机场电动摆渡车动态无线充电耦合线圈抗偏特性OA

The airport electric shuttle bus has good adaptability to the dynamic wireless power transmission technology of electric vehicles due to its fixed usage environment and generally low ground clearance design.To further investigate the influence of coupling coil configuration on the anti-bias transmission performance,an LCC-S compensation circuit adapted for dynamic wireless charging of electric vehicles is used to analyze the anti-bias performance of the DD type coil of an airport electric shuttle bus from Weihai Guangtai.A testing scheme is designed based on longitudinal and lateral offset according to the spacing between transmission coils and the characteristics of the airport shuttle driving environment.Through Ansoft Maxwell and Simplorer joint simulation analysis,it is found that when the DD coil is optimized with equal increasing and variable turn spacing rounded corners and combines with I-type ferrite core,the output power of the coil and the maximum transmission efficiency reach 7.31 kW and 91.3％,respectively,without displacement.Even when the coupling coil is offset by 200 cm in the X-axis and 50 cm in the Y-axis,the output power can still reach 6.83 kW and the transmission efficiency reaches 85.3％,meeting the anti-bias performance transmission requirements of the national electric vehicle wireless charging magnetic coupling coil.