Doubly salient permanent magnet synchronous motor with unequally spaced stator poles

A technology for permanent magnet synchronous motors and stator poles, which is applied in the direction of synchronous machine components, magnetic circuits, electromechanical devices, etc., and can solve problems such as inability to start in both directions, low output torque of the motor, and increasing the effective area of ​​the slot between the stator poles. Achieve the effects of simplifying product structure, small torque ripple, improving fault tolerance and reliability

Active Publication Date: 2016-09-07
HUAZHONG UNIV OF SCI & TECH
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a double salient pole permanent magnet synchronous motor with unequal spacing between stator poles, in which through the research and design of the specific structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Doubly salient permanent magnet synchronous motor with unequally spaced stator poles
  • Doubly salient permanent magnet synchronous motor with unequally spaced stator poles
  • Doubly salient permanent magnet synchronous motor with unequally spaced stator poles

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] figure 1 It is a schematic structural diagram of a 4 / 6 (number of stator poles / number of rotor poles) doubly salient permanent magnet synchronous motor with uniform distribution of stator poles in the prior art. The main difference between the motor structure of the present invention and the motor structure in which the stator poles are evenly distributed in the prior art is that the stator ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of doubly salient permanent magnet synchronous motors and discloses a doubly salient permanent magnet synchronous motor with unequally spaced stator poles. The doubly salient permanent magnet synchronous motor comprises a stator, a rotor, a permanent magnet, an armature winding and a rotating shaft, wherein the rotor is arranged in the stator and rotates relative to the stator; the rotating shaft is arranged in the rotor and rotates along with the rotor; the permanent magnet is symmetrically arranged at a yoke part of the stator and provides excitation for the air-gap field of the motor; the armature winding is coiled on the stator poles of the stator, and after the armature winding is energized, the magnetic field of the armature winding interacts with the magnetic field of the permanent magnet to rotate the rotor. Through the doubly salient permanent magnet synchronous motor, a problem that the motor cannot be started in a bidirectional way in the prior art is solved, and the stator poles are unequally spaced, so that the output torque is improved, and furthermore, through superposition on a multi-module structure, the output torque can be superposed, so that the toque pulsation is reduced, and the fault tolerance and the reliability are improved.

Description

technical field [0001] The invention belongs to the field of double salient pole permanent magnet synchronous motors, and more specifically relates to a double salient pole permanent magnet synchronous motor with unequal spacing between stator poles. Background technique [0002] In recent years, doubly salient pole motors in which the stator poles and rotor poles are salient pole structures have been widely studied. Doubly salient pole motors can be divided into doubly salient permanent magnet synchronous motors and switched reluctance motors according to whether there are permanent magnets. Compared with the switched reluctance motor, the pole permanent magnet synchronous motor only adds permanent magnets to the stator, so that a higher output torque can be obtained. [0003] Switched reluctance motors are divided into two types: multi-phase switched reluctance motors and single-phase switched reluctance motors. The multi-phase switched reluctance motor has the advantages...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K1/17H02K1/14H02K1/24H02K21/02
CPCH02K1/146H02K1/17H02K1/24H02K21/02
Inventor 叶才勇何明杰徐伟
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap