One can always use an external rotary encoder on the shaft to directly measure position and speed. This works for any motor.I was wondering how can I determine physically in rotor position of IPMASM in speed control scheme.
And what is the difference between IM and IPMSM speed control technique?
Thanks
I noticed that too. I was assuming tht IPMASM was a typo, and that he meant IPMSM.I can't find an asynchronous IPM motor when I search. Everything IPM I can find is synchronous. Are we sure it's asynchronous? If it's synchrounous, you could know the rotor position by keeping track of the AC periods.
by Aaron Carman
by Aaron Carman
by Jake Hertz