This article proposes a new, computationally inexpensive calculation approach for eddy current losses in nonmagnetic pressure fingers for open-circuit operation. The field calculation was presented in a previous article (Fricke et al. , 2019) and is based on a Schwarz–Christoffel mapping. An alternative 2-D FEA field calculation is presented. The loss model discretizes the pressure fingers similar to 2-D FEA and solves an electric network, while allowing for geometric different alterations, such as slits, to be considered. The proposed approach takes only around one second to compute, with the loss model itself taking only around 60 ms. Comparisons to a time-step 3-D FEA model are used to validate the new method.

中文翻译：

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大型凸极同步电机压力指损失的快速计算方法


本文提出了一种新的、计算成本低廉的计算方法，用于计算开路操作的非磁性压力指中的涡流损耗。场计算已在之前的文章中介绍过（Fricke et al., 2019），并且基于 Schwarz-Christoffel 映射。提出了另一种二维 FEA 现场计算。损耗模型类似于 2-D FEA 离散化压力指并求解电网，同时允许考虑不同的几何变化，例如狭缝。所提出的方法只需要大约一秒的时间来计算，损失模型本身只需要大约 60 毫秒。与时间步 3D FEA 模型的比较用于验证新方法。