Variable Speed Direct Drive Induction Motors Levitated by Active Magnetic Bearings for Oil&Gas Compression Services

The purpose of this paper is to present on one hand a state of the art of innovations relating to new electrical architectures for driving high power compressors using induction motor and shaft line levitation with active magnetic bearings, and the other hand, to share return of experience on how to conduct validation tests of magnetically levitated induction rotors in high-power machines.