Chagrin:
Khalid:
Why not to use TRIAC, MOC and Arduino to PID control the AC motor??/Three phase motors don't allow that type of control. The speed of their rotation is locked to the AC frequency.
But again the OP wants to control in-rush current to the motor, not to control it's speed. No VFD required to do that, there are cheaper simpler methods as I posted earlier.
Lefty