Integrated modelling platform for dynamic performance assessment of floating wind turbines

Atsede G. Endegnanew, Kristian Satertro, Sverre Gjerde, Harald Svendsen, Olimpo Anaya-Lara, John O. Tande, Kjetil Uhlen, Svein Gjolmesli

Research output: Contribution to journalArticle

Abstract

The paper presents an integrated modelling platform that can be used to assess the dynamic performance of an offshore wind turbine mounted on a spar-buoy type floater. Sub-models of generator and converter controllers and the power network are combined with a state-of-the-art numerical simulation of the hydro-, aero- and structural dynamic behavior of the floating wind turbine, using FEDEM Windpower software. The aim is to provide a tool that allows analyzing response of floating turbines to grid faults, interactions and potential conflicts between controllers. A study case of grid disturbance was conducted to illustrate the applicability of an integrated model. A grid fault that lasted 100ms and resulted in 50% residual voltage at the grid connection point was applied, and wind turbine operation both in still water and in large sea wave conditions were analyzed. The results show that the turbine was capable of riding through voltage-dips without severe effects on the electrical or mechanical systems. A significant, but not critical, dip in the tower bending moment was observed. The most affected component of the bending moment is around the axis of the rotor, which is directly related to the loss of generator torque due to the grid disturbance event.
LanguageEnglish
Pages376-391
Number of pages16
JournalEnergy Procedia
Volume80
DOIs
Publication statusPublished - 2 Dec 2015

Fingerprint

Bending moments
Wind turbines
Turbines
Offshore wind turbines
Controllers
Structural dynamics
Electric potential
Towers
Torque
Rotors
Computer simulation
Water

Keywords

  • floating turbine
  • integrated modelling
  • wind turbine modeling
  • fault ride through
  • motion response
  • offshore wind introduction

Cite this

Endegnanew, A. G., Satertro, K., Gjerde, S., Svendsen, H., Anaya-Lara, O., Tande, J. O., ... Gjolmesli, S. (2015). Integrated modelling platform for dynamic performance assessment of floating wind turbines. Energy Procedia, 80, 376-391. https://doi.org/10.1016/j.egypro.2015.11.442
Endegnanew, Atsede G. ; Satertro, Kristian ; Gjerde, Sverre ; Svendsen, Harald ; Anaya-Lara, Olimpo ; Tande, John O. ; Uhlen, Kjetil ; Gjolmesli, Svein. / Integrated modelling platform for dynamic performance assessment of floating wind turbines. In: Energy Procedia. 2015 ; Vol. 80. pp. 376-391.
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abstract = "The paper presents an integrated modelling platform that can be used to assess the dynamic performance of an offshore wind turbine mounted on a spar-buoy type floater. Sub-models of generator and converter controllers and the power network are combined with a state-of-the-art numerical simulation of the hydro-, aero- and structural dynamic behavior of the floating wind turbine, using FEDEM Windpower software. The aim is to provide a tool that allows analyzing response of floating turbines to grid faults, interactions and potential conflicts between controllers. A study case of grid disturbance was conducted to illustrate the applicability of an integrated model. A grid fault that lasted 100ms and resulted in 50{\%} residual voltage at the grid connection point was applied, and wind turbine operation both in still water and in large sea wave conditions were analyzed. The results show that the turbine was capable of riding through voltage-dips without severe effects on the electrical or mechanical systems. A significant, but not critical, dip in the tower bending moment was observed. The most affected component of the bending moment is around the axis of the rotor, which is directly related to the loss of generator torque due to the grid disturbance event.",
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Endegnanew, AG, Satertro, K, Gjerde, S, Svendsen, H, Anaya-Lara, O, Tande, JO, Uhlen, K & Gjolmesli, S 2015, 'Integrated modelling platform for dynamic performance assessment of floating wind turbines' Energy Procedia, vol. 80, pp. 376-391. https://doi.org/10.1016/j.egypro.2015.11.442

Integrated modelling platform for dynamic performance assessment of floating wind turbines. / Endegnanew, Atsede G.; Satertro, Kristian; Gjerde, Sverre; Svendsen, Harald; Anaya-Lara, Olimpo; Tande, John O.; Uhlen, Kjetil; Gjolmesli, Svein.

In: Energy Procedia, Vol. 80, 02.12.2015, p. 376-391.

Research output: Contribution to journalArticle

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AU - Endegnanew, Atsede G.

AU - Satertro, Kristian

AU - Gjerde, Sverre

AU - Svendsen, Harald

AU - Anaya-Lara, Olimpo

AU - Tande, John O.

AU - Uhlen, Kjetil

AU - Gjolmesli, Svein

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