Dear Dr.Jonkman,
Actually, I’m trying to validate my model. To do so, I’ve compared the responses of my system with those of the model which is generated by FAST(in the “open loop.mdl” file). In the previous post, the first image showed my model on the right side and “open loop FAST” on the left side.
The Outputs of both systems are:
'IfW Wind1VelX, (m/s)'
'IfW Wind1VelY, (m/s)'
'IfW Wind1VelZ, (m/s)'
'SrvD BlPitchC1, (deg)'
'SrvD BlPitchC2, (deg)'
'SrvD BlPitchC3, (deg)'
'SrvD GenTq, (kN·m)'
'SrvD GenPwr, (kW)'
'ED LSSTipPxa, (deg)'
'ED LSSTipVxa, (rpm)'
'ED BldPitch2, (deg)'
'ED TipALxb1, (m/s^2)'
'ED TipALyb1, (m/s^2)'
'ED TwstDefl1, (deg)'
'ED TwstDefl2, (deg)'
'ED TwstDefl3, (deg)'
'ED RootMxb2, (kN·m)'
'ED RootMyb2, (kN·m)'
'ED RootMzb2, (kN·m)'
'ED LSShftFys, (kN)'
'ED LSShftFzs, (kN)'
'ED LSSTipMys, (kN·m)'
'ED LSSTipMzs, (kN·m)'
'ED YawBrTDxp, (m)'
'ED YawBrTDyp, (m)'
'ED QD2_TSS1, (m/s^2)'
'ED QD2_B1E1, (m/s^2)'
'ED YawBrMxn, (kN·m)'
'ED YawBrMyn, (kN·m)'
'ED YawBrMzn, (kN·m)'
'ED HSShftV, (rpm)'
'ED TwHt2ALzt, (m/s^2)'My question is: Why the outputs of my system is different with those of FAST, even in the measured wind speed?
My state-space model contains MBC average matrices as the state-space matrices. Linearisation is done around an operation point in the full load region of WindPACT 1.5MW, at a 20m/s wind speed.
Sincerely,
Hooman Asgari