Title :
Single-phase induction motor with permanent magnet excitation
Author :
Ackermann, Bernd
Author_Institution :
Philips Res. Lab., Aachen, Germany
fDate :
9/1/2000 12:00:00 AM
Abstract :
A permanent magnet excited single-phase induction motor (SIM) has a very simple mechanical structure. Its stator is similar to that of shaded-pole or single-phase synchronous motors. However, there are two rotors: a diametrically magnetized permanent magnet cylinder rotating freely that is mounted within a copper cup linked to the load. Field equations describing its stationary behavior are solved analytically for a simplified motor geometry. From these performance characteristics are calculated and compared with measurements. Guidelines for design optimizations are derived
Keywords :
induction motors; machine theory; permanent magnet motors; rotors; stators; copper cup; diametrically magnetized permanent magnet cylinder; field equations; permanent magnet excitation; rotors; single-phase induction motor; stationary behavior; stator; very simple mechanical structure; Copper; Engine cylinders; Equations; Induction motors; Magnetic analysis; Permanent magnet motors; Permanent magnets; Rotors; Stators; Synchronous motors;
Journal_Title :
Magnetics, IEEE Transactions on
