Why is DC motor speed regulating better than AC?
As long as the DC motor changes the armature voltage, it can speed up, but the AC motor needs to consider the stator and rotor coupling problem
The magnetic field of an AC motor is strongly coupled and time-varying, while the external conditions change and the speed changes as well, and it changes.
The magnetic flux can remain the same when the excitation voltage is constant at the time of DC speed regulation.
