可再生能源2024，Vol.42Issue(4)：479-485,7.
大兆瓦风力发电机组运行载荷与地震激励共同作用下的结构响应分析
Structural response analysis of large MW wind turbine under the combined action of operating load and seismic excitation
摘要
Abstract
The wind turbines are subjected to continuous wind loads during their whole service life and are inevitably resisted earthquake action.In this paper,a large megawatt wind turbine is taken as the research object to simulate and analyze its deformation and mechanical responses under the conditions of normal operation,earthquake during shutdown and earthquake during operation.The results show that the deformation of wind turbine increases with the increase of tower height,and the horizontal displacement of the wind turbine under the earthquake is obviously less than that under the wind turbine operation state.With the increase of earthquake level,the horizontal displacement of the wind turbine is gradually increased.The deformation shape of the wind turbine remains unchanged,and the deformation of tower top is large.The influence of the wind turbine operating load on structural deformation response is significantly greater than that of small and medium earthquake actions.Meanwhile,the deformation response of the wind turbine under the combined action of operating load and earthquake is significantly greater than that under the separate action of two loads.In the structural design of the wind turbine,it is necessary to consider the coupling effect of the operating state and the earthquake.The stress response at the top of the tower is the largest,and its cross-section should be checked in the design.关键词
风力发电机组/运行载荷/地震作用/变形响应/力学响应Key words
wind turbine/operating load/earthquake action/deformation response/mechanical response分类
能源科技引用本文复制引用
刘嘉琳,史久畅,张林中,韩新月..大兆瓦风力发电机组运行载荷与地震激励共同作用下的结构响应分析[J].可再生能源,2024,42(4):479-485,7.基金项目
国家重点研发计划项目(2020YFN1506700) （2020YFN1506700）
国家能源集团联合动力技术有限公司科技创新项目(LHDL-2021-02). （LHDL-2021-02）
