磁耦合谐振式电动汽车无线充电技术耦合线圈抗偏性设计  

Design of Anti-Offset Coupling Coil for Magnetically Coupled Resonant Wireless Charging Technology of Electric Vehicles

作　　者：王鑫 赵炜华 卫军朝 WANG Xin;ZHAO Weihua;WEI Junzhao(School of Vehicle Engineering,Xi’an Aeronautical Institute,Xi’an 710077,China)

机构地区：[1]西安航空学院车辆工程学院,陕西西安710077

出　　处：《测试技术学报》2024年第1期85-92,共8页Journal of Test and Measurement Technology

基　　金：陕西省科技厅重点产业创新链(群)重点研发计划资助项目(2020ZDLGY16-01)。

摘　　要：通过研究无线充电磁耦合谐振线圈传输性能影响因素,建立电动汽车无线充电磁耦合线圈联合仿真模型。对比圆形和方形不同构型耦合线圈在偏移情况下耦合系数和传输效率的仿真结果,表明圆形线圈在侧向偏移10 cm的情况下,仍能保证70%左右的传输效率,其输出功率远高于方形线圈。此外,通过优化圆形线圈结构参数,并增加E型铁氧体磁芯,仿真证明其优化电磁耦合线圈即使在侧向偏移达到20 cm时,输出功率也达到了2996.4 kW,保证85%的传输效率,达到国家电动汽车无线充电磁耦合线圈的抗偏移性能传输要求。This paper establishes a joint simulation model for the magnetically coupled resonant coil in electric vehicle wireless charging by analyzing influencing factors of coil transmission performance.According to the simulation results comparing the coupling coefficient and transmission efficiency of different circular and square coupling coils in the case of offset,it is shown that the circular coil can still guarantee about 70%transmission efficiency in the case of lateral offset of 10 cm,and its output power is much higher than that of the square coil.And the paper optimizes the structure parameters of the circular coil,adds the E-type ferrite core,and optimizes the output power of the electromagnetic coupling coil by simulation,even when the lateral offset reaches 20 cm,the output power also reaches 2996.4 kW,ensuring 85% of the transmission efficiency,and meeting the anti-offset performance transmission requirements of the national electric vehicle wireless charging magnetic coupling coil.

关 键 词：磁耦合谐振线圈 联合仿真 抗偏移性 

分 类 号：U469.72[机械工程—车辆工程]