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

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...

AI Technical Summary

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 based on particle swarm control to tune the load impedance synchronously Based on the design concept of impedance tracking control, a magnetically coupled power wireless transmission system with optimized transmission power, high reliability and good electromagnetic compatibility is designed based on impedance tuning control.

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