Homogenization techniques are an appealing approach to reduce computational complexity in systems containing coils with large numbers of high temperature superconductor (HTS) tapes. Resolving all the coated conductor layers and turns in coils is often computationally prohibitive. In this paper, we extend the foil conductor model, well-known in normal conducting applications, to applications with insulated HTS coils. To enhance the numerical performance of the model, the conventional formulation based on A-V is extended to J-A-V. The model is verified to be suitable for simulations of superconductors and to accelerate the calculations compared to resolving all the individual layers. The performance of both the A-V and J-A-V formulated models is examined, and the J-A-V variant is concluded to be advantageous.
翻译:均质化技术是降低包含大量高温超导(HTS)带材线圈系统计算复杂度的一种有效方法。解析线圈中所有涂层导体层和匝数在计算上通常难以实现。本文将在常规导电应用中广为人知的箔导体模型扩展至绝缘高温超导线圈的应用中。为提升模型的数值性能,将基于A-V的传统公式扩展为J-A-V公式。经验证,该模型适用于超导体模拟,且相较于解析所有独立层能显著加速计算。本文对A-V与J-A-V两种公式化模型的性能进行了检验,结论表明J-A-V变体更具优势。