摘要
风力发电机是整个风电机组的核心部件,其振动响应特性直接影响风电机组的运行状况和使用寿命。针对4、7、15 kN/mm这3种刚度的弹性支撑,利用加速度传感器对某型号风力发电机的驱动端和非驱动端水平、垂直和轴向的振动响应特性进行实验研究,并利用频谱云图分析风力发电机驱动端和非驱动端在垂直方向振动响应下的表现。实验结果显示:在振动有效值分析中,4、7、15 kN/mm弹性支撑下风力发电机分别在转速1126、1232和1444 r/min附近出现速度有效值共振峰值,由其得到的固有频率与仿真计算得到的结果误差小于3%;通过频谱云图发现,风力发电机驱动端和非驱动端振动响应在7 kN/mm弹性支撑下整体表现更好。该研究结果表明了不同刚度弹性支撑下风力发电机共振特性实验研究的有效性;频谱云图的峰值分析方法可为风力发电机弹性支撑选型提供依据,具有实际工程意义。
The wind turbine generator is the core component of the entire wind turbine,and its vibration response characteristics directly affect the operating condition and service life of the wind turbine.This paper focuses on the experimental study of the horizontal,vertical,and axial vibration response characteristics of the driving and non driving ends of a certain type of wind turbine using acceleration sensors for elastic supports with stiffness of 4,7,and 15 kN/mm.The spectral cloud map is used to analyze the performance of the driving and non driving ends of the wind turbine under vertical vibration response.The experimental results show that in the vibration effective value analysis,the wind turbine generator under elastic support of 4,7,and 15 kN/mm exhibits resonance peaks of speed effective value at speeds around 1126,1232,and 1444 r/min,respectively.The error between the natural frequency obtained from it and the simulation results is less than 3%.Through the spectral cloud map,it is found that the vibration response of the driving end and non driving end of the wind turbine generator showed better overall performance under the elastic support of 7 kN/mm.The research results indicate the effectiveness of experimental research on the resonance characteristics of wind turbine generator under different stiffness elastic supports.The peak analysis method of spectral cloud map can provide a basis for the selection of elastic support for wind turbine generator,and has practical engineering signiflcance.
作者
张长春
王潇
陈建鹏
白聪儿
贾季涛
余清清
Zhang Changchun;Wang Xiao;Chen Jianpeng;Bai Conger;Jia Jitao;Yu Qingqing(Key Laboratory of Wind Power Technology of Zhejiang Province,Zhejiang Windey Co.,Ltd.,Hangzhou 310012,China)
出处
《太阳能》
2023年第5期47-55,共9页
Solar Energy
基金
国家重点研发计划(2019YFE0192600)。
关键词
风力发电机
振动响应特性
风电机组
共振峰值
弹性支撑选型
刚度
wind turbine generator
response characteristics of vibration
wind turbines
resonance peak
selection of elastic supports
stiffness
作者简介
通信作者:张长春(1989-),男,硕士、工程师,主要从事风电机组噪声和振动测试分析与研究方面的工作。changchun396@163.com。
