Synchronous reluctance bearingless motors
Osamu Ichikawa
Since there are no rotor windings or permanent magnets the synchronous reluctance machine can be used for high-speed applications including operation at high temperature. Synchronous reluctance machines are also inherently low cost (for the same reasons), which makes them attractive in many applications.
In this chapter, synchronous reluctance bearingless motors are introduced and their principles, physical structure and a compensator structure are described. In these machines, the unbalanced magnetic pull due to rotor eccentricity has to be considered in order to realize stable and robust magnetic suspension. Hence compensation of the suspension force (which is proportional to the ...
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