Can a rotating stator with permanent magnets change polarity relative to the rotor?

[deuel18]

Hello. I just want to know if it is possible to have permanent magnets as Stator in a Rotating Magnetic field morot. However, these Stators rotates to change their polarities in relation with the Rotor. Much like the harmony of Intake/Exhaust valves in an Internal Combustion Engine.

 

[Vanadium 50]

If it rotates, it's not a stator, which is defined as not rotating.

 

[deuel18]

I know but i just used the 'term' so readers could see the perspective I am at. Because if I say rotor and then rotor, what's the difference? So I had to use the same term.

 

[CWatters]

Brushless motor with stationary windings in the middle and permanent magnets rotating around it...

http://www.rcuniverse.com/magazine/reviews/956/Outrunner_Inside.jpg

The speed controller makes the field in the windings rotate at same rpm as the outer rotor.