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Halbach array permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and array, which is applied in the direction of synchronous machine components, magnetic circuits, electric components, etc., and can solve problems such as air gap magnetic field distortion not considered

Inactive Publication Date: 2020-03-31
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing studies on the Halbach permanent magnet array of permanent magnet synchronous motors have not considered the air gap magnetic field distortion caused by the angle between the magnetization directions of two adjacent permanent magnets.

Method used

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Embodiment Construction

[0025] The following specific embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the scope of protection of the present invention is not limited to the following specific embodiments. .

[0026] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present invention.

[0027] Such as image 3 As shown, an embodiment of the Halbach array permanent magnet synchronous motor of the present invention includes a stator 1 , a rotor 2 , a Halbach permanent magnet array 4 , a rotating shaft 5 and an armature winding 6 . The rotor 2 is fixed on the rotating shaft 5 a...

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Abstract

The invention discloses a Halbach array permanent magnet synchronous motor which comprises a stator (1), a rotor (2), Halbach array permanent magnets (4), a rotating shaft (5) and armature windings (6). The rotor (2) is positioned in the stator (1)and fixed on the rotating shaft (5), the Halbach array permanent magnets (4) are arranged on the rotor (2), the rotor (2) and the stator (1) are arranged between the rotor (2) and the stator (1), the armature winding (6) is arranged on the stator (1), and the same partition (7) is arranged between two adjacent permanent magnets of the Halbach array permanent magnets (4). According to the invention, no-load air gap magnetic field distortion of adjacent permanent magnet blocks of the Halbach array permanent magnet can be reduced, and the torque ripple of the motor is reduced.

Description

technical field [0001] The invention relates to a motor, in particular to a Halbach array permanent magnet synchronous motor. Background technique [0002] The Halbach permanent magnet array refers to the arrangement of permanent magnets with different magnetization directions according to a certain rule, which can converge the magnetic force lines on one side of the magnet and weaken the magnetic force lines on the other side, so as to obtain an ideal unilateral magnetic field permanent magnet arrangement. The Halbach array motor is a permanent magnet motor that uses Halbach permanent magnet arrays to form a working magnetic field, which can reduce the harmonic content of the no-load air gap magnetic field, improve the utilization rate of permanent magnets, and increase the power density of the motor, so it is obtained in permanent magnet motors. a wide range of applications. [0003] There are mainly two types of single-layer Halbach permanent magnet array structures in c...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K21/02
CPCH02K1/278H02K21/02H02K2213/03
Inventor 刘晓万丹丹黄守道
Owner HUNAN UNIV
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