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Integration of Onboard Charger and Wireless Charging System For Electric Vehicles With Shared Coupler, Compensation, and Rectifier | IEEE Journals & Magazine | IEEE Xplore

Integration of Onboard Charger and Wireless Charging System For Electric Vehicles With Shared Coupler, Compensation, and Rectifier


Abstract:

For electric vehicles (EVs) equipped with an onboard charger (OBC) and a wireless power transfer (WPT) system, there will be two charging systems in the EVs, which increa...Show More

Abstract:

For electric vehicles (EVs) equipped with an onboard charger (OBC) and a wireless power transfer (WPT) system, there will be two charging systems in the EVs, which increases the cost, weight, and complexity. Based on the proposed design of magnetic couplers, this letter proposes a novel integration method for OBC and WPT systems of EV charging. The isolation transformer of the OBC system can be regarded as two strongly coupled coils. The secondary-side coil, namely the receiving coil, can also be loosely coupled with the transmitting coil of the WPT system. Thus, the receiving coil, the compensation, and the rectifier of both the OBC and WPT systems can be shared. In this way, the EV charging system can be capable of conductive charging and wireless charging while still having the advantages of cost effectiveness and high power density. An experimental prototype is implemented to validate the proposal.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 70, Issue: 7, July 2023)
Page(s): 7511 - 7514
Date of Publication: 13 September 2022

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