Mixed excitation flux switching motor

A technology of magnetic flux switching motor and hybrid excitation, applied in synchronous machine parts, magnetic circuit static parts, magnetic circuit rotating parts, etc., can solve the problem of reducing air gap magnetic density, increasing copper consumption, power density, torque and efficiency reduction, to achieve the effect of high efficiency, easy processing and strong load capacity

Inactive Publication Date: 2015-04-22
SHANGHAI DIANJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this will inevitably reduce the air gap magnetic density, power density, torque and efficiency will be reduced
If it is necessary to incre

Method used

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  • Mixed excitation flux switching motor
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Embodiment Construction

[0021] In order to describe the technical solution of the above invention in more detail, specific examples are listed below to demonstrate the technical effect; it should be emphasized that these examples are used to illustrate the present invention and not limit the scope of the present invention.

[0022] The present invention provides a hybrid excitation flux switching motor, such as figure 1 As shown, it includes a stator and a rotor 20. Several salient poles 21 are evenly distributed on the rotor 20. The stator includes 12 H-shaped iron cores 11, 12 tangentially magnetized permanent magnets 12, armature coils 30 and excitation coil 40, the H-shaped iron cores 11 and the permanent magnets 12 are alternately arranged, and the magnetization directions of the two adjacent permanent magnets 12 are opposite ( figure 1 The direction shown by the middle white arrow), the excitation coil 40 is wound on the yoke magnetic bridge 13 of the H-shaped iron core 11, and the excitation c...

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Abstract

The invention relates to a mixed excitation flux switching motor which comprises a stator and a rotor, wherein multiple salient poles are uniformly distributed on the rotor; the stator comprises 12 H-shaped iron cores, 12 tangentially magnetizing permanent magnets, armature windings and exciting windings; the H-shaped iron cores and the permanent magnets are alternatively arranged; the magnetizing directions of two adjacent permanent magnets are opposite to each other; the exciting winding is wound on yoke retained magnetic bridges of the H-shaped iron cores; the exciting current directions applied by the exciting windings on two adjacent yoke retained magnetic bridges are opposite to each other; and each armature winding is arranged a stator pole consisting of two adjacent H-shaped iron cores and the sandwiched permanent magnet. According to the mixed excitation flux switching motor disclosed by the invention, the advantages of a flux switching permanent magnet motor are remained, extra copper consumption is not needed, the maximum gap flux density, torque and the like can be obtained, and the switching motor is good in adjustable flux performance and easy to process.

Description

technical field [0001] The invention relates to the field of motors, in particular to a hybrid excitation magnetic flux switching motor. Background technique [0002] The permanent magnet steel and armature winding of the flux switching permanent magnet motor are located on the stator, and there is neither winding nor permanent magnet on the rotor. It has simple structure, reliable operation, easy heat dissipation, and has high power density, high efficiency, and load It has the characteristics of strong ability and high sinusoidal back EMF, so it is considered to be a structure most likely to replace the rotor type permanent magnet motor. However, since only the permanent magnets are excited, its magnetic adjustment ability is limited. Therefore, some people have studied the electric excitation flux switching motor. Although the magnetic adjustment ability is improved, its efficiency and power density are low. Combining the advantages and disadvantages of both, the hybrid ...

Claims

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Application Information

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IPC IPC(8): H02K21/04H02K1/17H02K1/24H02K3/28
CPCH02K1/17H02K1/24H02K3/28H02K21/04
Inventor 李健王爱元顾春阳
Owner SHANGHAI DIANJI UNIV
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