Sensitivity Analysis of Load and Motion Response of Semi-Submerged Floating Wind Turbine
In order to study the parameter sensitivity of floating wind turbines under the action of ocean environment loads and motion responses,a time-domain dynamic simulation of the OC4-5 MW semi-submersible floating wind turbine model was conducted for aerodynamic-hydrodynamic-mooring integration,and the response laws of wind turbine displacement,inclination,acceleration,and tower load under key limiting shutdown conditions affected by multiple factors such as wind,wave,current loads,and yaw were compared and analyzed.The results showed that the change in the direction of the head of the central wind turbine design had negligible effects on structural imbalance,but the instal-lation orientation of the foundation should avoid the range of 60°-120° between the angle of the surge and the main frequency direction of wind and waves.The control of wind or leeward by turning on the yaw is beneficial to reduce the overall inclination,cabin acceleration,and tower bottom load;the influ-ence of the angle between the wind and wave directions is not obvious.In terms of design,the range of 0°-90° should be fully considered.Wave height has a significant impact on all observed variables,with the upper part of the wind turbine being more sensitive to high-frequency waves,while the foundation is more sensitive to low-frequency waves.The acceleration of the nacelle is greatly affected by wave flow,and less affected by wind load;the acceleration of the foundation is relatively insensitive to pa-rameters.
Floating Wind TurbineSemi-SubmersibleWind Wave and CurrentDynamic ResponseSensitivity Analysis
万方数据
维普
