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A rotor permanent magnet type hybrid excitation 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 rotating parts, etc., can solve the problems of large output torque ripple, achieve small output torque ripple, avoid demagnetization and short circuit problems , Improve the effect of torque density

Active Publication Date: 2020-02-14
XIAN UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor, which solves the problem of large output torque pulsation of the stator permanent magnet type disc hybrid excitation flux switching permanent magnet motor in the prior art question

Method used

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  • A rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor
  • A rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor
  • A rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention is a rotor permanent magnet hybrid excitation axial flux switching permanent magnet motor, such as figure 1 As shown, the dual stator / single rotor axial topology structure is adopted, including the first stator 1, the rotor 2, and the second stator 3 installed coaxially in sequence, and the first stator 1, the second stator 3 are all connected to the rotor 2 Both have air gaps, the first stator 1 and the second stator 3 are symmetrical about the rotor 2, and the double air gap symmetrical structure composed of double stators and single rotors can balance the axial magnetic force, and the outer circumference of the rotor 2 is equidistantly arranged Ten pairs of rotor poles 9 and ten AlNiCo permanent magnets 8, one AlNiCo permanent magnet 8 is arranged between each pair of rotor poles 9, and the polarities of the ad...

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Abstract

The invention discloses a rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor, and belongs to the field of hybrid excitation synchronous motors. The motor comprises a first stator, a rotor and a second stator arranged in a coaxial manner, the rotor is clamped between the first stator and the second stator, each stator is formed by six E-type iron cores, six centralized armature windings, and six centralized excitation windings, and the rotor is formed by ten pairs of rotor poles and ten aluminium-nickel-cobalt permanent magnets. According to the motor, theaxial length is short, the structure is compact, the size is small, and the power and torque densities can be increased; the aluminium-nickel-cobalt permanent magnets are arranged on the rotor so that the torque output capability is great, and the overload capability of the motor is improved; the torque ripple is small, the dynamic and steady-state performances of the system are enhanced, and theoperation is more stable; the reactance of armature reaction is low, an excitation magnetic field and a permanent magnetic field are in a parallel connection relation, and the magnetic adjustment isflexible and convenient; and the permanent magnets are located on the rotor so that a stator magnetic circuit is not easily saturated, and the constant-power speed regulation range of the motor is greatly extended.

Description

technical field [0001] The invention belongs to the technical field of hybrid excitation synchronous motors, in particular to a rotor permanent magnet hybrid excitation axial flux switching permanent magnet motor. Background technique [0002] At the European Conference on Power Electronics and Applications in 1997, French scholar E. Hoang proposed a stator permanent magnet three-phase 12 / 10 pole flux switching permanent magnet motor, which has attracted extensive attention from many scholars at home and abroad. The flux switching permanent magnet motor adopts a double salient pole structure. The armature winding and permanent magnet are placed on the stator. The rotor has neither winding nor permanent magnet. It has high power / torque density, high efficiency, flux linkage and back EMF. It has the advantages of high sine degree, simple and firm rotor structure, and easy heat dissipation. However, the magnetic field of flux switching permanent magnet motors is not easy to ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K1/27H02K1/14H02K3/28
CPCH02K1/14H02K1/27H02K3/28H02K16/04H02K2213/03
Inventor 赵纪龙全小伟景梦蝶孙向东
Owner XIAN UNIV OF TECH
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