An Efficient Wireless Power Transfer System for EV Charging Using High-Frequency Resonant Inverter

An Efficient Wireless Power Transfer System for EV Charging Using High-Frequency Resonant Inverter

Publication Date : 2025-04-10
Author(s) :

K. Praveena, Dummu Gandhi, Ponnamanda Khyathi, Pilla Chandra Mouli, Mannena Hari Sankar

           
Article Name :

An Efficient Wireless Power Transfer System for EV Charging Using High-Frequency Resonant Inverter

Abstract :

In the world, Electric Vehicles (EVs) are a promising technology for developing a sustainable transportation sector because of their extremely low to zero carbon emissions, low noise levels, high efficiency, and flexibility in grid operation and integration. Thus, the number of EVs in use is growing annually. In recent years, Wireless Power Transfer (WPT) systems have been utilized as EV battery chargers. Designing effective power electronic converters enables the WPT system to operate at high frequencies, which is a typical feature for transmitting large amounts of power over longer distances. Therefore, this paper proposes a WPT system based on an efficient high frequency inverter for an EV charging system. A high frequency inverter decreases the size and resistance of passive components like inductors and is utilized for operating more effectively than a low frequency. The primary function of an isolation transformer is to provide electrical isolation between the high voltage battery and the low voltage systems. Finally, interleaved synchronous rectifiers are used to improve efficiency, reduce current ripple, and enhance charging power and energy received for load application. Further, a PI controller helps maintain stability and optimal performance. The MATLAB/Simulink simulation indicates that the proposed system has improved switching losses, reactive power compensation, and the highest efficiency of 98%.

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