COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 34 Issue 2

A new analytical approach to determine slotting based eddy current losses in permanent magnets of PMSM taking into account axial and circumferential segmentation

Cornelius Bode, Wolf-Rüdiger Canders, Markus Henke

The purpose of this paper is to calculate slotting-based eddy currents in permanent magnet excited synchronous machine (PMSM) taking into account axial and circumferential…

Inductance calculation of high-speed slotless permanent magnet machines

Sultan Jumayev, Aleksandar Borisavljevic, Konstantin Boynov, Juha Pyrhönen, Elena A. Lomonova

The purpose of this paper is to give a simple, fast and universal inductance calculation approach of slotless-winding machines and comparison of inductances of toroidal…

Magnetic-geared motors with high transmission torque density

Noboru Niguchi, Katsuhiro Hirata

Early magnetic-geared motors have a high transmission torque density. However, the torque due to the coil is low because the permanent magnets in the stator become a large…

Simplified human phantoms for narrowband and ultra-wideband body area network modelling

Łukasz Januszkiewicz, Sławomir Hausman

The purpose of this paper is to compare the properties of simplified physical and corresponding numerical human body models (phantoms) and verify their applicability to path loss…

Optimization of the synchronous motor with hybrid permanent magnet excitation system

Łukasz Knypiñski, Lech Nowak, Andrzej Demenko

The purpose of this paper is to elaborate an algorithm and the software for the rotor structure optimization of the permanent magnet synchronous motor (PMSM) with a magnet…

Analysis of the stator topology impact on cogging torque for surface permanent magnet motor

Lidija Petkovska, Goga Cvetkovski, Paul Lefley

The purpose of this paper is to investigate the impact of the stator core design for a surface permanent magnet motor (SPMM) on the cogging torque profile. The objective is to…

Combined FE and Particle Swarm algorithm for optimization of high speed PM synchronous machine

Anouar Belahcen, Floran Martin, Mohammed El-Hadi Zaim, Emad Dlala, Zlatko Kolondzovski

The purpose of this paper is to optimize the stator slot geometry of a high-speed electrical machine, which is used as an assist for a turbocharger. Meanwhile, the suitability of…

Electromagnetic and thermal parameter identification method for best prediction of temperature distribution on transformer tank covers

Patricia Penabad Durán, Paolo Di Barba, Xose Lopez-Fernandez, Janusz Turowski

The purpose of this paper is to describe a parameter identification method based on multiobjective (MO) deterministic and non-deterministic optimization algorithms to compute the…

Decomposition of the compromise objective function in the permanent magnet synchronous motor optimization

Lech Nowak, Łukasz Knypiński, Cezary Jedryczka, Krzysztof Kowalski

The purpose of this paper is to elaborate an algorithm and the computer code for the optimization of the permanent magnet synchronous motor (PMSM) including the shaft torque, the…

Shielding from external magnetic fields by rotating magnetic conducting cylindrical shells

Marcin Ziolkowski, Stanislaw Gratkowski

In many different engineering fields often there is a need to protect regions from electromagnetic interference. According to static and low-frequency magnetic fields the common…

Comparison of magnetic coupling structures for IPT systems

Emanuel G. Marques, André M.S. Mendes

Inductive power transfer (IPT) is a hands free user charging system, which allows the transfer of energy over a large air gap without physical contact. The purpose of this paper…

Influence of the closing rotor slots on the additional losses in the induction motor

Maria Dems, Krzysztof Komeza, Slawomir Wiak, Sara Fernández Coya

– The purpose of this paper is to present the distribution of the magnetic field and additional losses analysis of the induction motors (IM) with opened and closed rotor slots.

Local overheating of transformers with high currents

Robert Sitar, Žarko Janić, Željko Štih

– The purpose of the paper is to compare losses and temperatures in power transformer tanks for different high current lead arrangements.

Design of permanent magnet synchronous motors including thermal aspects

Marcin Lefik

The purpose of this paper is to include thermal analysis in the design process of permanent magnet synchronous motor (PMSM). The additional objective is a comparison of PMSM with…

Thermal analysis and efficiency of an induction motor driven by a fault-tolerant multilevel inverter using FEM

Bruno R. O. Baptista, André M.S. Mendes, Sérgio M.A. Cruz

The purpose of this paper is to present a comparative study of the thermal behavior and efficiency of an induction motor fed by a fault-tolerant Three-Level Neutral Point Clamped…

Electromagnetic fields in body by wireless inductive system

Ping-Ping Ding, Lionel Pichon, Laurent Bernard, Adel Razek

The purpose of this paper is to calculate the induced electromagnetic fields in human body exposed to the wireless inductive charging system of electric vehicles has been…

Analysis of FE: Mesh discretization for faster and more accurate probabilistic simulations: applied to cogging torque calculations in electrical machines

Peter Offermann, Kay Hameyer

The consideration of uncertainties in the numerical computation of electromagnetic fields has recently gained a lot of attention. Most publications focus on the creation of models…