Design and Development of a 3.2 kW Wireless Battery Charger for an Electric Vehicle with a High-Frequency Full-Bridge Converter using ANSYS Simplorer

Abstract

In this paper, we propose to develop a wireless battery charger (WBC) for electric vehicles based on a high-frequency power converter for efficient transmission of electricity. Wireless battery charging enables the users to use their electric vehicles without any attached connectors. Wireless power trans-fer technology (WPTT) has become of interest recently due to its advantages like ease of operations, low maintenance, high safety, high reliability, and highly durable operational service life. They have a wide variety of applications in the field of mobile, space, military, and biomedical. However, the wireless power battery charging design requires the critical design of coil types, which include careful selection of parameters such as their self inductances and operating frequency. In this paper, the effect of self distance between coils with respect to frequency of high-frequency power converter is analyzed using ANSYS Simplorer environment. A Lithium-ion battery pack is charged with the designed wireless battery charger. The simulation results presented in this paper suggest that an efficiency of 85 % is achieved with an air gap of 10cm between the coils.