Shaking table test and numerical analysis of offshore wind turbine tower systems controlled by TLCD

2015 ◽  
Vol 14 (1) ◽  
pp. 55-75 ◽  
Author(s):  
Jianbing Chen ◽  
Youkun Liu ◽  
Xueyuan Bai
Keyword(s):  
Numerical Analysis ◽  
Wind Turbine ◽  
Shaking Table Test ◽  
Shaking Table ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Wind Turbine Tower

Shaking table test on vibration control effects of a monopile offshore wind turbine with a tuned mass damper

Wind Energy ◽  
2018 ◽  
Vol 21 (12) ◽  
pp. 1309-1328 ◽  
Author(s):  
Bin Zhao ◽  
Hui Gao ◽  
Zixin Wang ◽  
Zheng Lu
Keyword(s):  
Vibration Control ◽  
Wind Turbine ◽  
Shaking Table Test ◽  
Tuned Mass Damper ◽  
Shaking Table ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Mass Damper

Dynamic Modeling and Simulation of a Spar Floating Offshore Wind Turbine With Consideration of the Rotor Speed Variations

2019 ◽  
Vol 141 (8) ◽  
Author(s):  
Mohammed Khair Al-Solihat ◽  
Meyer Nahon ◽  
Kamran Behdinan
Keyword(s):  
System Dynamics ◽  
Wind Turbine ◽  
Torque Control ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Aerodynamic Load ◽  
Floating Platform ◽  
Dynamic Simulations ◽  
Floating Offshore Wind Turbine ◽  
Wind Turbine Tower

This paper presents a rigid multibody dynamic model to simulate the dynamic response of a spar floating offshore wind turbine (FOWT). The system consists of a spar floating platform, the moorings, the wind turbine tower, nacelle, and the rotor. The spar platform is modeled as a six degrees-of-freedom (6DOFs) rigid body subject to buoyancy, hydrodynamic and moorings loads. The wind turbine tower supports rigid nacelle and rotor at the tip. The rigid rotor is modeled as a disk spinning around its axis and subject to the aerodynamic load. The generator torque control law is incorporated into the system dynamics to capture the rotor spinning speed response when the turbine is operating below the rated wind speed. The equations of motions are derived using Lagrange's equation in terms of the platform quasi-coordinates and rotor spin speed. The external loads due to hydrostatics, hydrodynamics, and aerodynamics are formulated and incorporated into the equations of motion. The dynamic simulations of the spar FOWT are performed for three load cases to examine the system eigen frequencies, free decay response, and response to a combined wave and wind load. The results obtained from the present model are validated against their counterparts obtained from other simulation tools, namely, FAST, HAWC2, and Bladed, with excellent agreement. Finally, the influence of the rotor gyroscopic moment on the system dynamics is investigated.

scholarly journals Damping of Offshore Wind Turbine Tower Vibrations by a Stroke Amplifying Brace

2014 ◽  
Vol 53 ◽  
pp. 258-267 ◽  
Author(s):  
Mark L. Brodersen ◽  
Jan Høgsberg
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Wind Turbine Tower

scholarly journals Numerical Analysis of a Gravity Substructure for 5MW Offshore Wind Turbine

2018 ◽  
Vol 10 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Min-Su Park ◽  
◽  
Youn-Ju Jeong ◽  
Young-Jun You ◽  
Jeongsoo Kim
Keyword(s):  
Numerical Analysis ◽  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine
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