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A wireless power transmission system resonance compensation method with arbitrary constant voltage output

A technology of wireless power transmission and compensation method, applied in the direction of circuit devices, electrical components, etc., can solve the problems of reducing the flexibility and economy of system design

Inactive Publication Date: 2019-04-02
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a given magnetic coupling structure, the output can only be adjusted by adjusting the operating frequency, input voltage or current, or adding other voltage / current adjustment modules to control the output, which greatly reduces the flexibility and economy of system design

Method used

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  • A wireless power transmission system resonance compensation method with arbitrary constant voltage output
  • A wireless power transmission system resonance compensation method with arbitrary constant voltage output
  • A wireless power transmission system resonance compensation method with arbitrary constant voltage output

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144] Embodiment 1: For a wireless power transmission system operating at a frequency of 100kHz, the self-inductance of the primary side of the magnetic coupling structure is 150uH, the self-inductance of the secondary side is 130uH, and the mutual inductance between the primary side and the secondary side is 30uH. It is 100V, and the optimization method is as follows:

[0145] When the output needs 100V, that is, the transformation ratio n is 1, use the parameters of the above formula (1) to design C p 21.1nF, C s is 25.3nF, at this time the output side can achieve the effect of constant voltage output 100V, the simulation results are as follows Figure 23 shown;

[0146] When the output needs 150V, that is, the transformation ratio n is 1.5, use the parameters of formula (1) to design C p 19.48nF, C s is 19.8nF, at this time the output side can achieve the effect of constant voltage output 150V, the simulation results are as follows Figure 24 shown;

[0147] When the...

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Abstract

The invention relates to a resonance compensation method for a wireless power transmission system with a random constant-voltage output. According to the method, all-range accurate regulation on an output voltage is achieved through a controllable leakage inductance compensation method under the condition of not changing existing SS and PS compensation network structures, and the method has the characteristics of being wide in output voltage range, high in practicability, simple, easy to use and the like.

Description

technical field [0001] The invention relates to a new compensation network parameter determination method, in particular to a resonance compensation method for a wireless power transmission system with arbitrary constant voltage output. Background technique [0002] The wireless power transmission technology is to rectify the alternating current of the power grid, correct the power factor and invert it into high-frequency alternating current. Through the compensation network and magnetic coupling system, the energy is transmitted from the transmitting side to the receiving side, and then through the rectification link and power voltage regulation. After the link, the output supplies power to the load. The basic structure block diagram of the wireless power transmission system is as follows: figure 1 shown. As an important part of the system, the compensation network has an important impact on improving the system power factor, improving input and output characteristics and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
CPCH02J5/005
Inventor 陈庆彬叶逢春陈为
Owner FUZHOU UNIV
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