Magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system

A resonant radio, impedance matching technology, applied in electromagnetic wave systems, electrical components, circuit devices, etc., can solve problems such as load power drop, and achieve the effects of good electromagnetic compatibility, high reliability, and optimized transmission power

Inactive Publication Date: 2015-01-21
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

[0004] The invention aims to overcome the problem of load power drop under the interference of the working distance or other factors that cause impedance changes in the traditional magnetic coupling resonant wireless power transmission system transceiver coil, and proposes an adaptive impedance matching network base...

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  • Magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system
  • Magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system
  • Magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system

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Embodiment Construction

[0013] The invention provides an adaptive impedance matching system for wireless power transmission based on magnetic coupling resonance. The following describes in detail the adaptive impedance matching system for wireless power transmission based on magnetic coupling resonance of the present invention with reference to examples and accompanying drawings.

[0014] like figure 1 As shown, the adaptive impedance matching system based on magnetic coupling resonant wireless power transmission of the present invention includes a power supply 1 that can provide the required power to the power and signal transmission system 2, and is also provided with: the power and signal transmission system 2 transmits power in a wireless manner The power and signal receiving system 3 is used to receive the power transmitted by the power transmitting system 2, and the load unit 4 receives the power provided by the power receiving system 3 and starts to work normally.

[0015] like figure 2 As ...

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Abstract

The invention relates to a magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system which mainly comprises a DSP control system based on a particle swarm optimization, a radio frequency power amplification system, an impedance matching system, a power emission system, a power receiving system, a rectification and filter system, a reflection coefficient detection system and a load system. The system belongs to the field of cross of high-frequency electromagnetic theory engineering and signal transmission application frontier and solves the problem of impedance self-tuning of a wireless power transmission technology. The magnetic coupling resonance type wireless power transmission self-adaptive impedance matching system solves the problem that traditionally, the efficiency is reduced when the power load is changed, has the advantages of simple structure, easiness in realization, high reliability and strong anti-jamming capability, and is based on the particle swarm optimization of DSP.

Description

technical field [0001] The invention relates to an adaptive impedance matching system for wireless power transmission based on magnetic coupling resonance. In particular, it relates to a magnetically coupled electric energy wireless transmission system based on an adaptive impedance matching network to optimize transmission power, high reliability, and good electromagnetic compatibility. Background technique [0002] Since it was discovered in 1840 that the use of electromagnetic induction and wires can transmit electric energy, the transmission of electric energy is mainly carried out by direct contact of wires. The charging of electrical equipment is generally carried out through plugs and sockets, but when high-power charging is performed, there is a risk of high-voltage electric shock in this charging method. And due to the existence of friction and wear, the safety, reliability and service life of the system are low, especially in some flammable and explosive fields su...

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Application Information

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IPC IPC(8): H02J17/00H02J50/12
Inventor 倪卫涛杨庆新刘维娜李阳何亚伟杨晓博张雅希
Owner TIANJIN POLYTECHNIC UNIV
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