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Hybrid radio energy transmission system based on external self-oscillation power supply

A technology of wireless energy transmission and self-excited oscillation, applied in electrical components, circuit devices, etc., can solve problems such as unfavorable system practical application, reduced transmission efficiency, transmission performance transmission distance limitation, etc., to achieve rapid response to load changes and reduce sensitivity. , to achieve various effects

Active Publication Date: 2018-06-29
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the transmission performance of these two methods is severely limited by the transmission distance
As the distance increases, the transmission efficiency will be greatly reduced, which is not conducive to the practical application of the system

Method used

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  • Hybrid radio energy transmission system based on external self-oscillation power supply
  • Hybrid radio energy transmission system based on external self-oscillation power supply
  • Hybrid radio energy transmission system based on external self-oscillation power supply

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific examples.

[0019] The basic principle of the hybrid wireless power transmission system based on an external self-excited oscillating power supply provided by the present invention is to use two transmission modes of electric field coupling and magnetic field coupling to provide wireless power supply to the load, so that the system transmission efficiency is improved and the transmission distance is increased. In addition, the operating frequency of the self-excited oscillating power supply is not fixed, but keeps working at the eigenfrequency as the system parameters change. Within the critical transmission distance, the transmission efficiency of the system is constant at the eigenfrequency, thus realizing Long-distance, high-power stable power transmission.

[0020] Such as figure 1 As shown, the hybrid wireless power transmission system based on an external self-oscillating power sup...

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Abstract

The invention discloses a hybrid radio energy transmission system based on an external self-oscillation power supply. The system comprises a self-oscillation power supply and a transmission circuit which are connected and a receiving circuit and a load which are connected; the transmission circuit comprises a coupling electrode plate connected with a primary circuit, a transmission coil which is in series connection with the coupling electrode plate and a primary compensation capacitor, and the transmission coil comprises primary inductance and transmission circuit internal resistance which are in series connection; the receiving circuit comprises a coupling electrode plate connected with a secondary circuit and a receiving coil and a secondary compensation capacitor which are in series connection with the coupling electrode plate, and the receiving coil comprises secondary inductance and receiving circuit inner resistance which are in series connection; electricity is supplied for theload by the transmission circuit and the receiving circuit through two manners of the electric field coupling between the coupling electrode plates and the magnetic field coupling between the transmission coil and the receiving coil. By means of the system simultaneously, the transmission distance of the system can be increased, and high-power, long-distance and stable radio energy transmission is achieved.

Description

technical field [0001] The present invention relates to the technical field of wireless power transmission, in particular to a hybrid wireless power transmission system based on an external self-excited oscillation power supply. Background technique [0002] Due to the need for a large number of metal wires and cumbersome wiring projects, the traditional wired power transmission method has obvious shortcomings such as reducing the flexibility of electrical devices and being greatly affected by the working environment. In order to solve the limitations of traditional power transmission methods, wireless power transmission technology has been proposed many years ago. This method is convenient to take power, saves metal resources and does not require complicated wiring projects, which makes up for the defects of traditional wired power transmission methods. [0003] Wireless power transmission technologies mainly include magnetic field coupling, electric field coupling and mic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12
CPCH02J50/12
Inventor 张波刘功俊疏许健
Owner SOUTH CHINA UNIV OF TECH
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