This article proposes a new high-fidelity simulation model of an induction motor (IM) based on finite-element analysis (FEA). The proposed model enables fast and accurate IM simulation with the inverter circuit model and control algorithm. That is, the proposed model can represent non-ideal features of IM, such as magnetic saturation, spatial harmonics, skew, and saturation-induced saliency in high accuracy. To construct the proposed model, a dq equivalent circuit of the squirrel cage rotor is introduced. Based on this, the static FEA is conducted which can accelerate the model construction compared to the conventional time-stepping FEA technique. Then, a flux-based IM model is established, which has advantages on speed, accuracy, and memory size in the simulation. To verify the effectiveness of the proposed model, the models are constructed for two commercial IMs used for the industrial drive. IM control algorithms are tested in various operating conditions on the proposed model. The results are compared with the time-stepping FEA and the experiment for the verification of the proposed model.

中文翻译：

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基于有限元分析的高保真感应电机仿真模型


本文提出了一种基于有限元分析 (FEA) 的新型感应电机 (IM) 高保真仿真模型。所提出的模型能够利用逆变器电路模型和控制算法进行快速、准确的 IM 仿真。也就是说，所提出的模型可以高精度地表示 IM 的非理想特征，例如磁饱和、空间谐波、偏斜和饱和引起的显着性。为了构建所提出的模型，引入了鼠笼转子的 dq 等效电路。在此基础上进行静态有限元分析，与传统的时间步进有限元分析技术相比，可以加速模型构建。然后建立了基于通量的IM模型，该模型在仿真速度、精度和内存大小方面具有优势。为了验证所提出模型的有效性，针对用于工业驱动的两个商业 IM 构建了模型。 IM 控制算法在所提出的模型的各种操作条件下进行了测试。将结果与时间步长有限元分析和实验进行比较，以验证所提出的模型。