A Novel AC to AC Wireless Power Transfer System for EV Charging Applications

Asa, Erdem; Pries, Jason; Galigekere, Veda Prakash; Mukherjee, Subho; Onar, Omer; Su, Gui-Jia; Ozpineci, Burak

doi:10.1109/APEC39645.2020.9124602

A Novel AC to AC Wireless Power Transfer System for EV Charging Applications

Conference · Mon Jun 01 00:00:00 EDT 2020

DOI:https://doi.org/10.1109/APEC39645.2020.9124602· OSTI ID:1649404

Asa, Erdem ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]

ORNL

In this paper, a novel ac to ac wireless power transfer (WPT) system is introduced for electric vehicle (EV) charging applications to reduce cost and design complexity. The presented wireless power transfer concept achieves unity power factor (UPF) on the grid-side by using a hybrid frequency ac / ac converter without an additional converter stage and closed loop control compared to the conventional systems. Due to inherent merit of the proposed ac / ac converter, ac input with 60 Hz grid frequency can be directly transferred to the load by superimposing with high frequency switching signal through the wireless coils. To validate the theoretical analysis of the proposed WPT system, the experimental results of the proposed converter are provided for 650 W output power by using 6 inches air gap between the couplers with the input of 110 VRMS ac source. The system overall efficiency is measured 89 % achieving 0.99 power factor (PF) and 1.5 % current total harmonic distortion (THD).

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1649404

Country of Publication:: United States

Language:: English

References (11)

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