Three degrees of freedom AC mixing magnetic bearing
A hybrid magnetic bearing and degree of freedom technology, applied in the field of electric transmission control equipment and electric transmission equipment, can solve the problems of difficult to improve control performance, large loss, complex control, etc., to improve passive suspension ability, simple control, and reduce the number of land Effect
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[0013] Figure 1 is a three-dimensional structural schematic diagram of the three-free AC hybrid magnetic bearing of the present invention. The stator in the figure is divided into two parts, axial and radial, which are made of laminated silicon steel sheets. The radial direction is a three-pole structure with three excitations. The winding, the rotor sheet end and the axial stator part are respectively added with two aluminum sheets inside and outside to improve the mechanical strength of the sheet axial stator and effectively reduce the magnetic flux leakage; Improve the mechanical strength of the thin section of the axial rotor, reduce magnetic flux leakage, and further reduce the aspect ratio of the thin section, and improve the passive suspension capability.
[0014] Its working principle is shown in Figure 2. In Figure 2(a), the rotor is at flux Φ a 、Φ b and Φ c Under the action, it is in a balanced position. If the rotor is biased to the positive direction of x by the...
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