Modelling and optimization of a passive structural control design for a spar-type floating wind turbine

2014 ◽  
Vol 69 ◽  
pp. 168-182 ◽  
Author(s):  
Yulin Si ◽  
Hamid Reza Karimi ◽  
Huijun Gao
Keyword(s):  
Wind Turbine ◽  
Structural Control ◽  
Control Design ◽  
Floating Wind Turbine ◽  
Passive Structural Control ◽  
Modelling And Optimization

scholarly journals Adaptive Structural Control of Floating Wind Turbine with Application of MR Damper

2019 ◽  
Vol 158 ◽  
pp. 254-259 ◽  
Author(s):  
Lei Wang ◽  
Zhaohua Liang ◽  
Ming Cai ◽  
Yang Zhang ◽  
Jinyue Yan
Keyword(s):  
Wind Turbine ◽  
Structural Control ◽  
Mr Damper ◽  
Floating Wind Turbine

Vibration and Load Suppression of Offshore Floating Wind Turbine

2014 ◽  
Vol 1025-1026 ◽  
pp. 891-896 ◽  
Author(s):  
Er Ming He ◽  
Ya Qi Hu ◽  
Yang Zhang ◽  
Ge Liang Yin
Keyword(s):  
Wind Turbine ◽  
Structural Dynamics ◽  
Wind Turbines ◽  
Structural Control ◽  
Offshore Wind ◽  
Dynamics Simulation ◽  
Type Model ◽  
Simulation Code ◽  
Offshore Wind Turbines ◽  
Floating Wind Turbine

The application of tuned mass dampers (TMDs) to offshore wind turbines has a huge potential to suppress the large vibration responses of these systems. Control module of TMDs is added into the wind turbine structural dynamics simulation code FAST and fully coupled aero-hydro-TMD-structural dynamics model of the 5MW Barge-type floating wind turbine by National Renewable Energy Laboratory (NREL) is established. A multi-parameter optimization study is performed to determine the optimal parameters of a fore-aft TMD system in the Barge-type model. The wind turbine model equipped with the optimal TMD is then simulated under five typical load conditions and the performance of the new system is evaluated. The results show that longitudinal loads at tower base and deflections at tower top reductions of up to 50% and longitudinal loads at blade root and deflections at blade tip reductions of up to 40% are achieved, which indicates that the optimal TMD can be used to suppress the vibration response of offshore wind turbines and also demonstrates the potential for TMD structural control approaches.

scholarly journals Modeling and Parameter Analysis of the OC3-Hywind Floating Wind Turbine with a Tuned Mass Damper in Nacelle

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Yulin Si ◽  
Hamid Reza Karimi ◽  
Huijun Gao
Keyword(s):  
Wind Turbine ◽  
Structural Control ◽  
Parameter Tuning ◽  
Tuned Mass Damper ◽  
Parameter Analysis ◽  
Load Reduction ◽  
Floating Wind Turbine ◽  
Mass Damper ◽  
Moderate Load ◽  
Tuning Methods

Floating wind turbine will suffer from more fatigue and ultimate loads compared with fixed-bottom installation due to its floating foundation, while structural control offers a possible solution for direct load reduction. This paper deals with the modelling and parameter tuning of a spar-type floating wind turbine with a tuned mass damper (TMD) installed in nacelle. First of all, a mathematical model for the platform surge-heave-pitch motion and TMD-nacelle interaction is established based on D’Alembert’s principle. Both intrinsic dynamics and external hydro and mooring effects are captured in the model, while tower flexibility is also featured. Then, different parameter tuning methods are adopted to determine the TMD parameters for effective load reduction. Finally, fully coupled nonlinear wind turbine simulations with different designs are conducted in different wind and wave conditions. The results demonstrate that the design of TMD with small spring and damping coefficients will achieve much load reduction in the above rated condition. However, it will deteriorate system performance when the turbine is working in the below rated or parked situations. In contrast, the design with large spring and damping constants will produce moderate load reduction in all working conditions.

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