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Double-stator double-power-winding magnetic concentrating hybrid permanent magnet memory motor

A hybrid permanent magnet and memory motor technology, applied in the direction of magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., can solve the difficulty in the realization of the excitation current control system, increase the complexity of electromagnetic characteristics, and the magnetic flux is easy to interact with each other. Coupling and other problems, to achieve the effect of large torque output, high starting torque, easy heat dissipation

Inactive Publication Date: 2015-12-09
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the existing hybrid excitation motor has two magnetic potential sources at the same time, and the magnetic fluxes of the two are easy to couple and influence each other, which increases the complexity of the electromagnetic characteristics, and has a low torque density. Increase the excitation loss and make it difficult to realize the excitation current control system

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  • Double-stator double-power-winding magnetic concentrating hybrid permanent magnet memory motor

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment mode, the patent of the present invention is described in further detail:

[0018] Such as figure 1 As shown, the direction of the arrow indicates the magnetization direction of the permanent magnet; the present invention discloses a double-stator double-power winding magnetism-concentrating hybrid permanent magnet memory motor with high power density. The outer stator 1, the rotor 2 and the inner stator 3, the motor is a double-layer stator structure, and the outer stator 1 and the inner stator 3 are asymmetrically arranged, and are equipped with power windings, and the rotor 2 is a hollow cup structure;

[0019] The outer stator 1 is arranged outside the rotor 2 and includes armature core teeth 1.1 , an annular stator yoke 1.2 and an armature winding 4 . The armature core teeth 1.1 are arranged between the stator yoke 1.2 and the rotor, and the adjacent adjacent armature core teeth 1.1 are provided with a...

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Abstract

The invention discloses a double-stator double-power-winding magnetic concentrating hybrid permanent magnet memory motor. The motor comprises an external stator, a rotor and an internal stator. The internal and external stators are coaxially arranged in a sleeving way from inside to outside. The external stator comprises armature iron core teeth, stator yokes and first armature windings which are arranged on the armature iron core teeth. The internal stator comprises an internal stator iron core provided with two internal slots, Nd-Fe-B permanent magnets, Al-Ni-Co permanent magnets, second armature windings which are arranged in the first internal slot of the internal stator, and pulse magnetic adjusting windings which are arranged in the second internal slot. The two types of co-excitation permanent magnets are parallel in space and are arranged in a magnetic concentrating tangential magnetizing way. The weakness of relatively low torque density of a conventional signal stator structure can be solved, high power density is realized via arrangement of two sets of double-stator power windings and internal stator hybrid permanent magnets, and pulse current is applied to adjust magnetizing level and direction of the permanent magnets so that motor magnetic field high-efficiency adjustment is realized and rotating speed operation range is enhanced.

Description

technical field [0001] The invention relates to an adjustable magnetic flux permanent magnet motor, in particular to a dual-stator hybrid permanent magnet memory motor. Background technique [0002] In the field of motors, due to the inherent characteristics of ordinary permanent magnet materials (such as NdFeB), the air gap magnetic field in the motor is basically kept constant, and the speed regulation range is very limited when operating as an electric motor. The application of wide-speed adjustable direct drive applications such as electric vehicles and aerospace is limited to a certain extent. Therefore, the adjustable flux permanent magnet motor aimed at realizing the effective adjustment of the air gap magnetic field of the permanent magnet motor has always been a hot spot and difficulty in the field of motor research. . Traditional PMSMs use direct-axis current for field-weakening speed regulation, but it is difficult to achieve high-efficiency field regulation due ...

Claims

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Application Information

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IPC IPC(8): H02K16/04H02K1/17
Inventor 阳辉林鹤云诸自强房淑华黄允凯
Owner SOUTHEAST UNIV
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