A Stable Transmission Method for Electric Vehicle Charging Application

The widespread adoption of electric vehicles is of great significance for promoting the transformation of the energy structure, reducing environmental pollution, and achieving green transportation. With the large-scale popularization of electric vehicles, the stable charging of electric vehicles has become a crucial issue. Stable transmission methods are used to ensure that electric vehicles can receive continuous and stable electrical energy during the charging process, thereby ensuring charging safety, improving charging efficiency, and promoting sustainable energy development. This paper proposes a dual-transmitter-single-receiver coupler to ensure stable output power and high efficiency of the system. The design of suitable parameters can enable a dual-transmitter-single-receiver system to achieve constant-current output over different coupling ranges, so the system can maintain relatively constant power over large coupling variations. Finally, a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2400-\mathrm{W}$</tex> model is built to verify the theoretical analysis. The experimental results show that theoretical analysis. The experimental results show that when the system misalignment occurs, with the misalignment ranging from <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$0 \%$</tex> to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$50 \%$</tex>, the output power remains between 2400 W to 2420 W.