| dc.description.abstract | Wireless power transfer (WPT) systems has become very important in recent years. WPT is used in many areas. In this study, an inductive wireless power transfer (IWPT) system was designed for electric vehicles. The shape of the primary and secondary coils is circular and their radius is 25 cm. The operating frequency of the system is 20 KHz and the applied voltage is 100 volts. The effect of the distance between the primary and secondary coils on the efficiency of the system was investigated by generating a 3D Maxwell model of the system. The distance between the primary and secondary coils was modified as 10, 15, 20 and 25 cm and the coupling coefficient, mutual inductance, input power, output power and efficiency of the system were investigated in each case. As a result, it was observed that the coupling
coefficient, the common inductance, and the efficiency of the system are inversely proportional with the distance between the coils. When the distance between the coils was 10 cm, the efficiency of the system was 84.21%. As the distance between the coils increases, the system efficiency decreases and when the distance between the coils is 25 cm, the system efficiency becomes 71.07%. | tr |
