A cylindrical rotor three-degree-of-freedom magnetic levitation switched reluctance motor

Abstract

The invention discloses a cylindrical rotor three-degree-of-freedom magnetic levitation switched reluctance motor, which includes a stator and a rotor inside the stator; the rotor includes a rotor core and a rotating shaft passing through the rotor core, and the outer circumference of the rotor core is provided with 12 equidistant intervals. The two rotor teeth are inserted at both ends of the rotor teeth with magnetic isolation aluminum sheets that do not penetrate the rotor core; the stator includes an axial stator core, a permanent magnet ring and a motor stator core, and the motor stator core is connected to the axial direction through the permanent magnet ring. The inner wall of the stator core is connected; the inner circumference of the motor stator core is provided with 3 suspension teeth and 3 torque cores at equal intervals, and the torque core is connected to the inner circumference of the motor stator core through a magnetic isolation aluminum block. The torque core is provided with a pair of torque teeth protruding toward the center of the circle; three-phase symmetrical suspension windings are wound on the suspension teeth, and torque windings are wound on the torque teeth, which are on both sides of the motor stator core and close to the The inner side of the axial stator core is provided with axial suspension windings connected in series.

Description

technical field [0001] The invention belongs to the technical field of magnetic levitation switched reluctance motors, in particular to a three-degree-of-freedom magnetic levitation switched reluctance motor with a cylindrical rotor. Background technique [0002] There are no permanent magnets and windings on the rotor of the magnetic levitation switched reluctance motor. It has the advantages of no friction and wear, simple structure, firmness, and high strength. It is easy to achieve high-speed operation and has great application prospects in high-speed applications. [0003] In order to realize the stable levitation operation of the rotor of the magnetic levitation switched reluctance motor, it is necessary to use a two-degree-of-freedom magnetic levitation switched reluctance motor, a radial two-degree-of-freedom magnetic bearing, an axial single-degree-of-freedom magnetic bearing or a radial-axial three-degree-of-freedom magnetic levitation bearing. The five-degree-of-f...

AI Technical Summary

Problems solved by technology

However, since the number of suspension poles is 4 and divided into two directions of x and y, the suspension force density is small, and two DC switching power amplifiers are required to drive the two-degree-of-freedom suspension, resulting in high power consumption and high system cost.

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