Superconducting devices have been widely studied over these years. Their application can be found in cables for electric power transmission, energy storage systems, magnetic levitation, electric machines, and fault current limiters. The literature presents some formulations to model the superconductors’ behavior using the finite element method (FEM), such as the H, the AV, and the T formulations, among others. Many superconducting devices have been simulated and designed using some of these formulations. However, none method available offers a coupling between an electric power system, simulated using electrical lumped parameters, to the superconducting FEM model. In this context, this work introduces a methodology for coupling superconducting devices in FEM to lumped parameters composing the power system. Here, a case study with a Saturated Iron Core Superconducting Fault Current Limiter was presented to apply the proposed methodology. This research analyzes the influence of the self and external fields in the superconducting coil on its critical current density. Moreover, it investigates the DC-biased coil voltage drop and the superconducting resistance. Besides, the paper presents the simulations of short circuits for various DC currents applied to the superconducting coil. Short-circuit tests were performed for validating the simulation results, and it showed a maximum error of 15% for the compared points.

这些年来，超导器件得到了广泛的研究。它们的应用可以在电力传输，能量存储系统，磁悬浮，电机和故障限流器的电缆中找到。文献提出了一些使用有限元方法（FEM）建模超导体行为的公式，例如H，AV和T公式。已经使用这些公式中的一些对许多超导器件进行了仿真和设计。但是，没有可用的方法提供使用集总参数模拟的电力系统与超导FEM模型之间的耦合。在这种情况下，这项工作介绍了一种将FEM中的超导设备耦合到组成电力系统的集总参数的方法。这里，提出了使用饱和铁芯超导故障限流器的案例研究，以应用所提出的方法。这项研究分析了超导线圈中自身和外部磁场对其临界电流密度的影响。此外，它还研究了直流偏置线圈的压降和超导电阻。此外，本文还介绍了应用于超导线圈的各种直流电流的短路仿真。进行了短路测试以验证仿真结果，并且比较点显示最大误差为15％。它研究了直流偏置线圈的压降和超导电阻。此外，本文还介绍了应用于超导线圈的各种直流电流的短路仿真。进行了短路测试以验证仿真结果，并且比较点显示最大误差为15％。它研究了直流偏置线圈的压降和超导电阻。此外，本文还介绍了应用于超导线圈的各种直流电流的短路仿真。进行了短路测试以验证仿真结果，并且比较点显示最大误差为15％。