Coupled modeling and structural vibration control for floating offshore wind turbine
Coupled modeling and structural vibration control for floating offshore wind turbine
复制标题
漂浮式海上风力发电机组耦合建模与结构振动控制
DOI：
10.1016/j.renene.2020.05.075
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发表时间：
2020-09
期刊：
影响因子：
8.7
通讯作者：
E.M. He
中科院分区：
文献类型：
--
作者：
J.J. Yang;E.M. He
巨大的风浪激励会引起结构振动，从而影响浮式海上风力涡轮机的发电效率。为此，在翼梁式FOWT的平台和短舱中安装了两个调谐质量阻尼器（TMD），以控制结构的振动响应。首次建立了16自由度的Spar FOWT气动-液压-伺服-结构-TMD耦合动力学模型。通过与美国国家可再生能源实验室（NREL）研制的FAST项目OC 3的对比，验证了耦合模型的正确性。在此基础上，以质量和行程为约束条件，对TMD的刚度和阻尼系数进行了优化。进一步研究了TMD在自由衰减状态和风浪荷载作用下的减振效果。仿真结果表明，平台TMD能有效抑制平台纵摇运动和塔顶前后挠度的低频振动，而短舱TMD则能有效抑制塔顶前后挠度的高频振动。因此，TMD可以控制Spar FOWT的结构振动响应。
The tremendous wind-wave excitations bring about structural vibrations, which would have adverse influences on the power generation efficiency of the spar floating offshore wind turbine (FOWT). Therefore, two tuned mass dampers (TMDs) are installed in the platform and nacelle of the spar FOWT to control the vibration responses of the structure. The aero-hydro-servo-structure-TMDs coupling kinetics model of 16-degree-of-freedom (DOF) is firstly established for the spar FOWT. The correctness of the coupled model is then verified through comparing with OC3 project of FAST developed by the National Renewable Energy Laboratory (NREL). Subsequently, the TMDs stiffness and damping coefficients are optimized in constraints of the TMDs mass and stroke. Furthermore, the vibration reduction effects of TMDs are studied in the free decay state and wind-wave load cases, respectively. The simulation results demonstrate that the platform TMD can effectively reduce the platform pitch (PFPI) movement and low frequency vibration of the tower top fore-aft (TTFA) deflection, while the nacelle TMD is effective for the high frequency vibration of the TTFA deflection. Thus, the TMDs can control the structural vibration responses of spar FOWTs.
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DOI：
--
发表时间：
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期刊：
--
影响因子：
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