Study on Dual-Ring Coaxial Type Coupled Structure with Inductive and Capacitive Combined Wireless Power Transfer

Abstract

This thesis is aimed at the combination of inductive and capacitive power transfer A symmetrical coaxial dual-ring type coupled structure was proposed Electromagnetic field simulation software was used to determine the more appropriate structure and analyze the coupling between TX and RX Moreover the mathematical model was constructed The inner and outer coils were driven by 30 kHz power source for inductive power transmission At the same time 300 kHz power source was carried between the inner and outer coils to generate displacement current for capacitive power transmission Considering the complexity and efficiency of the system series-series resonance circuits and L-shaped double-sided LC compensation circuits were used When the transmission distance is 6 cm and well-alignmented the maximum transmission power of the overall system is 76 26 W and the maximum transmission efficiency is 62 2% Furthermore the efficiency can be maintained about 60% with horizontal misalignment 33% of the overall structure size

Date of Award	2020
Original language	English
Supervisor	Jia-You Lee (Supervisor)