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

Wireless power transmission method and system

A technology of wireless power transmission and power converter, applied to electrical components, circuit devices, etc., can solve problems such as inability to determine azimuth angle, inability to establish communication links, inability to effectively realize wireless power transmission, etc.

Active Publication Date: 2018-01-23
CENT SOUTH UNIV
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In an environment where communication is difficult, it is impossible to establish a communication link, so that the azimuth angle cannot be determined, and thus wireless power transmission cannot be effectively realized, which has certain limitations.

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
  • Wireless power transmission method and system
  • Wireless power transmission method and system
  • Wireless power transmission method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] like figure 1 As shown, an embodiment of the present invention provides a wireless power transmission method, which is characterized in that it includes:

[0047] S11, for the alternating magnetic field generated by the transmitting device, according to the input power in any magnetic field direction of the alternating magnetic field, determine the target magnetic field direction corresponding to the maximum input power among all the input powers, and the determining factors of the input power include the The magnetic field coupling strength between the transmitting device and the receiving device;

[0048] S12. Adjust the current amplitude and current phase angle...

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 wireless power transmission method and system. The method comprises: S11, for an alternating magnetic field generated by a transmitting device, according to an input power ofthe alternating magnetic field in any magnetic field direction, a target magnetic field direction corresponding to a maximum input power among all input powers is determined, wherein determining factors of the input powers include magnetic the magnetic field coupling strength between the transmitting device and a receiving device; and S12, a current amplitude and a current phase angle in the transmitting device are adjusted and thus the magnetic field direction of the alternating magnetic field generated by a transmitting device is overlapped with the target magnetic field direction corresponding to the determined maximum input power, thereby realizing power transmission. According to the wireless power transmission method, the orientation where the receiving device is located is tracked automatically; and establishment of communication connection between the transmitting device and the receiving device is not needed, so that a phenomenon that wireless power transmission can not be realized because no communication connection can be established in an environment with difficult communication is avoided.

Description

technical field [0001] The present invention relates to the field of power transmission, and more specifically, to a method and system for wireless power transmission. Background technique [0002] At present, environmental and energy issues are increasingly becoming one of the prominent issues in the world. How to effectively utilize existing energy sources has aroused extensive attention of scholars from various countries. With the development of materials science, power electronic devices, power conversion and control technologies, wireless power transfer systems have been widely used in electric vehicles, aerospace, power systems, new energy power generation, medical instruments, lighting, portable communication equipment and other fields prospect. [0003] According to the principle, the wireless power transmission system can be mainly divided into several categories: electromagnetic induction, electromagnetic radiation, electromagnetic resonance, laser, radio wave an...

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): H02J50/12H02J50/90H02J50/40
Inventor 粟梅刘梓溪朱奇孙尧唐维溢马昂宁思捷
Owner CENT SOUTH 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