Linearization issue using Fast V7.02

Wind & Water Computer-Aided Engineering Software Tools
121

Dear Jason,

I’m sorry I still need your help.

I checked the links you provided and other relevant links，
FAST linearization V7.
I’m sorry that I still don’t know what to do to eliminate the generator rotor azimuth and convert my four state model to a three state model.

  1. I obtained AvgAMat matrix and AvgCMat matrix by using azimuth averaging, but the column related to generator azimuth state is actually not zero. Does this mean that I cannot eliminate generator azimuth as a state?
    1dab0c80a10698c1fea4e76d61285be
    c5916d9d15c082716e87a195bef6a06

  2. If possible, in the AvgAMat matrix I obtained, two to four columns correspond to three states respectively, DrTr, GeAz, QD_ DrTr。 These three states are just the three state variables I need to design the controller.What can I do to eliminate the generator azimuth and change it to 3 × 3？

  3. Correspondingly, in the AvgBMat matrix, one to four rows represent GeAz, QD_ DrTr,QD2_ GeAz and QD2_ DrTr, if i want to eliminate generator azimuth and change it to 3 ×1, which row should I delete?
    image

Thank you in advance.

Kind regards,