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- W4383333690 abstract "The electric vehicles energy efficiency characteristics of the wireless charging system are directly related to the coupling coil structure of the system, which has a great influence on the transmission power, transmission efficiency, offset tolerance, electromagnetic loss, conducted radiation and other factors of the system. However, the existing coil structure has many difficulties for high-power wireless charging, so a more reasonable coil structure is needed to improve the power density of high-power application systems. Based on the existing wireless charging double-D(DD) coil structure and its theoretical basis, this paper proposes the multiphase bipolar three-winding coil structure, and discusses the magnetic field distribution and magnetic coupling inductance model topology and multiphase coil structure. The considered structure is designed to utilize a rotating magnetic field to achieve smoother power transfer characteristics over time than single-phase systems. The simulation results show that under the same conditions, when the front-end voltage is 800V, the output power of the multiphase coupling structure is 98.62kW, and the coil surface power density reaches 394kW/m2, which increases the transmission power by 26.2% compared with the single-phase structure." @default.
- W4383333690 created "2023-07-07" @default.
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- W4383333690 date "2023-05-26" @default.
- W4383333690 modified "2023-09-23" @default.
- W4383333690 title "High-power multiphase coupled wireless charging coil structure based on DD coil" @default.
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- W4383333690 doi "https://doi.org/10.1109/iciba56860.2023.10165152" @default.
- W4383333690 hasPublicationYear "2023" @default.
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