Abstract

Compared with the electromagnetic induction wireless power transmission system, the magnetically coupled resonant wireless power transmission system has the advantages of high efficiency, medium-distance transmission and small electromagnetic interference outside the resonance frequency, and has become the focus of wireless power transmission. Based on the principle of magnetic coupled resonant wireless power transmission, the equivalent circuit topology of the string-and-string model is first established and the system model is analyzed. By adjusting factors such as load, quality factor, distance, resonant frequency and coupling coefficient, Transmission efficiency and output power changes in the transmission process; Finally, according to the coupled string-to-string topology of the system to produce a prototype system, the experimental data verify the correctness of the simulation.

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