A PERMANENT MAGNET SYNCHRONOUS ARRAY-TYPE AC MOTOR WITHOUT BEARINGS

摘要

A permanent magnet synchronous array-type AC motor without bearings includes a rotor that uses U-shape permanent magnets and a stator that uses U-shape windings. An appropriate combination of the number of the rotor poles and the number of the stator poles is used to design the synchronous speed. Electronic elements control the stator windings to power on. The load capacity of the motor depends on the number of the stator windings that are powered on.