Study on wireless power transfer based on magnetic resonance using inductive coil
Syaiful Anas, Ibrahim
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Wireless power transfer (WPT) based on magnetic resonance has become a major field of interest for researchers. Transferring power across air gaps has been achieved according to recent researches. Both small electric equipment such as mobile phones, laptops and large electric equipment such as electric vehicles have been proposed. In this thesis, we design the WPT on maximum air-gap and efficiency based on magnetic resonant coupling. Computer Simulation Technology Microwave Studio (CST MWS) was used to design the models of power transfer systems. In this research, the inductance expression based on Current Sheet Approximation and Modified Wheeler Formula are proposed. Simulations show that the change of the number of turns and air gap distance are found to be affecting the power transfer efficiency. Simulation results showed that the model of WPT system achieved the highest efficiency 99.5% at a distance of 30 cm and resonant frequency of 12.05 MHz.