浮式风机半潜平台稳性数值分析

随着大型海上风电场的建设逐步由浅海域向深海海域发展,研究浮式风机已成为各国开发海上风能的热点工作,相应的传统固定式基础结构已不能满足海上风力机工作性能要求.因此设计一种三立柱式半潜平台作为浮式风机基础结构,并结合海洋平台与陆地风机的特点,应用海洋工程商业软件SESAM对半潜平台完整稳性及破舱稳性进行数值分析,主要考虑平台发生大角度倾斜及舱室破损倾斜后,浮式风机是否会出现倾覆现象.模拟结果证明,一舱破损或两舱破损风力机不会出现倾覆现象,风机可以保证正常发电.

Numerical analysis on stability of the semi-submersible platform of floating wind turbines

With constructiodn of the large-scale offshore wind farm developing gradually from the shallow sea to the deep sea,floating wind turbines have become a hot topic of offshore wind energy development in many countries.The traditional fixed type foundation can not meet the performance requirements of offshore wind turbines.This paper designs a triple-column semi-submersible as the foundation structure of floating wind turbines,and considering the characteristics of offshore platforms and wind turbines on the land,the commercial software SESAM for ocean engineering is used to do a numerical analysis on intact stability and damaged stability of the semi-submersible platform.The paper is mainly concerned with when the platform is inclined with a large angle and when the cabin is damaged to incline,if the floating wind turbine will overturn.Simulation results show that when one cabin or two cabins damage,the floating wind turbine will not overturn.The wind turbine can guarantee normal power generation.