Induction type wireless power transmission system with strong anti-offset capability

A technology of wireless power transmission and anti-offset, which is applied in the direction of control/regulation system, high-efficiency power electronic conversion, and conversion equipment with intermediate conversion to AC, and can solve the problem of poor anti-offset ability of compensation topology

Pending Publication Date: 2020-10-30
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problem of poor anti-offset capability of traditional compensation topology, the ...

Method used

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  • Induction type wireless power transmission system with strong anti-offset capability
  • Induction type wireless power transmission system with strong anti-offset capability
  • Induction type wireless power transmission system with strong anti-offset capability

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specific Embodiment approach 1

[0063] Specific implementation mode 1. Combination figure 1 and figure 2 As shown, the present invention provides an inductive wireless power transfer system with strong anti-offset capability, including an inverter circuit, a primary-side compensation topology, a loosely coupled transformer, a secondary-side compensation topology, and a rectifier circuit;

[0064] The output voltage of the inverter circuit is rectified by the rectifier circuit and supplied to the load after passing through the primary side compensation topology, loosely coupled transformer and secondary side compensation topology;

[0065] The primary side compensation topology includes a compensation capacitor C 1 , compensation capacitor C 2 and compensation inductance L 1 ;Secondary side compensation topology includes compensation capacitor C 3 and compensation capacitor C 4 ;

[0066] The compensation inductance L is sequentially connected between the positive pole and the negative pole of the prim...

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Abstract

The invention discloses an induction type wireless electric energy transmission system with strong anti-offset capability, and belongs to the field of wireless electric energy transmission. The invention aims to solve the problem of poor offset resistance of the traditional compensation topology. An output voltage of an inverter circuit is provided for a load through a rectification circuit afterpassing through a primary side compensation topology, a loose coupling transformer and a secondary side compensation topology; the primary side compensation topology, the loose coupling transformer and the secondary side compensation topology are equivalent to a compensation topology controlled source model; a ratio relationship between the output voltage of the secondary side compensation topology and the input voltage of the primary side compensation topology is obtained; according to the target ratio relation, primary side coil self-inductance and secondary side coil self-inductance of theloose coupling transformer, equivalent impedance corresponding to the compensation inductor L1 and the compensation capacitor C1, equivalent impedance corresponding to the primary side coil self-inductance and the compensation capacitor C2, equivalent impedance corresponding to the secondary side coil self-inductance and the compensation capacitor C3, and equivalent impedance corresponding to thecompensation capacitor C4 are determined. According to the invention, the anti-offset capability of the system can be remarkably improved, and zero-phase angle input is realized.

Description

technical field [0001] The invention relates to an inductive wireless power transmission system with strong anti-offset capability, and belongs to the technical field of wireless power transmission. Background technique [0002] The research on inductive wireless power transfer can be roughly divided into three parts: inverter circuit, compensation structure and loosely coupled transformer. Its main research work started after the discovery of resonant wireless power transfer technology. Therefore, the research in the field of inductive wireless power transfer is mainly its application in engineering. After the discovery of resonant wireless power transfer technology, more and more scholars have noticed the potential of wireless power transfer, so they have invested in the research of inductive wireless power transfer. [0003] The research on wireless power transmission technology can be generally summarized into three aspects, namely, inverter circuit research, compensati...

Claims

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Application Information

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IPC IPC(8): H02J50/12H02M3/28H02M3/335H02M1/32
CPCH02J50/12H02M3/28H02M3/33569H02M1/32H02M1/0058Y02B70/10
Inventor 王懿杰麦建伟姚友素孙孟周张相军徐殿国
Owner HARBIN INST OF TECH
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