles | Volume 5, issue 3
Wind Energ. Sci., 5, 929–944, 2020
Wind Energ. Sci., 5, 929–944, 2020
Research article
23 Jul 2020
Research article | 23 Jul 2020

Differences in damping of edgewise whirl modes operating an upwind turbine in a downwind configuration

Gesine Wanke et al.

Related authors

Redesign of an upwind rotor for a downwind configuration: design changes and cost evaluation
Gesine Wanke, Leonardo Bergami, Frederik Zahle, and David Robert Verelst
Wind Energ. Sci., 6, 203–220,,, 2021
Short summary
Qualitative yaw stability analysis of free-yawing downwind turbines
Gesine Wanke, Morten Hartvig Hansen, and Torben Juul Larsen
Wind Energ. Sci., 4, 233–250,,, 2019
Short summary

Related subject area

Design methods, reliability and uncertainty modelling
Effectively using multifidelity optimization for wind turbine design
John Jasa, Pietro Bortolotti, Daniel Zalkind, and Garrett Barter
Wind Energ. Sci., 7, 991–1006,,, 2022
Short summary
Efficient Bayesian calibration of aerodynamic wind turbine models using surrogate modeling
Benjamin Sanderse, Vinit V. Dighe, Koen Boorsma, and Gerard Schepers
Wind Energ. Sci., 7, 759–781,,, 2022
Short summary
Fast yaw optimization for wind plant wake steering using Boolean yaw angles
Andrew P. J. Stanley, Christopher Bay, Rafael Mudafort, and Paul Fleming
Wind Energ. Sci., 7, 741–757,,, 2022
Short summary
A simplified, efficient approach to hybrid wind and solar plant site optimization
Charles Tripp, Darice Guittet, Jennifer King, and Aaron Barker
Wind Energ. Sci., 7, 697–713,,, 2022
Short summary
Influence of wind turbine design parameters on linearized physics-based models in OpenFAST
Jason M. Jonkman, Emmanuel S. P. Branlard, and John P. Jasa
Wind Energ. Sci., 7, 559–571,,, 2022
Short summary

Cited articles

Bir, G.: Multiblade Coordinate Transformation and Its Application to Wind Turbine Analysis, Report NREL/CP-500-42553, available at: (last access: 10 November 2019), 2008. a
Glasgow, J., Miller, D., and Corrigan, R.: Comparison of upwind and downwind rotor operations of the DOE/NASA l00-kW MOD-0 wind turbine, NASA Report;, No. TM-8744; 225–234, 1981. a
Hansen, M. H.: Improved Modal Dynamics of Wind Turbines to Avoid Stall-induced Vibrations, Wind Energy, 6, 179–195,, 2003. a, b
Hansen, M. H.: Aeroelastic Stability Analysis of Wind Turbines Using an Eigenvalue Approach, Wind Energy, 7, 133–143,, 2004. a, b
Hansen, M. H.: Aeroelastic instability problems for wind turbines, Wind Energy, 10, 551–577,, 2007.  a, b, c, d
Short summary
Converting an upwind wind turbine into a downwind configuration is shown to come with higher edgewise loads due to lower edgewise damping. The study shows from modal displacements of a reduced-order turbine model that the interaction between the forces on the rotor, the rotor motion, and the tower torsion is the main reason for the observed damping decrease.