HYBRID MAGNETIC BEARING USING LORENTZ FORCE (VERSIONS) Russian patent published in 2017 - IPC F16C32/04 H02K7/09 

FIELD: machine engineering.

SUBSTANCE: difference in the first version of the hybrid magnetic bearing using Lorentz forces is that two control m-phase windings are introduced, placed one above the other, wherein the lower m-phase winding is made with a bevel, and the upper m-phase winding - without a bevel, a radial axial magnetic bearing on permanent magnets is mounted on the left end of the shaft, consisting of the inner and outer sets of radial magnetic rings arranged concentrically with respect to each other with an air gap, and an axial magnet ring mounted with a radial air gap relative to the shaft and an axial air gap with respect to the inner and outer sets of radial magnetic rings, and at the right end of the shaft a radial magnetic bearing on permanent magnets consisting of inner and outer sets of radial magnetic rings positioned concentrically with respect to each other an air gap, while the sets of internal permanent magnets are pressed into the shroud, which is made of electrically conductive material and functions as a passive damper. The difference in the second version of hybrid magnetic bearing using Lorentz forces is that at the left end of the shaft a left radial magnetic bearing on permanent magnets is installed, consisting of inner and outer sets of radial magnetic rings arranged concentrically with respect to each other with an air gap in which the annular winding is located, and on the right end of the shaft - the right radial magnetic bearing on permanent magnets, consisting of inner and outer sets of radial magnetic rings mounted concentrically relative to each other with an air gap in which an annular winding is placed. The sets of inner permanent magnets are pressed into the shroud, which is made of electrically conductive material and functions as a passive damper.

EFFECT: increasing the stability of rotor on hybrid magnetic bearings and its controllability, reducing the energy consumption for controlling the position of rotor.

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