In conventional finite element simulations, foil windings with thin foils and with a large number of turns require many mesh elements. This renders models quickly computationally infeasible. This paper uses a homogenized foil winding model and approximates the voltage distribution in the foil winding domain by globally supported polynomials. This way, the small-scale structure in the foil winding domain does not have to be resolved by the finite element mesh. The method is validated successfully for a stand-alone foil winding example and for a pot inductor example. Moreover, a transformer equipped with a foil winding at its primary side is simulated using a field-circuit coupled model.

翻译：在传统有限元仿真中，包含薄箔片且匝数较多的箔式绕组需要大量网格单元，这导致模型计算量迅速达到不可行的程度。本文采用均质化箔式绕组模型，通过全局支撑多项式近似箔式绕组区域内的电压分布。采用该方法时，箔式绕组区域的小尺度结构无需通过有限元网格进行解析。该方法的有效性在独立箔式绕组算例和罐形电感算例中均得到了成功验证。此外，本文还采用场路耦合模型对初级侧配置箔式绕组的变压器进行了仿真。