为了给电动汽车再次充电,需要结构紧凑、轻量化的非接触式动力转换系统。根据高效率、大气隙、有一定的误接宽容度的准则,开发了一种采用串并联电容器、具有矩形铁芯和双边缠绕的新型变换器,其尺寸为240mm×300mm×40mm,气隙为(70±20)mm,横向误接宽容度为±125mm,次级绕组质量为4.6kg。在次级绕组连接了充电控制电路和铅酸电池的情况下,测量了该系统的性能,在正常位置上获得了1.5kW的输出功率和95%的效率。结果表明:该系统结构紧凑、轻量化,满足了上述判据。 In order to charge the electric vehicle again, a compact and lightweight non-contact power conversion system is required. According to the criteria of high efficiency, air gap and some misoperation tolerance, a novel converter with a series-shunt capacitor, rectangular core and bilateral winding has been developed. The size of the converter is 240mm × 300mm × 40mm. The air gap is (70 ± 20) mm, lateral miscibility latitude ± 125mm, the secondary winding mass is 4.6kg. With the secondary winding connected to a charge control circuit and a lead-acid battery, the system’s performance was measured with an output of 1.5 kW and a 95% efficiency in its normal position. The results show that the system is compact and lightweight, which satisfies the above criterion.