OPTIMIZE THE EFFICIENCY OF THE WIRELESS POWER TRANSFER SYSTEM USING THE QUALITY FACTOR OF THE RESONATOR

Abstract

Wireless power transfer technology has become the ideal solution to provide energy for mobile electronic devices, implanted medical devices, and electric vehicles,... Currently, some studies have shown that the performance of the magnetic resonant wireless power transfer system depends on the quality factor Q of the transmitter/receiver resonant coils in the system. In this study, using electromagnetic simulation methods, we determine the quality factor of the resonant coil and investigate the optimized performance of the symmetric magnetic resonant wireless power transfer system according to the quality factor of this resonant coil. We design a system operating at the frequency of 13.56 MHz and obtaining the maximum and minimum efficiencies of 67.9%, and 54%, for the resonant coil with the highest and lowest quality factors of Q = 261, and Q = 174.5, respectively. This result can be applied to optimizing the structure of resonant coils to enhance the performance of the magnetic resonant wireless power transfer system.