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Magnetic flux modulated composite motor in parallel hybrid excitation structure

A technology of magnetic flux modulation and mixed excitation, applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of small output torque, low power factor, etc., achieve the effect of improving overload capacity, high electric excitation efficiency, and realizing brushless

Active Publication Date: 2015-08-26
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hybrid excitation motor overcomes the shortcomings of permanent magnet motor magnetic field adjustment and low power factor of electric excitation motor at the same time, so that the motor has the advantages of small size, compact structure, high power factor, convenient magnetic field adjustment, etc., but still has the problem of small output torque

Method used

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  • Magnetic flux modulated composite motor in parallel hybrid excitation structure
  • Magnetic flux modulated composite motor in parallel hybrid excitation structure
  • Magnetic flux modulated composite motor in parallel hybrid excitation structure

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specific Embodiment approach 1

[0011] Specific implementation mode 1. Combination Figure 1 to Figure 3 Describe this specific embodiment, the magnetic flux modulation composite motor of the parallel hybrid excitation structure described in this specific embodiment includes an outer stator 1, a permanent magnet inner stator 5, an electric excitation inner stator 2, a keyway 8, an excitation winding 3, an electric The armature winding 4, the permanent magnet 6 and the magnetic ring rotor 7, the outer stator 1 is fixed on the motor casing, the armature winding 4 is wound on the outer stator 1, the permanent magnet inner stator 5 and the electric excitation inner stator 2 They are respectively fixed on the left and right sides of the motor shaft and separated by an air gap. The permanent magnet 6 is fixed on the core of the permanent magnet inner stator 5, the excitation winding 3 is wound on the iron core of the electric excitation inner stator 2, and the magnetic ring rotor 7 is located on the inner and outer...

specific Embodiment approach 2

[0016] Embodiment 2. The difference between this embodiment and the parallel hybrid excitation structure magnetic flux modulation composite motor described in Embodiment 1 is that the permanent magnet inner stator 5 adopts a built-in tangential magnetic steel structure or a surface-mounted Type magnetic steel structure is realized.

specific Embodiment approach 3

[0017] Specific embodiment three. The difference between this specific embodiment and the magnetic flux modulation compound motor with parallel hybrid excitation structure described in specific embodiment two is that the number of pole pairs of the permanent magnet inner stator 5 is the same as that of the electric excitation inner stator 2 The number of pole pairs is the same.

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Abstract

The invention provides a magnetic flux modulated composite motor in a parallel hybrid excitation structure, and relates to the field of magnetic flux modulated composite motors. Through combining a permanent magnetic motor with a conventional electro-magnetic motor, motor low-speed high-torque output is realized while a conventional motor realizes volume reduction and power factor increasement, and an objective that an air-gap field can be flexibly adjusted is realized. An outer stator is fixed on a motor housing, an armature winding is winded on the outer stator. A permanent magnetic inner stator and an electro-magnetic inner stator are respectively fixed on the left side and the right side of a motor rotating shaft, and are separated by an air gap. A permanent magnet is fixed on a permanent magnetic inner stator iron core. A field winding is winded on an electro-magnetic inner stator iron core. A field regulating ring rotor is between the inner stator and the outer stator, and is fixedly arranged on the motor rotating shaft through a key groove. The field regulating ring rotor is separated from the inner stator and the outer stator through air gaps. The magnetic flux modulated composite motor combines characteristics of a parallel hybrid excitation motor and a novel magnetic gear, and can modulate air gap flux, so as to obtain low-speed high-torque performance.

Description

technical field [0001] The invention relates to the field of magnetic flux modulation composite motors. Background technique [0002] In recent years, due to the development of rare earth permanent magnet materials with high remanence density, high coercive force, and high magnetic energy product, compared with traditional electric excitation motors, permanent magnet motors have small volume and simple structure. It has the advantages of convenient maintenance, high efficiency, high power factor, and high power density in terms of performance. However, because the permanent magnet motor uses a single permanent magnet for excitation, it is difficult to adjust the magnetic field. The traditional electric excitation motor can easily adjust the air gap magnetic field by adjusting the DC or AC excitation current, but its structure is complex, the output torque is small, and the power factor is low. [0003] The main feature of the hybrid excitation motor is that the magnetic fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00
CPCH02K16/00
Inventor 谢颖张岩连国一王泽武鑫
Owner HARBIN UNIV OF SCI & TECH
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