Imtiaz, Tabish and Elsanabary, Ahmed and Mubin, Marizan and Soon, Tey Kok and Mekhilef, Saad (2024) Enhancing Misalignment Tolerance Using Naturally Decoupled Identical Dual-Transmitter-Dual-Receiver Coils for Wireless EV Charging System. IEEE Journal of Emerging and Selected Topics in Power Electronics, 12 (5). pp. 5337-5351. ISSN 2168-6777, DOI https://doi.org/10.1109/JESTPE.2024.3447286.
Full text not available from this repository.Abstract
The rapid reduction of power transfer efficiency with misalignment is a matter of grave concern for compact high-power wireless power transfer (WPT) systems. The misalignment tolerance can be increased by using complex control techniques, but the efficient misalignment operation range is still narrow, and efficiency drops significantly beyond that range. This article proposes a novel natural decoupling method to enhance the efficient misalignment operation range for identical symmetrical quadruple-D coils arranged in a dual-transmitter-dual-receiver configuration without requiring any control. Decoupling of multiple transmitters and receivers is essential for efficient zero phase angle (ZPA) operation. At fully aligned condition, the experimental prototype of this design exhibits a peak efficiency of 96% at 2.25-kW output power for a vertical distance of 150 mm. The misalignment operation range extends from +300 to -100 mm for a 400 x 400 mm coil size with almost constant efficiency (94.78%-96.19%). The rated power operation points occur at 0 mm (fully aligned) and also at +200 mm (50% misaligned position), thus making it possible to obtain full rated power without fully aligning the electric vehicle (EV).
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya Matching Grant (MG033-2022) |
| Uncontrolled Keywords: | Electric vehicle (EV); high efficiency; magnetic coupler; misalignment; natural decoupled; quadruple-D; wireless power transfer (WPT) |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Computer Science & Information Technology > Department of Computer System & Technology Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Feb 2025 02:06 |
| Last Modified: | 14 Feb 2025 02:06 |
| URI: | http://eprints.um.edu.my/id/eprint/47440 |
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