【摘要】 随着电动汽车无线充电技术的发展,充电线圈的类型越来越多。然而,由于不同线圈对磁通分布的需求各异,不同种类产品的发射端和接收端之间难以实现互操作,阻碍了不同技术路线间的互联互通。为准确评价不同线圈间的互操作性,该文首先选择线圈间基础互感值作为互操作性评价指标,分析其与线圈互操作性之间的关系;然后,通过量规设备开路电压计算基础互感值的方法,解决基础互感值不易直接测量的问题;接着,针对SAE J2954标准中量规设备参数设计方法不明确的问题,分析不同参数对评价结果的影响,进一步提出一套量规设备参数优化设计方法,明确了不同参数的取值与设计原则;最后,设计了一套用于矩形线圈互操作性评价的量规设备样机,评价结果与功率测试结果相符,证明了提出的量规设备设计方法的有效性。更多还原

【Abstract】 With the development of wireless charging technology for electric vehicles, more and more types of charging coils emerge. However, due to the different magnetic flux distribution, it is difficult to ensure the interoperability between the transmitter and receiver of different products, which hinders the interconnection between products. To accurately evaluate the interoperability between different coils, the fundamental mutual inductance(FMI) is selected as the indicator, and the relationship between the FMI and the coil interoperability is analyzed. Then, the open-loop voltage of the gauge device is used to calculate the FMI, which makes the FMI be measured easily. Aiming at the problem that the parameter design method of gauge device in the standard SAE j2954 is not clear, this paper analyzes the influence of different parameters on the evaluation results and proposes an optimization method for the gauge device. Finally, a prototype of the gauge device is designed. The evaluation results prove the effectiveness of the proposed design method of the gauge device.更多还原