Impact of stator integrated magnetic bearings on the behaviour of a squirrel-cage induction machine

In this paper, our aim is to replace the rolling bearings in an induction machine, by integrated magnetic bearings, there is many advantages using this kind of bearings: no more friction, then reduction of the friction and windage losses, higher running speed, improve lifetime etc,. However, the magnetic bearings need a complex electronic driver to be developed. Actually, those problems should be taken into account: reduce mechanical vibrations, compensate unbalances and shaft misalignments and fault control and detection.