Axial permanent-magnet bias hybrid magnetic bearing switch reluctance motor

A technology of switched reluctance motor and hybrid magnetic bearing, which is applied in the direction of electrical components and electromechanical devices, can solve the problems of increasing the complexity of suspension control and system cost, expanding the demand for power devices, reducing system reliability, etc., and achieving easy control strategy, optimal control strategy, and the effect of high slot fullness

Active Publication Date: 2014-10-15
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For a single-winding bearingless switched reluctance motor with a 12/8 structure, each phase needs to independently control the windings on the four stator teeth, that is, each phase needs a

Method used

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  • Axial permanent-magnet bias hybrid magnetic bearing switch reluctance motor
  • Axial permanent-magnet bias hybrid magnetic bearing switch reluctance motor
  • Axial permanent-magnet bias hybrid magnetic bearing switch reluctance motor

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Embodiment Construction

[0024] The technical scheme of an axial permanent magnet bias hybrid magnetic bearing switched reluctance motor of the present invention will be described in detail below in conjunction with the accompanying drawings:

[0025] Such as figure 1 As shown, a schematic structural diagram of an axial permanent magnet bias hybrid magnetic bearing switched reluctance motor embodiment 1 of the present invention, wherein, 1 is a torque stator, 2 is a torque rotor, 3 is a levitation force stator, 4 5 is the suspension force rotor, 6 is the permanent magnet, 7 is the magnetic isolation stator, 8 is the magnetic isolation rotor, and 9 is the winding;

[0026] The motor stator is composed of a torque stator, a magnetic isolation stator, a levitation force stator, and a guide disk; Between the levitation force stator; the guide disk is located outside the levitation force stator, and a permanent magnet is placed between the guide disk and the levitation force stator; the permanent magnet i...

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Abstract

The invention provides an axial permanent-magnet bias hybrid magnetic bearing switch reluctance motor which comprises a torque stator, a torque rotor, a suspension force stator, a magnetic disc, a suspension force rotor, a permanent magnet, a non-magnetic stator, a non-magnetic rotor and windings, wherein the torque stator, the suspension force stator and the non-magnetic stator are axially superposed to form a whole; the non-magnetic stator is arranged between the torque stator and the suspension force stator; one winding is wound on each tooth combined by the three stators; the permanent magnet is placed between the suspension force stator and the magnetic disc, and axially magnetizes; the torque rotor, the suspension force rotor and the non-magnetic rotor are axially superposed together; the magnetic disc is in a disc structure or a salient pole structure same as the suspension force stator; the suspension force rotor is in a cylindrical structure; the number of teeth of the torque stator, the suspension force stator and the non-magnetic stator is twelve; pole arcs are equal; the number of teeth of the torque rotor and the non-magnetic rotor is eight; and pole arcs are equal. According to the motor, only the permanent magnet provides bias magnetic flux, and the motor is great in radial bearing capacity, few in power switching tube and low in control circuit cost.

Description

technical field [0001] The invention belongs to the technical field of motors, and relates to an axial permanent magnet bias hybrid magnetic bearing switched reluctance motor. Background technique [0002] The bearingless switched reluctance motor is a new type of magnetic levitation motor developed at the end of the 20th century. The double-winding bearingless switched reluctance motor is to stack the levitation winding that generates the levitation force and the winding of the original switched reluctance motor on the stator of the motor. By controlling the current of the two sets of windings, it has the ability to rotate and self-levitate simultaneously, so that Achieve ultra-high-speed operation of the motor. The single-winding bearingless switched reluctance motor has the ability to rotate and self-suspend at the same time by controlling the current of a set of windings. Therefore, the single-winding bearingless switched reluctance motor is more versatile and practica...

Claims

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Application Information

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IPC IPC(8): H02K16/00
Inventor 刘泽远杨艳曹鑫邓智泉王世山
Owner NANJING UNIV OF POSTS & TELECOMM
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