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A self-starting method of two-way wireless power transmission system based on detection coil detection

A two-way radio, detection coil technology, applied in electrical components, circuit devices, etc., can solve problems such as increasing the cost and complexity of the system, and achieve the effects of convenient control, high reliability, and small malfunctions

Active Publication Date: 2018-03-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of them are realized through wireless communication between the 1-side and 2-side controllers, which increases the cost of the system and the complexity of the design to a certain extent.

Method used

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  • A self-starting method of two-way wireless power transmission system based on detection coil detection
  • A self-starting method of two-way wireless power transmission system based on detection coil detection
  • A self-starting method of two-way wireless power transmission system based on detection coil detection

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with the accompanying drawings.

[0025] A self-starting method for a two-way wireless power transfer system based on detection coil detection, the structure of the two-way wireless power transfer system is as follows figure 1 As shown, including side 1 and side 2 of topological symmetry. Side 1 includes battery 1, converter 1, LCL resonant network, and controller 1; converter 1 is a single-phase full-bridge reversible rectifier connected to battery 1 and LCL resonant network; LCL resonant network includes series filter inductor L m , parallel capacitance C 1 and coil L 1 . Side 2 includes battery 2, converter 2, controller 2, and LCL-type resonant network; converter 2 is a single-phase full-bridge reversible rectifier, and the single-phase full-bridge reversible rectifier is connected to battery 2 and LCL-type resonant network; LCL-type resonant network includes Series filter inductor L n , paral...

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PUM

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Abstract

The invention discloses a self-starting method of a bi-directional wireless power transmission system based on the detection of a searching coil. The method is suitable for the self-starting of a noncontact power bi-directional transmission system. Taking the power flowing from a side 1 to a side 2 as an example, at the starting stage of the system, the phase information of a high-frequency inversion voltage at the side 1 is acquired by using a sampling resistor at the side 2 and used as an input of a controller at the side 2, so that the controller at the side 2 outputs a control pulse meeting the phase requirement of the system. After the self-starting process of the system is completed, the controller at the side 2 generates a turn-off signal to cut off the sampling resistor, so that the consumption on the sampling resistor when the circuit works normally can be eliminated; meanwhile, the input voltages at the side 1 and the side 2 are converted to a normal voltage stage so as to execute the high-efficient wireless bi-directional transmission of the energy.

Description

technical field [0001] The invention relates to a self-starting method for a two-way wireless power transmission system, and is especially suitable for the field of wireless power transmission requiring two-way flow of energy. Background technique [0002] The two-way wireless power transfer system has a peer-to-peer topology on side 1 and side 2 because it can realize bidirectional flow of energy, which is especially suitable for wireless power supply between electric vehicles. Due to the limited energy storage capacity of EV on-board batteries, a high power factor is necessary when energy is wirelessly transferred from one EV to another. And enabling the system to have a higher power factor is inseparable from the start-up process of the system; only after the system can achieve normal self-start can energy flow efficiently. So far, there has not been a complete solution to the self-starting process of two-way wireless power transfer. At present, most of them are realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
Inventor 谭林林颜长鑫黄学良郭金鹏王维
Owner SOUTHEAST UNIV
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