Supercharge Your Innovation With Domain-Expert AI Agents!

A method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system

A technology of automatic alignment and wireless charging, applied in circuit devices, electrical components, etc., can solve the problem that the position alignment of the transmitting coil and the receiving coil cannot be fundamentally solved, so as to ensure the power transmission performance of the system, and the realization difficulty is small. The effect of reducing control complexity

Active Publication Date: 2020-08-25
HARBIN INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing method cannot fundamentally solve the position alignment problem of the transmitting coil and the receiving coil, the present invention proposes a method for automatically aligning the position of the magnetic coupling mechanism of the wireless charging system. The method establishes a magnetic coupling mechanism based on the LCL-S compensation topology. Coupled with the circuit model of the wireless charging system, the functional relationship between the mutual inductance value and the system circuit parameters is obtained, so as to realize the online estimation of the mutual inductance value

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
  • A method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system
  • A method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system
  • A method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system, wherein the magnetic coupling wireless charging transmission system uses a circular magnetic coupling mechanism, such as figure 1 As shown, the method includes:

[0042] Step 1: Measure and record the mutual inductance value M when the receiving coil and transmitting coil of the magnetic coupling mechanism are fully aligned a , with mutual inductance value M a As the basis for the complete alignment of the receiving coil and the transmitting coil;

[0043] Step 2: According to the topology of the LCL-S compensated magnetic coupling charging transfer system, obtain the equivalent input resistance R e , The impedance Z of the secondary circuit 2 and feedback impedance Z r the model;

[0044] Step 3: Measure the RMS value I of the resonant current in the transmitting coil of the primary circuit 1_rms , the voltage across the compensation capacitor U c1_rm...

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 magnetic coupling mechanism position automatic alignment method applied to a magnetic coupling wireless charging transmission system, and belongs to the technical field of wireless charging systems. According to the invention, a circuit model of the magnetic coupling wireless charging system is established based on an LCL-S compensation topology, and a function relationship between a mutual inductance value and system circuit parameters is obtained, so that online estimation of the mutual inductance value is realized. On the basis of analyzing the characteristic curveof the position offset and the mutual inductance value of the magnetic coupling mechanism, the mutual inductance value estimated on line is combined, and the self-alignment of the position of the magnetic coupling mechanism is realized through a disturbance observation method.

Description

technical field [0001] The invention relates to a method for automatically aligning the position of a magnetic coupling mechanism in a wireless charging system, and belongs to the technical field of wireless charging systems. Background technique [0002] As an emerging power transmission technology in recent years, Wireless Power Transfer (WPT) technology has attracted close attention from scientific research institutions and companies at home and abroad due to its automatic and non-contact characteristics. The wireless charging system transmits energy from the transmitting coil (primary side part) to the receiving coil (secondary side part) through the space magnetic field, and realizes non-contact charging after being adjusted by the receiving end circuit. In-depth research on the theory and key technologies based on magnetic coupling wireless power transmission technology has greatly promoted the application process of this technology in a wide range of fields such as el...

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 Patents(China)
IPC IPC(8): H02J50/12H02J50/90
CPCH02J50/12H02J50/90
Inventor 宋凯李振杰朱春波杨光董帅魏国逯仁贵
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com