Rotor permanent magnet type birotor axial magnetic field hybrid excitation flux switching motor
A magnetic flux switching motor and axial magnetic field technology, applied in the direction of magnetic circuits, electric components, electrical components, etc., can solve the problems of high loss, low heat dissipation efficiency, poor overload capacity, etc., and achieve enhanced torque capacity and improved torque Density and power density, the effect of improving stability
Active Publication Date: 2021-03-09
SOUTHEAST UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a rotor permanent magnet double-rotor axial magnetic field hybrid excitation flux switching motor, which solves the problems of high loss, poor overload capacity and low heat dissipation efficiency of the stator permanent magnet hybrid excitation motor in the prior art.
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Embodiment Construction
[0035] to combine figure 1 , a rotor permanent magnet dual-rotor axial magnetic field hybrid excitation flux switching motor, comprising a coaxially installed first rotor 1, a second rotor 2, a stator located between the two rotors and with an air gap between the rotors 3 and permanent magnets 4, the first rotor 1, the second rotor 2 and the stator 3 are salient pole topological structures; the first rotor 1 and the second rotor 2 are respectively located on both sides of the stator 3 and arranged symmetrically with respect to the stator 3, each The rotor includes rotor teeth 5 and fixed disks 6; the rotor teeth 5 are fixed on the fixed disks 6; Pivot winding 9 and field winding 10 wound on stator core 7;
[0036] A plurality of stator cores 7 , armature windings 9 and field windings 10 are provided on both sides of the spacer disk 8 .
[0037] The number of rotor teeth 5 on the first rotor 1 and the second rotor 2 is (12±k)n, and the number of stator cores 7 on the stator 3...
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The invention discloses a rotor permanent magnet type birotor axial magnetic field hybrid excitation flux switching motor which comprises a first rotor, a second rotor, a stator and permanent magnets,wherein the first rotor, the second rotor and the stator are of a salient pole topological structure, and the first rotor and the second rotor are located on the two sides of the stator respectivelyand are symmetrically arranged relative to the stator. Each of the first rotor and the second rotor comprises rotor teeth and a fixed disc, and the permanent magnets are fixed on the rotor teeth. Thestator comprises a magnetic isolation disc, stator iron cores fixed on two sides of the magnetic isolation disc, armature windings wound on the stator iron cores and excitation windings wound on the stator iron cores. The axial length of the motor is short, the structure is compact, and the torque density and the power density of the motor are improved; the permanent magnet is placed on the rotor,stator magnetic circuit saturation is relieved, stator winding groove space is increased, motor harmonic loss and winding copper loss are reduced, the motor constant-power speed regulation range is widened, and motor efficiency is improved.
Description
technical field [0001] The invention belongs to the technology of hybrid excitation motors, in particular to a rotor permanent magnet double-rotor axial magnetic field hybrid excitation flux switching motor. Background technique [0002] The permanent magnet flux switching motor usually adopts a doubly salient pole structure. The armature winding and the permanent magnet are located on the stator, and the rotor has neither winding nor permanent magnet. The structure is simple, so that the motor has high power density, high torque density, Efficiency and other advantages. Due to the inherent characteristics of permanent magnets, it is difficult to adjust the constant magnetic field of the air gap of the motor, resulting in a narrow range of speed regulation of the motor, which limits its application in the field of constant voltage power generation and wide range speed regulation drive. Therefore, the permanent magnet flux switching motor internal air gap is realized. The ef...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K16/02H02K1/14H02K1/16H02K1/27H02K1/24H02K3/28H02K3/18H02K1/18
CPCH02K16/02H02K1/148H02K1/143H02K1/165H02K1/27H02K1/2793H02K1/24H02K3/28H02K1/182H02K2213/03H02K2201/03H02K2201/12
Inventor 屠逸翔林克曼林明耀
Owner SOUTHEAST UNIV