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

Brushless hybrid excitation synchronous generator with adjustable magnetic flux leakage

A hybrid excitation synchronous and adjustable technology, used in synchronous generators, synchronous motors with static armatures and rotating magnets, electrical components, etc., can solve the problems of limited magnetic field adjustment range and increased axial length, and achieve excitation The effect of easy adjustment, small flux leakage loss and wide operating speed range

Active Publication Date: 2020-04-28
DONGHUA UNIV
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: existing hybrid excitation motors have problems such as axial magnetic flux path, increased axial length and limited magnetic field adjustment range

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
  • Brushless hybrid excitation synchronous generator with adjustable magnetic flux leakage
  • Brushless hybrid excitation synchronous generator with adjustable magnetic flux leakage
  • Brushless hybrid excitation synchronous generator with adjustable magnetic flux leakage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0026] Such as Figure 1 to Figure 5 As shown, a brushless hybrid excitation synchronous generator with adjustable flux leakage in the present invention includes a stator 1 and a rotor 2, and the stator winding 11 is a three-phase AC winding or a dual three-phase AC winding. The rotor 2 has a four-pole structure, and the electric excitation poles 21 and permanent magnet poles 22 are alternately arranged. The electric excitation poles 21 adopt a harmonic current brushless excitation scheme, and the permanent magnet poles 22 adopt permanent magnets 27 in a V-shaped embedded arrangement. A leakage flux path 5 is provided between the two ends of the permanent magnet 27 and the permanent magnet pole 22. The leakage flux path 5 passes through for the permanent magnet leakage flux when the field is weakened, and the excitation flux passe...

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 provides a brushless hybrid excitation synchronous generator with adjustable magnetic flux leakage. The generator comprises a stator and rotor, and is characterized in that the stator winding is a three-phase alternating-current winding or a double three-phase alternating-current winding, the rotor is of an at least quadrupole structure formed by alternately arranging electro-magnetic poles and permanent magnet poles, harmonic current brushless excitation is adopted for the electro-magnetic poles, permanent magnet V-shaped embedded arrangement is adopted for the permanent magnetpoles, leakage flux paths are arranged between the two ends of the permanent magnets and the permanent magnet magnetic poles, leakage flux of the permanent magnets can pass through the leakage flux paths during flux weakening, and excitation flux can pass through the leakage flux paths during flux increasing. On the basis of an existing harmonic excitation technology, the harmonic excitation-permanent magnet flux leakage adjustable brushless hybrid excitation synchronous generator is provided and can be applied to various industrial fields such as wind power generation and hybrid electric vehicles.

Description

technical field [0001] The invention relates to a brushless hybrid excitation synchronous generator with adjustable flux leakage. Background technique [0002] Synchronous motors have excellent characteristics such as high power density and high efficiency, and are widely used in industrial fields such as electric vehicles, wind power generation, and automated manufacturing equipment. However, there are always three problems to be solved in the permanent magnet synchronous motor: (1) the excitation flux generated by the permanent magnet is difficult to adjust; (2) the permanent magnet material has the risk of demagnetization and the motor cannot work; (3) as the permanent magnet The increasingly widespread application of magnetic materials leads to their high prices and the need to reduce their usage. Hybrid excitation motor with high power density of permanent magnet motor and adjustable excitation flux of electric excitation motor is an important way to solve the above pr...

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): H02K21/14H02K29/00H02K19/28
CPCH02K19/28H02K21/14H02K29/00H02K2213/03
Inventor 姚飞孙立志安群涛
Owner DONGHUA UNIV
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