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Hybrid excitation type flux reversing motor with asymmetric stator poles

A hybrid excitation and magnetic flux reversal technology, applied in the direction of magnetic circuits, synchronous machines, electric components, etc., can solve the problems of limited magnetic field weakening capability and low speed regulation range, achieve high torque density and expand the field regulation range , The effect of increasing the speed range

Active Publication Date: 2020-02-21
SOUTHEAST UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to solve the problem that the speed range of the traditional flux inversion permanent magnet motor is not high and the field weakening capability is limited, the present invention provides a hybrid excitation flux inversion motor with asymmetric stator poles

Method used

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  • Hybrid excitation type flux reversing motor with asymmetric stator poles
  • Hybrid excitation type flux reversing motor with asymmetric stator poles
  • Hybrid excitation type flux reversing motor with asymmetric stator poles

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with examples. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will modify various equivalent forms of the present invention. All fall within the scope defined by the appended claims of this application.

[0025] Such as figure 1 As shown, the hybrid excitation type magnetic flux reversal motor with asymmetric stator poles of this embodiment includes a stator 1, a rotor 2, a three-phase armature winding 3, a single-phase excitation winding 4, and a non-magnetic rotating shaft 5. The stator 1 and the rotor 2 are both salient pole structures, the rotor is fixed on a non-magnetic rotating shaft, and the stator is located outside the rotor. The rotor 2 includes rotor teeth 2.1 and a rotor yoke 2.2. The rotor yoke is fixed on a non-magnetic rotating sh...

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Abstract

The invention discloses a hybrid excitation type flux reversing motor with asymmetric stator poles. The motor comprises a stator, a rotor, three-phase armature windings, single-phase excitation windings, and a non-magnetic rotating shaft. The rotor comprises rotor teeth and a rotor yoke. The rotor yoke is fixed on the non-magnetic rotating shaft. The rotor teeth are uniformly arranged along the circumferential direction of the rotor yoke. The stator is positioned outside the rotor teeth of the rotor, and a certain gap is formed between the stator and the rotor teeth. The stator comprises a stator yoke, stator armature teeth, stator excitation teeth, and permanent magnets. The stator armature teeth and the stator excitation teeth are alternately arranged in the circumferential direction ofthe stator, and two permanent magnets with the same polarity are arranged at the lower end of each stator armature tooth and located on the two sides of a stator armature tooth iron core. The three-phase armature windings are wound around the stator armature teeth, and the single-phase excitation windings are wound around the stator excitation teeth. According to the invention, a doubly salient structure is adopted, and the motor has a simple structure and strong robustness and is suitable for AC brushless operation. Meanwhile, because of the introduction of hybrid excitation, the air gap fluxcan be adjusted, and the speed range of the motor is improved.

Description

Technical field [0001] The invention relates to a hybrid excitation motor, in particular to a hybrid excitation type magnetic flux reverse motor with asymmetric stator poles, belonging to the technical field of permanent magnet motors. Background technique [0002] Traditional Permanent Magnet Synchronous Machine (PMSM) has the advantages of high power density, high efficiency, reliable operation and strong overload capacity due to the use of rare earth permanent magnet materials (such as neodymium iron boron), which is an important development of the motor discipline direction. And with the development of rare earth permanent magnet materials and power electronics technology, PMSM has been widely used in various fields of aerospace, national defense, industrial and agricultural production, and daily life. [0003] However, the traditional permanent magnet synchronous motor itself has a more serious problem. Its air gap magnetic field cannot be adjusted. It mainly relies on the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/04H02K1/14H02K1/24H02K21/02
CPCH02K1/146H02K1/24H02K21/028H02K21/04
Inventor 阳辉刘杨阳林鹤云
Owner SOUTHEAST UNIV
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