Wireless power transmission system and method

A wireless power transmission and coil technology, applied in electrical components, circuit devices, etc., can solve problems such as limited transmission range, and achieve the effects of wide transmission range, strong directivity, and low energy loss

Inactive Publication Date: 2016-08-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a wireless power transmission system and method, which are used to solve the problem that the transmission range of the wireless power transmission system is greatly limited in the prior art

Method used

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

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Embodiment Construction

[0042] 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.

[0043] figure 1 It shows a wireless power transmission system provided by Embodiment 1 of the present invention, including:

[0044] The transmitting module 1 is used to receive a driving voltage to generate a driving current to generate an alternating magnetic field, and is coupled with the receiving module to perform wireless power transmission. Wherein, the transmitting module includes a transmitting coil and a resonant capacitor, and the transmitting coil adopts a three-dimensional coil structure, which includes three coils whose centers coincide with each other and whose planes are perpendicular to each other. Each coil is connected in series with a resonant capacit...

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Abstract

The invention provides a wireless power transmission system and method. The wireless power transmission system includes an emission module, a reception module, a control module and a power supply module, wherein the emission module is used for receiving driving voltage to generate driving current so as to generate an alternating magnetic field, and is coupled with the reception module to perform wireless power transmission; the reception module is used for coupling with the emission module to perform wireless power transmission, and sending the feedback information to the control module; the control module is used for acquiring the amplitude and phase controlling the driving current according to the feedback information, and enabling the power supply module to work according to the acquired amplitude and phase; and the power supply module is used for receiving the amplitude and phase and adjusting the amplitude and phase so as to supply driving voltage for the emission module and generate the required driving current. The invention provides a wireless power transmission system and method, based on a three dimensional coil wave beam shaping technology. The wireless power transmission system and method can control the magnitude and direction of the magnetic induction intensity in the three dimensional space by means of control of the current amplitude flowing into the coil and the phase, enable the magnetic field to direct at the specific position, can continuously feed back information, and can reduce the system stable state error to achieve the aim of field orientation.

Description

technical field [0001] The present invention relates to the technical field of power electronics, in particular to a wireless power transmission system and method. 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] Electromagnetic coupling resonance wireless power transmission technology belongs to the frontier topic in the field of power transmission and is a brand-new technical field. Using the principle of magnetic coupling res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/40
Inventor 朱奇粟梅孙尧杨建马昂赵梓亦宁思捷但汉兵邓书豪俞璐邓慧
Owner CENT SOUTH UNIV
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