Magnetic-field modulation wave power generator with permanent-magnet concentric structure

A technology of magnetic field modulation and eccentric structure, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit, electrical components, etc., can solve the problems affecting the performance and accuracy of the control system, reduce the stability of the motor, torque vibration and other problems, and achieve effective The value and fluctuation are small, the accuracy and stability are improved, and the effect of magnetic load is improved

Inactive Publication Date: 2018-11-02
TIANJIN UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that the cogging torque generated by the interaction between the surface-mounted permanent magnet and the stator armature core will cause vibration and noise of the torque, which will reduce the stability of the motor operation, affect the performance and accuracy of the control system, and affect the wave Great impact on power generation system

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
  • Magnetic-field modulation wave power generator with permanent-magnet concentric structure
  • Magnetic-field modulation wave power generator with permanent-magnet concentric structure
  • Magnetic-field modulation wave power generator with permanent-magnet concentric structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The invention proposes a permanent magnet eccentric structure, and the motor structure changes the air gap magnetic field distribution by adjusting the permanent magnet structure of the outer rotor. The eccentric structure of the magnetic field modulation wave generator includes a stator, a rotor and a magnetic modulation ring. The stator consists of a 12-slot stator core and distributed stator windings. The magnetic modulation ring is located between the outer rotor and the stator, and 27 magnetic modulation blocks are evenly distributed to play the role of magnetic field modulation. The outer rotor is composed of a rotor core and a surface-mounted permanent magnet. The surface-mounted permanent magnet adopts a magnetic pole shape of unequal thickness, that is, the thickness of the permanent magnet gradually decreases from the middle to both sides. The centers of the circles do not coincide, there is an eccentricity h, and the eccentricity is 61.5mm. It is equivalent...

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 relates to a magnetic-field modulation wave power generator with a permanent-magnet container structure. The magnetic-field modulation wave power generator comprises a stator and an outer rotor, wherein the outer rotor comprises a rotor core and a surface-mounting permanent body, a magnetic regulation block is additionally arranged in a gap between the outer rotor and the stator andis used for modulating a magnetic field, a circle center of an outer edge of a magnetic pole of each permanent magnet is not coincided with a circle center of an inner diameter, the thicknesses of thepermanent magnets are not uniform, the circle center of an arc of the outer edge of the magnetic pole moves at concentric distance h so that the arc radius of the outer edge is reduced, and the thickness of the permanent magnet of the outer rotor is gradually reduced from a middle part from two ends.

Description

technical field [0001] The invention belongs to the field of motor design, and in particular relates to a magnetic field modulation wave generator. Background technique [0002] As a renewable, reusable, and abundant green energy, wave energy has attracted the attention of countries all over the world in recent years. my country is a large oceanic country. From the Bohai Sea, the Yellow Sea, the East China Sea to the South China Sea, the total area of ​​the ocean exceeds 4.7×10 6 km 2 , the coastline is more than 18,000km long, and the wave energy density in the sea is about 2-5kW / m. In view of the characteristics of high energy density and low movement speed of wave energy, there are two transmission modes of wave power generation system: direct drive and speed-increasing gearbox. The structural design and process manufacturing of traditional direct-drive motors are relatively difficult, and they are large in size and high in cost. However, the speed-up gearbox will caus...

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): H02K1/27
CPCH02K1/2786H02K2201/06H02K2213/03
Inventor 方红伟陈虹旭
Owner TIANJIN UNIV
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