Gallium Nitride (GaN) based High-Power Multilevel H-Bridge Inverter for Wireless Power Transfer of Electric Vehicles
<|reference_start|>Gallium Nitride (GaN) based High-Power Multilevel H-Bridge Inverter for Wireless Power Transfer of Electric Vehicles: This paper presents a design and implementation of a high-power Gallium Nitride (GaN)-based multilevel Hbridge inverter to excite wireless charging coils for the wireless power transfer of electric vehicles (EVs). Compared to the traditional conductive charging, wireless charging technology offers a safer and more convenient way to charge EVs. Due to the increasing demand of fast charging, high-power inverters play a crucial role in exciting the wireless charging coils within a wireless power transfer system. This paper details the system specifications for the wireless charging of EVs, providing theoretical analysis and a control strategy for the modular design of a 75-kW 3-level and 4-level Hbridge inverter. The goal is to deliver a low-distortion excitation voltage to the wireless charging coils. LTspice simulation results, including output voltage, Fast Fourier Transform (FFT) analysis for both 3-level and 4-level H-bridge inverters, are presented to validate the control strategy and demonstrate the elimination of output harmonic components in the modular design. A GaNbased inverter prototype was employed to deliver a 85-kHz power to the wireless charging pads of the wireless power transfer system. Experimental results at two different voltage and power levels, 100V-215W and 150V-489W, validate the successful performance of the GaN inverter in the wireless charging system.<|reference_end|>
@article{chevinly2024gallium,
    title={Gallium Nitride (GaN) based High-Power Multilevel H-Bridge Inverter for
  Wireless Power Transfer of Electric Vehicles},
    author={Javad Chevinly, Shervin Salehi Rad, Elias Nadi, Bogdan Proca, John
  Wolgemuth, Anthony Calabro, Hua Zhang, Fei Lu},
    journal={arXiv preprint arXiv:2405.11131},
    year={2024},
    archivePrefix={arXiv},
    eprint={2405.11131},
    primaryClass={eess.SY cs.SY}
}