Dear @Yangyudong.Liu,
Just a few comments:
- The rotor inertia as of the NREL 5-MW baseline wind turbine as computed by ElastoDyn and reported in its summary (.ED.sum) file is 38.7 * 10^6 kg * m^2. So,
I_Drivetrain
from your Eq. 1 is 43.8 * 10^6 kg * m^2. - ElastoDyn output
RotTorq
is not the aerodynamic torque; rather,RotTorq
is the reaction torque within the low-speed shaft, that can differ fromT_Aero
when the rotor is accelerating or decelerating.T_Aero
is available in OpenFAST via AeroDyn v15 outputRtAeroMxh
. This topic has been discussed in other forum topics, e.g., see: Resistant moment of the rotor and of the electric generator. - I’m not sure I understand why you can’t run OpenFAST; can you clarify?
Best regards,