Double h-shaped stator core double rotor hybrid excitation type axial flux switching permanent magnet motor

A technology of mixed excitation and axial flux, applied in the direction of electromechanical devices, electrical components, magnetic circuit static parts, etc., can solve the problem that the adjustment range of the air gap magnetic field is not wide enough, achieve shortening of the main magnetic circuit of the motor, and strong fault tolerance , the effect of reducing dosage

Active Publication Date: 2019-08-16
XIAN UNIV OF TECH
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Problems solved by technology

[0008] The purpose of the present invention is to provide a dual-H-shaped stator core dual-rotor hybrid excitation axial flux switching permanent magnet motor, which solves the air gap magnetic field adjustment range of the disc hybrid excitation flux switching permanent magnet motor existing in the prior art not wide enough

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  • Double h-shaped stator core double rotor hybrid excitation type axial flux switching permanent magnet motor
  • Double h-shaped stator core double rotor hybrid excitation type axial flux switching permanent magnet motor
  • Double h-shaped stator core double rotor hybrid excitation type axial flux switching permanent magnet motor

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] The double H-shaped stator core double-rotor hybrid excitation type axial flux switching permanent magnet motor of the present invention has the structure as follows figure 1 As shown, the dual-rotor / single-stator axial structure is adopted, consisting of two outer rotors and one inner stator, including the first rotor 1, stator 2, and second rotor 3 coaxially installed, and the stator 2 is located between the first rotor 1 and the Between the second rotor 3, there is an air gap between the stator 2 and the first rotor 1 and the second rotor 3 respectively, the stator 2 and the first rotor form a first air gap 10, and the stator 2 and the second rotor 3 form a second air gap. The air gap 11, the first rotor 1, the second rotor 3 and the stator 2 are all salient pole structures.

[0036] The stator 2 includes 6 double H-shaped stator c...

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Abstract

The invention discloses a dual H-shaped stator core and dual rotor mixed excitation type axial flux-switching permanent magnet motor. The axial flux-switching permanent magnet motor comprises a first rotor, a stator and a second rotor which are coaxially arranged, wherein the stator is positioned between the first rotor and the second rotor; and gaps are reserved between the stator and the first rotor as well as between the stator and the second rotor respectively. The axial flux-switching permanent magnet motor is short in axial length of the motor and compact in structure, so that the power density and torque density are improved; an exciting current is applied through an exciting winding to adjust an air-gap field, the air-gap field is flexibly adjusted, and the constant-power operation range of the motor is greatly expanded; the intermediate magnetism isolating capacity set by double H-shaped stator units is high, and the fault-tolerant fault capacity is high.

Description

technical field [0001] The invention belongs to the technical field of hybrid excitation synchronous motors, in particular to a double H-shaped stator core double rotor hybrid excitation type axial flux switching permanent magnet motor. Background technique [0002] In the field of motors, permanent magnet motors have the advantages of simple structure, small size, light weight and high efficiency, and are widely used in industrial fields. In systems such as electric traction, spindle drive, and wind power generation, the motor is required to operate over a wide speed range. Above the base speed, the permanent magnet synchronous motor increases the speed through the weak magnetic field of the d-axis current, but the permanent magnet reluctance is large, and the air gap magnetic field is difficult to adjust; on the other hand, the excessive d-axis current may cause permanent magnet demagnetization, permanent magnet Motors are difficult to run over a wide speed range. Electr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/17H02K1/14
CPCH02K1/14H02K1/17H02K16/02
Inventor 赵纪龙景梦蝶孙向东
Owner XIAN UNIV OF TECH
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