Improved Parametric Representation of IM from FEM for More Accurate Torque Predictions: Simulations and Experimental Validations
Artikel i vetenskaplig tidskrift, 2024

In this work, an updated methodology to determine the parameters of three-phase induction machines (IMs) is developed and presented. The goal of this determination is to achieve a better model representation of induction machines for the usage of a circuit-based control system. First, the theory of the T-form model (TFM) and the inverse Γ-form model (IGFM) are reviewed. The former review becomes the foundation of the following interpretation of the developing methods for identifying the needed parameters. Next, a 2D electromagnetic finite element method (FEM) model of a 15kW IM is utilized to demonstrate the strength of the methodology on a real machine. Furthermore, a comparison of results using the conventional test and the newly proposed method is presented, demonstrating the strength of the proposed procedure with enhanced accuracy for the torque and slip prediction. Lastly, experimental results using a 15kW IM are utilized to demonstrate the usefulness of the proposed parameter determination procedure.

Finite Element Method (FEM)

Integrated circuit modeling

parameter determination


Stator windings



induction machine (IM)

Perfect field-oriented control (PFOC)


Finite element analysis

Equivalent circuits


Meng-Ju Hsieh

Chalmers, Elektroteknik, Elkraftteknik

Emma Grunditz

Chalmers, Elektroteknik, Elkraftteknik

Torbjörn Thiringer

Chalmers, Elektroteknik, Elkraftteknik

2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe, EEEIC / I and CPS Europe 2022

00939994 (ISSN) 19399367 (eISSN)

Vol. In Press


Teknisk mekanik

Övrig annan teknik

Annan elektroteknik och elektronik



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