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A h-type iron core hybrid excitation flux switching motor

A magnetic flux switching motor and mixed excitation technology, which is applied to synchronous machines, electrical components, electromechanical devices, etc., to achieve the effects of improving utilization, increasing output power, and reducing reluctance

Active Publication Date: 2018-01-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor aims at the problem that the excitation current utilization rate of the existing hybrid excitation motor is not high, and the injection polarity of the excitation current ensures that the magnetic flux directions generated by the permanent magnetic field and the electric excitation magnetic field in each H-shaped iron core are opposite in the common magnetic circuit , the reluctance of the public magnetic circuit is reduced, which improves the utilization rate of the excitation current, the no-load back EMF and power density of the motor

Method used

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  • A h-type iron core hybrid excitation flux switching motor
  • A h-type iron core hybrid excitation flux switching motor
  • A h-type iron core hybrid excitation flux switching motor

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Embodiment Construction

[0043] Below in conjunction with the accompanying drawings, a kind of H-type iron core hybrid excitation flux switching motor proposed by the present invention will be described in detail:

[0044] Such as figure 1 and figure 2 As shown, a H-shaped iron core hybrid excitation flux switching motor, the H-shaped iron core hybrid excitation flux switching motor is composed of a stator, a rotor, and a short-circuit permanent magnet, wherein the stator is composed of an H-shaped iron core, a guide Magnetic bridge, excitation slot, excitation coil, armature slot, armature coil;

[0045] There are six H-shaped iron cores, which are the first to sixth H-shaped iron cores;

[0046] There are six magnetically conductive bridges, namely the first to sixth magnetically conductive bridges;

[0047] There are six armature slots, namely the first to sixth armature slots;

[0048] There are six armature coils, namely the first to sixth armature coils;

[0049] There are six excitation s...

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Abstract

The invention provides an H-shaped iron core hybrid excitation flux switching motor. In the H-shaped stator core adopted by the motor, a common magnetic circuit of the permanent magnet magnetic field and the field winding magnetic field is constructed, and the polarity of the exciting current and the excitation direction of the permanent magnet are set so that the permanent magnet magnetic field in the public magnetic circuit and the The fields of the field windings are opposite. In the magnetic flux switching motor proposed by the present invention, the reluctance of the common magnetic circuit is reduced, so that the reluctance of the magnetic circuit of the excitation winding is reduced, and the utilization rate of the excitation current, the efficiency of the system, and the ratio of torque to copper consumption are improved. The output power of the motor is increased under the premise that the excitation loss remains unchanged.

Description

technical field [0001] The invention belongs to the field of hybrid excitation motors, in particular to an H-shaped iron core hybrid excitation magnetic flux switching motor. Background technique [0002] Aviation generator is one of the important parts of aircraft, it should have the following characteristics: [0003] (1) Simple structure and high reliability; [0004] (2) Strong magnetic field adjustment ability, easy to realize fault demagnetization; [0005] (3) High power density; [0006] (4) High efficiency. [0007] The switched reluctance motor has a simple and reliable motor structure, but it is a self-excited motor and works in a half-cycle state. When the switched reluctance motor is working in the power generation state, it is necessary to know the accurate rotor position information. The introduction of the position sensor reduces the reliability of the system and increases the size and cost. At the same time, the converter needs to use a fully-controlled...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/38
Inventor 王宇刘慧邓智泉
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS