Performance analysis of inductive power transfer using JMAG-designer Ismail Ahmat Mahadi, Jabbar Al-Fattah Yahaya Bulletin of Electrical Engineering and Informatics, 2023 Due to its advantage of sending electrical power from the transmitter source to the receiver load with no physical contact, wireless power transfer (WPT) has rapidly gained popularity in recent years. They can be used in a variety of applications, including induction cooking, mobile phone charging, radio frequency identification (RFID), and electric vehicles (EVs). Using JMAG-designer, a simulation of series-parallel inductive power transmission has been investigated in this research. This study aims to determine how the output power and efficiency change depending on how many coils turn in the transmitter and receiver. The number of coils turn in the transmitter is fixed which is 20 turns, the number of coils turn in the receiver is variable and ranges between 15 and 30, and the air gap or distance between the coupling coils is set at 10 cm. The selected frequency to be used in this simulation is between 10 and 50 kHz. According to the absorption result, the output power and efficiency rise when the receiver has more coil turns than the transmitter, and the output power and current rise along with an increase in resonance frequency.
Performance Analysis of Different Shielding Material for A 100W Wireless Power Transfer System Ismail Ahmat Mahadi, Jabbar Al-Fattah Yahaya Journal of Physics Conference Series, 2022 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%.
