Research Centre of Shanghai Equipment Manufacturing Industry Development,Shanghai Dianji University,Shanghai 201306,China;
School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;
Research Centre of Shanghai Equipment Manufacturing Industry Development,Shanghai Dianji University,Shanghai 201306,China;
Research Centre of Shanghai Equipment Manufacturing Industry Development,Shanghai Dianji University,Shanghai 201306,China;
wind turbine; improved extreme learning machine (IELM); principal component analysis (PCA); fault diagnosis;