Hello Jason , i hope you are doing well.
I faced another problem of control , when trying to generate a three state linearized model matrices, containing also Rotor Speed in addition to Generator Speed and torsion Angle .
I’ve red another forum topic in which you said : Rot_DOF = Gen_DOF + Dr_TrDOF , i didnt understand how to perform it practically .
If you could advise me a practical method to do it 
Thanks.
Sincerely