Dynamic simulation of wind turbine drive train
YANG Yang, QI Tao, SU Feng yu, DONG Shu yan, HE Hai jian, CHAO Guan liang
(XJ Group Wind Power Technology Company, Xuchang 461000, China)


Abstract: Aiming at the problems of torsional resonance of the wind turbine drive chain in its working speed range, the multiflexible body dynamics simulation model of MW wind turbine drive chain was built based on dynamic simulation software SIMPACK and FE analysis software ANSYS according to GL2010 standard. The frequency domain response analysis of the dynamic simulation model of the drive chain was carried out through modal analysis method and its potential resonance frequencies were selected based on 2D campbel and modal energy distribution diagrams. Finally the time domain simulation analysis was conducted and the Fourier transform of the acceleration of the relevant parts was carried out to further verify whether the potential resonance frequencies were the actual resonance frequencies. The results indicate that there is no dangerous resonance frequency of the wind turbine drive train, so it can run safely and stably in its working speed range. This method can provide the reference basis for the stability and reliability design of the wind turbine.

Key words: wind turbine; drive train; torsional resonance; dynamic simulation model; time domain simulation