Most pumps and enthusiasts operating in industrial and commercial applications are currently driven by AC induction motors. “ACIM”, which stands for “alternating current induction motor”, is an asynchronous kind of motor that relies on electric current to carefully turn the rotor. Torque can be produced by electric current in the rotor. The electric current is generated through electromagnetic induction from the magnetic field of the stator windings. In an ACIM, the rotor always rotates at a lower speed compared to the magnetic field. A “PMSM”, which stands for “permanent magnet synchronous motor”, depends on magnets to carefully turn the rotor, which spins at the same rate as the PMSM’s inner rotating magnetic field.
There are some key differences between AC induction permanent magnet synchronous motor Motors and Permanent Magnet Synchronous Motors.