6 MW新型浅水浮式风力机概念设计和运动响应分析
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Conceptual Design and Dynamic Response Analysis of 6 MW New Type Shallow Water Floating Wind Turbine
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    摘要:

    为使浮式风力机向浅海水域拓展,结合Spar与Semi平台的特点,提出适用于南海浅水水域的新概念浮式风力机平台。运用NREL_FAST软件建立浮式风力机系统气动-水动-锚链-弹性-伺服耦合的非线性动力学分析模型,采用叶素-动量理论计算气动载荷,采用势流理论和莫里森黏性阻尼修正方法计算水动力载荷,采用三维有限元法计算锚链系统载荷,在风、浪、流环境载荷作用下研究不同风浪夹角下新概念浮式风力机运动响应性能。结果表明:6 MW新概念浮式风力机在南海50 m水深水域中支撑6 MW风力机运动响应良好;浪向角改变对纵荡运动影响较大,对纵摇、艏摇和垂荡运动运动有一定影响。新概念浮式风力机在南海50 m设计海域运动性能良好。

    Abstract:

    In order to expand the floating wind turbine to shallow waters, the characteristics of the Spar platform is combined with the Semi platform and a new concept floating wind turbine platform is proposed suitable for the shallow waters of the South China Sea. The aerodynamic-hydrodynamic-anchor chain-elastic-servo coupling nonlinear dynamic analysis model of the floating wind turbine system is established. The leaf element-momentum theory is adopted to calculate the aerodynamic load. The hydrodynamic load is calculated based on the potential flow theory. The anchor chain tension is calculated based on the three-dimensional finite element method. Under the wind, wave and current environmental loads, the FAST software is used to study the motion response performance of the new concept floating wind turbine under different wind and wave angles. The results show that: the new concept floating platform supports a 6 MW wind turbine with a good motion response at a water depth of 50 m; there is no coupling between heave and pitch motion; the change of wave angle is of great influence on surge motion, and of certain influence on pitch, yaw and heave motion. The new concept floating wind machine is of good sport performance in the 50 m design waters of the South China Sea.

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张国榕,何炎平,阳杰,吴浩宇,赵永生.6 MW新型浅水浮式风力机概念设计和运动响应分析[J].中国海洋平台,2022,(06):64-70

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  • 在线发布日期: 2022-12-15
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