Electric vehicle dynamic wireless charging system and coupling system optimization method

The invention discloses an electric vehicle dynamic wireless charging system and a coupling coefficient optimization method. The method comprises the following steps: establishing a single-transmitting-pair three-receiving-coil structure system model; setting coil constraint conditions and main parameters; calculating the self-inductance of each coil according to a rectangular coil calculation formula; under different coil offsets, calculating a mutual inductance value between each receiving coil and the transmitting coil according to a mutual inductance calculation formula; setting a coupling coefficient and a coupling coefficient volatility requirement; calculating a coupling coefficient and a coupling coefficient fluctuation ratio of the transmitting coil and the receiving coil according to a formula; judging whether the coupling coefficient and the coupling coefficient fluctuation ratio meet requirements or not; if the requirements are met, storing the parameters meeting the conditions; and if not, adjust