风电机组偏航系统振动噪声特性分析  

Analysis of Features of Wind Turbine Yaw Vibration and Noise

作　　者：韩德海[1] 阳凌霄[1] 赵萍[1] 史天宝 李中林[1] 

机构地区：[1]南车株洲电力机车研究所有限公司风电事业部,湖南株洲412001

出　　处：《风能》2013年第12期82-86,共5页Wind Energy

摘　　要：风电机组偏航系统普遍设置有摩擦制动机构,低速摩擦自激振动现象多发。本文通过对实验室和风电场的风电机组出现的偏航振动噪声进行测试和分析,指出了振动加速度和噪声频谱上的倍频特征是偏航振动的典型特性,并可以依据噪声的频谱特征对此类故障进行诊断。Low speed self-excited vibration of wind turbine yaw system ofen happens, due to friction brake mechanism. Yaw vibration and noise of wind turbines from laboratory and wind farms are tested and analyzed in this paper, indicating that harmonic frequency is a distinction of the frequency spectrum. Faults can be diagnosed by spectral characteristics of the noise.

关 键 词：风电机组 偏航 振动 噪声 频谱 摩擦学 

分 类 号：TM315[电气工程—电机]