For the front-end speed regulating wind turbine drive system
the critical operating point
main input and speed-regulating input component speed regulating section and other drive characteristics under six differential gear train connection modes are first analyzed respectively
and the relationship between component power ratio and speed ratio is studied. According to the actual operating conditions and manufacturing requirements of wind turbine
the connection form of differential gear train is optimized. Secondly
the wind turbine drive system model is established by considering the wind turbine
speed increasing gearbox
differential gear train
speed regulating motor and other components. On this basis
the parameters of wind energy utilization coefficient
blade tip speed ratio
differential gear train structure parameters
speed increase gearbox transmission ratio and so on are optimized and matched
and finally the selection of speed regulating motor is completed.