High speed motors on magnetic bearings for centrifugal compressors

The SKF permanent magnet high speed motor on magnetic bearings sets a new standard for compact, high energy efficiency, oil-free variable speed drives for centrifugal compressors up to the megawatt. The motor and bearings are designed for a wide operation range of the centrifugal compressor including surge occurrence. Energy savings above 10% are well achievable at full load as well as at part load, compared to traditional geared drive design and to volumetric compressors. SKF provides the complete system, i.e. the motor on magnetic bearings together with the electric control and power converter, to ensure the best match with the application.
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