Stability Analysis of TLP Floating Wind Turbine Under Severe Environmental Loading Condition

Farzad Mirzaei (1) , Amir Tavakoli (1) , Zinalabedin Tashakori (1)

1 SUTech - Shiraz University of Technology

Offshore wind turbines are subjected to combined wind and wave loadings. Severe environmental condition is probable to happen in marine areas when the wind speed and the wave height is high. Offshore wind turbines require to be stable and not to fail dynamically in severe environmental conditions. For this purpose, using the conservation of momentum theory and Newton's law, the floating wind turbine is modeled and the structural equations of motion is derived. The aerodynamic loading is determined using the blade element momentum theory and the hydrodynamic loading is modeled using the Airy wave theory. To model the severe environmental condition, high values for wind speed and wave height are chosen. To evaluate the stability of the floating wind turbine, a Tension Leg Platform type of floating wind turbine is selected. The system is modeled and simulated for different misalignment angles of wind and wave loading. It can be resulted that, the TLP type floating wind turbine is stable in the presence of misalignment between wind and wave loadings and in severe environmental condition.

Mots clés: TLP floating wind turbine; conservation of angular momentum; severe environmental condition

Domaines: Energie électrique

Farzad Mirzaei, Amir Tavakoli, Zinalabedin Tashakori. Stability Analysis of TLP Floating Wind Turbine Under Severe Environmental Loading Condition. 2018. ⟨hal-01856187⟩