大型双馈风电机组弹性支承动态特性分析  

Dynamic characteristics analysis of large-scale doubly-fed wind turbine elastic support

作　　者：尹尧杰 褚景春 姜培学[3] Yin Yaojie;Chu Jingchun;Jiang Peixue(GuoDian United Power Technology Co.,Ltd.,Beijing 100039,China;CHN Energy New Energy Technology Research Institute Co.,Ltd.,Beijing 102209,China;Department of Thermal Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]国电联合动力技术有限公司,北京100039 [2]国家能源集团新能源技术研究院有限公司,北京102209 [3]清华大学热能工程系,北京100084

出　　处：《可再生能源》2024年第8期1054-1060,共7页Renewable Energy Resources

基　　金：国家重点研发计划项目(2020YFN1506700);国家能源集团联合动力技术有限公司科技创新项目(LHDL-2021-03)。

摘　　要：风电机组正在朝着大型化与智能化方向发展,机组载荷成倍增长,这对机组部件的动力学设计提出了更高要求。文章以风电机组齿轮箱弹性支承为研究对象,首先,采用多体动力学软件建立了风电机组整机动力学模型,并耦合风轮气动载荷计算与风电机组控制程序;然后,利用搭建的风电机组整机模型计算了均匀风速下齿轮箱弹性支承的动态响应时频特性,对比分析了风切变、塔影效应以及非线性刚度对弹性支承响应的影响规律;最后,结合实际仿真计算了湍流风速工况下风电机组一个弹性支承出现损坏时的动态响应。结果表明,当弹性支承出现损坏仅能匹配50%刚度时,其响应会急剧增大,超过振动标准安全阈值4倍以上,影响风电机组整机安全稳定运行。The wind turbine is developing towards large-scale and intelligent,the loads of the turbine are increasing exponentially,which puts forward higher requirements for the dynamic design of the turbine components.In this paper takes the elastic support of wind turbine gearbox as the research object,and the dynamic model of entire wind turbine is established by using multi-body multi-dynamics software,coupled with the calculation of aerodynamic load and the control program of wind turbine.The time-frequency characteristics of the dynamic response of the elastic support under uniform wind are calculated,and the influences of wind shear,tower shadow effect and nonlinear stiffness on the elastic support are compared and analyzed.Finally,the dynamic response of the elastic support of the wind turbine under the condition of turbulent wind are simulated.The results show that when the elastic support is damaged and only matches 50%of the stiffness,the response of the elastic support increases sharply,exceeding the vibration standard safety threshold by more than 4 times,which affects the safe and stable operation of the whole wind turbine.

关 键 词：风电机组 多体动力学 非线性刚度 弹性支承 动态特性 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]