Synchronous motor parameters estimation

[ethantab]

Hello everyone, first post ,

I am trying to obtain some information about a motor which is not available to me in the data sheets, the motor is an 1800 rpm, 20000 hp 13.8kv 3ph synchrnous motor. I am trying to estimate are as follows:

1) q-axis sub-transient OC time constant T''q0
2) q-axis transient OC time constant T'q0
3) d-axis sub transient OC time constant t''d0
4) Armature Resistance
5)X'q
6) X1

Aside from the information in the first line I have the following information available:
Rotor inertia, Xd, X'd, X''d, Xq, X''q, X2, X0, T'd0.

What can I do to reasonably estimate some/ all of the unknown quantities?

Thanks so much in advance,
Ethan

 

[7anoter4]