王海云,董昱廷,史亚娟,唐新安.基于小波包域双谱的风力机振动信号监测方法研究[J].电测与仪表,2015,52(16):. Wang Haiyun,Dong Yuting,Shi Yajuan,Tang Xin’an.Based on wavelet packet domain bispectrum of wind turbine research of on-line monitoring method[J].Electrical Measurement & Instrumentation,2015,52(16):.
基于小波包域双谱的风力机振动信号监测方法研究
Based on wavelet packet domain bispectrum of wind turbine research of on-line monitoring method
In recent years, the wind power has developed rapidly, but the proportion of wind turbine operation and maintenance costs large, so the wind turbine installation and application-line monitoring system is essential. This paper mainly studies the wind turbine on-line monitoring methods, a large number of bearing vibration signal from 1.5 MW direct-drive models in wind farms were extracted. Select a group normal and fault data, use wavelet packet domain bispectrum analysis, and compared with the traditional bispectrum method. Experimental results show that wavelet packet domain bispectrum was significantly better than the traditional bispectrum, and it can well suppress non-Gaussian noise, and can effectively avoid the disadvantages of the wavelet analysis. It provides a good basis for the online monitoring reflection of further information and early warning of abnormal conditions.
