摘要
本文定量研究浮式风机系统风载荷与浮式基础运动间的相互影响。建立了浮式风力机系统一体化耦合动力学分析模型,对比分析了风载荷对系缆力、浮式基础运动、机舱加速度的影响及浮式基础运动对叶片相对流速、叶片推力和发电功率的影响。结果表明,风载荷显著影响浮式基础纵荡/纵摇平均值,对其标准差影响较小;风载荷对系缆力的平均值和标准差都有一定影响,而机舱加速度受风载荷的影响并不大;浮式基础运动对叶片相对风速的标准差有显著影响,离轮毂越远位置的相对风速受基础运动影响越大,这导致浮式风机叶片推力和发电功率有很大波动。为保证平稳发电,对浮式风机控制设计时,需考虑浮式基础运动的影响。
This paper studies the interaction between the wind load and the motion of the floating foundation of the floating offshore wind turbine system quantitatively. The integrated coupling dynamics model of the floating wind turbine system was established, and the influence of wind load on mooring force, floating foundation motion, nacelle acceleration and floating foundation motion on the relative velocity of blades, blade thrust and power generation were compared and analyzed. The results show that wind load significantly affects the mean value of sway/pitch of the floating foundation, and has little effect on its standard deviation. Wind load has a certain effect on the mean value and standard deviation of mooring force, while the acceleration of the nacelle is not greatly affected by the wind load. The motion of the floating foundation has a significant influence on the standard deviation of the relative wind speed of the blades. The farther the position from the hub is, the greater the relative wind speed is affected by the foundation motion, which leads to great fluctuations in the thrust and power generation of the floating wind turbine blades. In order to ensure stable power generation, the influence of the floating foundation motion should be considered when designing the control system of the floating wind turbine.
作者
杨林林
李红涛
唐广银
林子赫
李焱
刘利琴
YANG Lin-lin;LI Hong-tao;TANG Guang-yin;LIN Zi-he;LI Yan;LIU Li-qin(Marine Engineering Technology Center of CCS,Tianjin 300457,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China)
出处
《舰船科学技术》
北大核心
2024年第1期56-62,共7页
Ship Science and Technology
关键词
浮式风机
耦合分析
风载荷影响
浮式基础运动影响
offshore floating wind turbine
coupling analysis
wind load effect
floating foundation motion effect
