COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 42 Issue 4

Guest editorial: Electromagnetic modelling exploiting fields and circuits

Christian Kreischer, Andrzej Demenko, Wojciech Pietrowski, Kay Hameyer

Analysis of losses in the high-speed PM BLDC motor with open slot stator core made of amorphous soft magnetic material

Marek Hreczka, Roman Kolano, Aleksandra Kolano-Burian, Wojciech Burlikowski, Janusz Hetmańczyk

The purpose of this paper is to verify results related to losses in the core of a brushless DC prototype motor, obtained using its computer FE models, by experimental tests on…

Parameter identification for MTPA control based on a nonlinear d-q dynamic IPMSM model

Mitja Garmut, Simon Steentjes, Martin Petrun

Small highly saturated interior permanent magnet- synchronous machines (IPMSMs) show a very nonlinear behaviour. Such machines are mostly controlled with a closed-loop cascade…

Comparing two topology transformer hysteresis models derived from DC hysteresis measurements

Dennis Albert, Lukas Daniel Domenig, Philipp Schachinger, Klaus Roppert, Herwig Renner

The purpose of this paper is to investigate the applicability of a direct current (DC) hysteresis measurement on power transformer terminals for the subsequent hysteresis model…

Comparison of population-based algorithms for parameter identification for induction machine modeling

Moritz Benninger, Marcus Liebschner, Christian Kreischer

Monitoring and diagnosis of fault cases for squirrel cage induction motors can be implemented using the multiple coupled circuit model. However, the identification of the…

Analysis of the convergence of Newton method by finite element simulation with vector hysteresis stop model

Xiao Xiao, Fabian Müller, Martin Marco Nell, Kay Hameyer

The goal of this research is to investigate the convergence behavior of the Newton iteration, when solving the nonlinear problem with consideration of hysteresis effects…

Efficient high-resolution electric and magnetic field simulations inside the human body in the vicinity of wireless power transfer systems with varying models

Norman Haussmann, Robin Mease, Martin Zang, Steven Stroka, Hendrik Hensel, Markus Clemens

Magneto-quasi-static fields emanated by inductive charging systems can be potentially harmful to the human body. Recent projects, such as TALAKO and MILAS, use the technique of…

Influence of the geometric parameters of a vertical rotational single-sheet tester on sample field homogeneity

Guilherme Tolentino, Guillaume Parent, Olivier Ninet, Mathieu Rossi, Jean Vianei Leite, Jonathan Blaszkowski

The horizontal rotational single-sheet tester (RSST) suffers from weaknesses such as the reduced size of test samples, measurement disturbances due to magnetic flux leakage and…

Power density improvement of axial flux permanent magnet synchronous motor by using different magnetic materials

Mohamed Amine Hebri, Abderrahmane Rebhaoui, Gregory Bauw, Jean-Philippe Lecointe, Stéphane Duchesne, Gianluca Zito, Abdelli Abdenour, Victor Mediavilla Santos, Vincent Mallard, Adrien Maier

The purpose of this paper is to exploit the optimal performances of each magnetic material in terms of low iron losses and high saturation flux density to improve the efficiency…

Design advantages and analysis of a novel five-phase doubly-fed induction generator

Roland Ryndzionek, Michal Michna, Filip Kutt, Grzegorz Kostro, Krzysztof Blecharz

The purpose of this paper is to provide an analysis of the performance of a new five-phase doubly fed induction generator (DFIG).

Design and dimensioning of a test bench for investigating the relationship between critical temperature and axial mechanical stress of GdBaCuO tape conductors

Johannes Liebrich, Christian Kreischer

Superconductors offer several advantages compared with conventional conductors. However, it is not clear at this stage whether these types of conductors provide the same…

Improved methods for stator end winding leakage inductance calculation

Grzegorz Kostro, Michal Michna, Filip Kutt, Roland Ryndzionek

Calculating the stator end-winding leakage inductance, taking into account the rotor, is difficult due to the irregular shape of the end-winding. The end-winding leakage may…