Abstract

For the power supply of spaceborne cameras on two-body satellites, an improved magnetic coupling resonant wireless power transfer system (WPT) is proposed. By establishing the equivalent circuit model of WPT system, the influence of topology model and high-Q repeating coil on system performance is analyzed. Finally, the correctness of theory and analysis was verified by experiments. The experimental results show that when the transmission distance of the improved WPT system is 11cm, the load can receive 18.66W of power and the transmission efficiency is 69%. Compared with the traditional two-coil WPT system, the system has a significant improvement in transmission distance, transmission power, and transmission efficiency, and can meet the technical requirements of spaceborne cameras in transmission distance, transmission power and transmission efficiency.

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