摘要
相比陆上风电机组,海上风电机组支撑结构长期处于风载荷与海浪载荷作用,在设计时还需考虑土壤与基础的相互作用。以某5 MW单桩式海上风电机组支撑结构为模型,考虑基础柔性对机组载荷的影响,应用耦合弹簧模型建立基础模型,计算极限设计载荷,结合有限元模型计算基础部分设计载荷,采用粒子群优化算法,在满足多约束条件下,最小化支撑结构重量。结果表明:考虑基础柔性条件下,应用粒子群优化算法优化支撑结构,在满足各项约束条件的前提下,总体重量降低7.41%。
Compared with onshore wind turbines,offshore wind turbine support structures is affected frequently by wind loads and wave loads,and taking the support structure of a 5 MW monopile offshore wind turbine as a model,considering the influence of flexible foundation on load in the working process,the coupled spring model is chosen to establish the foundation model,and calculate the extreme design load.Then the finite element model is used to get the load of foundation as part of the design load.Particle swarm optimization algorithm is used to minimize the support structure’s mass,under multiple constraint.The result shows that based on the particle swarm optimization algorithm,the overall quality of the structure is reduced by 7.41%,under the premise of satisfying various constraints.
作者
田德
陈静
罗涛
闫肖蒙
邓英
Tian De;Chen Jing;Luo Tao;Yan Xiaomeng;Deng Ying(State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2019年第4期1185-1192,共8页
Acta Energiae Solaris Sinica
基金
中央高校基本科研业务费专项资金(2018QN065)
关键词
海上风电机组
粒子群优化
有限元分析
支撑结构
耦合弹簧模型
offshore wind turbines
particle swarm optimization
finite element analysis
support structure
coupled spring model
