Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Winding type asynchronous motor without bearing and manufacturing method thereof

A technology of asynchronous motor and manufacturing method, which is applied to asynchronous induction motors, control generators, and manufacture of motor generators, etc., can solve the problems that the rotor control cannot be decoupled, the rotor eccentricity control is complicated, etc., and achieves the effect of reducing the complexity of the solution.

Inactive Publication Date: 2015-02-18
STATE GRID ANHUI FENGTAI COUNTY POWER SUPPLY +1
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wound type bearingless asynchronous motor to solve the technical problem that the induced magnetic field of the torque winding and the suspension winding in the existing bearingless asynchronous motor cannot decouple the rotor control
[0004] Another object of the present invention is to provide a manufacturing method of a wound-type bearingless asynchronous motor, which solves the technical problem of complex rotor eccentric control in existing bearingless asynchronous motors

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
  • Winding type asynchronous motor without bearing and manufacturing method thereof
  • Winding type asynchronous motor without bearing and manufacturing method thereof
  • Winding type asynchronous motor without bearing and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] like figure 1 As shown, this embodiment includes torque windings and suspension windings installed in the stator slots, and the rotor windings installed in the rotor slots, the number of stator slots is 36, the number of rotor slots is 24, and the stator adopts three-phase rotation Torque winding, the number of poles of the torque winding of each phase is 4 (the number of pole pairs is 2), the stator also adopts three-phase suspension windings, the number of poles of each phase suspension winding is 2 (the number of pole pairs is 1), and the rotor uses Three-phase rotor winding, the number of poles of each phase rotor winding is 4 (the number of pole pairs is 2).

[0026] Slots parallel to the axis on the circumference of the stator and rotor are evenly distributed along the corresponding circumference.

[0027] The u-phase torque windings (u1, u2, u3, u4) of the three-phase torque windings in the stator are arranged in slots 1, 10, 19, and 28 of the stator, and the v-...

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

Disclosed is a winding type asynchronous motor without a bearing. The winding type asynchronous motor without the bearing comprises a stator and a rotor, wherein a stator groove is formed in the stator, three phases of torque windings and three phases of suspension windings are installed in the stator groove, a rotor groove is formed in the rotor, three phases of rotor windings are installed in the rotor groove, the number of poles of each phase of the torque windings is 4, the number of poles of each phase of the suspension windings is 2, the number of poles of each phase of the rotor windings is 4, and the three phases of the torque windings in the stator and the three phases of the rotor windings in the rotor use current input of the same characteristic frequency. Compared with a squirrel cage asynchronous motor without the bearing, the winding type asynchronous motor without the bearing can generate large radial force and stable torque. The winding type asynchronous motor without the bearing can be set in a double feed type, can be used in the wind power generation field, is of a winding type structure, can add frequency converters in the winding type windings so as to achieve automatic adjustment, can achieve constant frequency power generation at different rotation speeds, meets requirements of electricity loads and grid connections, saves energy and protects environment, and is high in efficiency. The invention further discloses a corresponding manufacturing method of the winding type asynchronous motor without the bearing.

Description

technical field [0001] The invention relates to an asynchronous motor and a control method, in particular to a bearingless asynchronous motor and a control method. Background technique [0002] In recent years, domestic and foreign scholars' research on bearingless motors is basically based on the structure of the squirrel-cage rotor. The rotor magnetic field of the squirrel-cage motor is composed of two parts, one part is generated by the driving magnetic field induction, and the other part is generated by the levitation magnetic field. produced by induction. The interaction between the rotor magnetic field and the suspension magnetic field will generate additional torque, which will have a bad influence on the rotor torque performance. Usually, it is shown that the rotor magnetic field and the levitation magnetic field of the squirrel-cage bearingless asynchronous motor are coupled with each other. This is mainly because the rotor induced current of the conventional squi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/42H02K1/16H02K1/26H02P9/00
CPCH02K17/42H02K3/12H02K15/085H02K15/09H02K2213/03
Inventor 施涛
Owner STATE GRID ANHUI FENGTAI COUNTY POWER SUPPLY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com