Rotor magnetic field and stator magnetic field

[Physicslearner500039]

This is one of the big confusions i have. When rotor magnetic field is 90 degrees with respect to stator magnetic field we get maximum torque. In field oriented control the a, b, c axis is converted to d and q axis. So making d axis to 0 and q axis to torque and running through pi loop does automatically the 90 angle differnce? Please help.

 

[jim hardy]

In field oriented control the a, b, c axis is converted to d and q axis. So making d axis to 0 and q axis to torque and running through pi loop does automatically the 90 angle differnce?

I don't think i know enough to address that postulate

Have you dug through that TI paper on FOC?

 

[jim hardy]

So making d axis to 0 and q axis to torque and running through pi loop does automatically the 90 angle differnce?

Here is a tutorial video from TI

I've not watched it yet. First few minutes look practical.https://training.ti.com/field-oriented-control-permanent-magnet-motors

 

[jim hardy]

Here is a tutorial video from TI

I've not watched it yet. First few minutes look practical.

Well i just watched all 53 minutes of it.

Fabulous presentation . Holds you like a Tom Clancy novel. Took me right back to sophomore year Analog Computing class !

So making d axis to 0 and q axis to torque and running through pi loop does automatically the 90 angle differnce?

See around minutes 13 and 40.
The PI loop just drives measured current to desired amplitude.