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Lookup NU author(s): Wenbo Wang, Dr Mohamed Dahidah
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
In dynamic wireless charging application for electric vehicles, multi-receiver inductive power transfer (IPT) systems hold enormous potential. However, the couplings and the charging rates are significantly different between vehicles and varies randomly, which causes the systems’ efficiency deviate from their optimal state. This paper presents an analytical model for solving the optimal control variables, which considers arbitrary loads and couplings. Based on the proposed model, with further considering coupling and load restriction, the feasible regulation trajectories of primary inverter and secondary active rectifier phases are derived. Besides, a maximum efficiency point tracking (MEPT) control strategy are designed for achieving selective power distribution and constant current output characteristics simultaneously. Finally, an IPT experiment with dual loads is designed and carried out. The experimental results show that the ideal power distribution can be maintained for each receiver under load voltage, demand current and coupling variations, furthermore, the efficiency of the proposed system can be improved by 3% to a maximum of 89.13% compared to the system without MEPT.
Author(s): Wang W, Deng J, Li M, Dahidah MSA, Wang Z
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Transportation Electrification
Year: 2024
Pages: epub ahead of print
Online publication date: 17/04/2024
Acceptance date: 08/04/2024
Date deposited: 08/04/2024
ISSN (electronic): 2332-7782
Publisher: IEEE
URL: https://doi.org/10.1109/TTE.2024.3390430
DOI: 10.1109/TTE.2024.3390430
ePrints DOI: 10.57711/e8vd-v290
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