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A disc-type dual-stator hybrid excitation motor

A hybrid excitation and double stator technology, applied to synchronous motors with stationary armatures and rotating magnets, electric components, magnetic circuit rotating parts, etc., can solve problems such as low reliability and complex structure, and improve reliability , Expand the range of speed regulation, improve the effect of magnetic field adjustment ability

Active Publication Date: 2018-08-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem: In view of the above problems, a disc-type dual-stator hybrid excitation motor based on magnetic field modulation is proposed, which solves the problems of complex structure and low reliability of the existing disc-type hybrid excitation motor; the magnetic flux of the core poles is changed through the excitation winding , to achieve flexible adjustment of the excitation magnetic field

Method used

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  • A disc-type dual-stator hybrid excitation motor
  • A disc-type dual-stator hybrid excitation motor
  • A disc-type dual-stator hybrid excitation motor

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Embodiment Construction

[0027] The present invention will be further explained below in conjunction with the accompanying drawings.

[0028] The design principle of the present invention is as follows: The disc-type double-stator hybrid excitation motor described in the present invention realizes hybrid excitation based on the principle of magnetic field modulation, and 2p are evenly arranged along the circumference on the annular disc-shaped rotor 1 A permanent magnet, and two permanent magnets with opposite polarities form a group with iron core poles at intervals, such as figure 2 shown. The excitation winding is located on the inner stator, and the corresponding alternating current is passed through to generate the excitation magnetic field. Since the permanent magnet base and the iron core pole interval made of non-magnetic materials face the excitation winding side, it is known that the magnetic permeability of the iron core is much greater than that of the base. The magnetic field lines gene...

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Abstract

The invention discloses a disc type double-stator hybrid excitation motor. According to the hybrid excitation motor designed in the invention, based on the principle of magnetic field modulation, the combination of a disc type permanent magnet motor and an electric excitation system is realized. The hybrid excitation motor has the characteristics of high power density, high moment density, a short axial size and a compact structure and also has the advantages of flexible adjustment of an excitation magnetic field and a wide speed regulation range, and thus the hybrid excitation motor can be applied to the field of electric vehicle hubs. The motor comprises two stators and one disc type rotor. An excitation winding and an armature winding are respectively arranged at the stators at two sides, and a permanent magnet pole and a core pole are distributed on the rotor. By using the magnetic field modulation technology, the permanent magnet on the rotor and the excitation winding on an inner stator generate a magnetic field same with an armature winding pole pair number at an external air gap, and a permanent magnet pole and an iron pole are uniformly distributed on the rotor. By using the magnetic field modulation technology, the permanent magnet on the rotor and the excitation winding on the inner stator generates a magnetic field same with the armature winding pole pair number at the external air gap, and thus the electromechanical energy conversion is realized. The back EMF waveform is improved through the design of a multi-phase structure and a three-layer fractional-slot integrated winding, and the reliability and fault tolerance of the motor are improved at the same time.

Description

technical field [0001] The invention belongs to the design field of permanent magnet motors, in particular to a disc-type dual-stator hybrid excitation motor. Background technique [0002] At present, the disk permanent magnet motor has been widely concerned in the field of drive and industrial application due to its unique advantages. It not only has the advantages of high power density and high torque density of the permanent magnet motor, but also has the short axial dimension of the disk motor. The advantages of compact structure and high utilization rate of silicon steel sheet make it have incomparable performance of radial magnetic field motor under the special installation space conditions. In addition, due to its structural characteristics, the disc permanent magnet motor has a small moment of inertia, easy off-line, and good heat dissipation conditions for the stator winding. At the same time, it can be made into a multi-air gap structure to further improve the outp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K21/24H02K1/12H02K1/27H02K3/28
CPCH02K1/12H02K1/2793H02K3/28H02K16/04H02K21/24H02K2201/03H02K2213/03
Inventor 樊英谭超
Owner SOUTHEAST UNIV
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