what is the difference between the synchronous and induction inverters means?
Difference between Three Phase Induction Motor and Synchronous Motor A three phase Synchronous motor is a doubly excited machine, whereas an induction motor is a single excited machine. The armature winding of the Synchronous motor is energized from an AC source and its field winding from a DC source.
An induction motor is used for driving mechanical loads; Its efficiency is lesser than that of synchronous motor of the same output and voltage rating. Induction motor is cheaper than synchronous motor with same ratings; Induction motors are bit bigger in size than synchronous motor due to its construction.
DC and AC motors have differing means of speed control. While DC motors are controlled by varying the armature winding's current, AC motors simply vary the frequency. An induction motor and a synchronous motor are two types of AC motors. An induction motor uses a magnetic field on a rotor that is created by an induced current. A synchronous motor is powered by a current through slip rings or a permanent magnet. Synchronous motors usually run much faster than induction motors because of the presence of slip rings. DC electric motor repair is much more expensive than AC electric motor repair. Paper producing machines and steel mill rolling machines are a few examples of a DC electric motor.