Abstract
To improve the efficiency and performance of the wireless power transfer system (WPT), the core material or the coil shielding material must be selected appropriately due to its significant factors to the system. This paper discusses the importance of using coil shielding and the types of material that is suitable to increase the performance of WPT system. The simulation was carried out using 3D finite element analysis called JMAG-Designer. The purpose of using shielding material in a coil is to redirect the magnetic field generated from the primary to the secondary coil. The result and analysis shows that soft magnetic material (ferrite core) used as core shielding is suitable for WPT application. It increases the power transferred and performance efficiency of the system. Compared to the other shield materials, the usage of ferrite core is found to increase the WPT efficiency up to 92%.
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