Title :
A bearingless method for induction machines
Author :
Salazar, Andres Ortiz ; Stephan, Richard M.
Author_Institution :
Dept. de Electron., FIEE-UNI, Lima, Peru
fDate :
11/1/1993 12:00:00 AM
Abstract :
A bearingless induction motor system that uses standard windings is proposed. The theoretical assumptions are tested experimentally using a four-pole, two-phase machine without one mechanical bearing. The basic idea is the modulation of the stator winding currents to achieve positioning and rotary forces. Shaft deviations smaller than 0.5 mm at speeds of 4000 rpm are reached during the initial laboratory tests
Keywords :
induction motors; machine theory; stators; bearingless induction motor system; four-pole machine; induction machines; positioning forces; rotary forces; shaft deviations; standard windings; stator winding currents; two-phase machine; Control systems; Induction machines; Induction motors; Machine windings; Magnetic levitation; Mechanical bearings; Shafts; Stator windings; Steady-state; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
