Development of a Static Wireless Power Transfer System for Electric Bikes

Abstract

This paper presents the design and development of a static wireless power transfer system for electric bikes. The system consists of two main parts: the power transmitter circuit and the power receiver circuit, in which the power source is a 9 Ah 36 V battery. The developed power transfer system was tested, and the condition at which the best power transmitter efficiency occurred was also found by taking consideration of two factors: frequency and distance between the power transmitter and the power receiver. The test results show that the wireless power transfer system being designed and developed can deliver power effectively. In addition, the highest power transmitter efficiency is 73.57 % at the resonance frequency of 36 kHz and the distance between the power transmitter and the power receiver of 4 cm.