COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 36 Issue 3

Modelling of magnetic and electric circuits

Andrzej Demenko, Anouar Belahcen, Kay Hameyer, Wojciech Pietrowski, Stefan Brock

Effect of mechanical stress on different iron loss components up to high frequencies and magnetic flux densities

Jan Karthaus, Simon Steentjes, Nora Leuning, Kay Hameyer

The purpose of this paper is to study the variation of the specific iron loss components of electrical steel sheets when applying a tensile mechanical load below the yield…

Enhanced phase-domain synchronous machine model including saturation

Christoph Schmuelling, Stefan Kulig

The phase-domain synchronous machine model has advantages compared to the d/q model, as no transformation of currents is necessary at each time step in a network analysis. The…

Parameter adaptation of simplified switched reluctance motor model using Newton and Gauss-Newton signal fitting methods

Bogdan Fabianski, Krzysztof Zawirski

The paper is concerned about parameter adaptation of a novel, simplified and nonlinear switched reluctance motor (SRM) model. The purpose of the presented on-line procedure is to…

Eddy current sensor simulation

Neven Bulic, Livio Šušnjic

This paper aims to present a simulation concept and an experimental verification of a novel sensor design for the shaft position measurement based on the eddy current principle…

Infinite-time linear–quadratic optimal control of the BLDC motor exploiting a nonlinear finite element model

Jakub Bernat, Slawomir Jan Stepien, Artur Stranz, Paulina Superczynska

This paper aims to present a nonlinear finite element model (FEM) of the Brushless DC (BLDC) motor and the application of the optimal linear–quadratic control-based method to…

A nonlinear magnetic circuit model for periodic eddy current problems using T,ϕ-ϕ formulation

Rene Plasser, Gergely Koczka, Oszkár Bíró

A transformer model is used as a benchmark for testing various methods to solve 3D nonlinear periodic eddy current problems. This paper aims to set up a nonlinear magnetic circuit…

Calculation of eddy current and hysteresis losses during transient states in laminated magnetic circuits

Marek Golebiowski

The purpose of this paper is to develop the method of taking the eddy current losses in the laminated magnetic circuits into account during implicit transient calculations. The…

Harmonic losses in high-speed PM synchronous machines

Irina Yu. Kruchinina, Yuvenaliy Khozikov, Alexandr Liubimtsev, Valentina Paltceva

The purpose of this paper is the development of a new numerical method for the calculation of the air-gap magnetic flux harmonics in synchronous machines with permanent magnet…

Impact of supply voltage variations on external magnetic field emitted by induction machines

Mohamed Omar Younsi, Olivier Ninet, Fabrice Morganti, Jean-Philippe Lecointe, Farid Zidat, Matthieu Buire

This paper aims to study the influence of supply voltage variations on the external magnetic field emitted by grid-powered induction machines (IMs).

Three-phase four-wire shunt active power filter working simultaneously as energy conditioner

Andrzej Szromba

The purpose of this study is to find a control method for three-phase four-wire shunt active power filters, which uses a load-equivalent conductance for obtaining a reference…

A new approach to steady state analysis of nonlinear electrical circuits

Tadeusz Sobczyk, Michał Radzik

The purpose of this study is to identify a novel methodology for direct calculation of steady-state periodic solutions for electrical circuits described by nonlinear differential…

Waveform relaxation–Newton method to determine steady state of an electromagnetic structure: Application to a three-phase transformer

Guillaume Caron, Thomas Henneron, Francis Piriou, Jean-Claude Mipo

The purpose of this study is to determine the steady state of an electromagnetic structure using the finite element method (FEM) without calculation of the transient state. The…

Towards a transformer transient model as a lumped-distributed parameter system

Sergey E. Zirka, Yuriy I. Moroz, Ebrahim Rahimpour

The purpose of this study is to develop a topological model of a three-phase, three-limb transformer for low-frequency transients. The processes in the core limbs and yokes are…

Magnetic and capacitive couplings influence on power losses in double circuit high voltage overhead transmission line

Jacek Klucznik, Zbigniew Lubosny, Krzysztof Dobrzynski, Stanislaw Czapp, Robert Kowalak, Robert Trebski, Stanislaw Pokora

The paper aims to discuss problems of power and energy losses in a double-circuit overhead transmission line. It was observed from energy meters’ readings, that in such a line…

Modelling anisotropy in non-oriented electrical steel sheet using vector Jiles–Atherton model

Brijesh Upadhaya, Floran Martin, Paavo Rasilo, Paul Handgruber, Anouar Belahcen, Antero Arkkio

Non-oriented electrical steel presents anisotropic behaviour. Modelling such anisotropic behaviour has become a necessity for accurate design of electrical machines. The main aim…

Comparison of static hysteresis models subject to arbitrary magnetization waveforms

Martin Petrun, Simon Steentjes, Kay Hameyer, Drago Dolinar

This paper aims to compare different static history-independent hysteresis models (mathematical-, behavioural- and physical-based ones) and a history-dependent hysteresis model in…

Eliminating short switching cycles when using hysteresis control of resistance spot welding systems

Jernej Černelič, Robert Brezovnik, Primož Sukič, Martin Petrun

This paper aims to present two hysteresis-control algorithms designed for medium-frequency, direct-current, resistance-spot-welding (MFDC RSW) systems. The first proposed control…

Influence of the electrical circuit configurations of a DVR coupling transformer with a magnetic bypass

Virginie Majchrzak, Guillaume Parent, Jean-François Brudny, Valentin Costan, Philippe Guuinic

For the proposed coupling transformer, a magnetic bypass based on the virtual air gap principle is realized by inserting auxiliary windings in a return leg added to a standard…

Comparative analysis of the three- and six-phase fractional slot concentrated winding permanent magnet machines

Cezary Jedryczka

The purpose of this paper is to analyse and compare the functional parameters of three- and six-phase permanent magnet synchronous motors (PMSM) with fractional-slot concentrated…

Minimization of a SynRel’s oscillating torque by calculation of the appropriate skew angle

Javier Martinez, Klaus Krischan, Annette Muetze

Synchronous Reluctance (SynRel) motors are known to suffer from excessive torque ripples. The classical way to avoid this drawback of the motor is skewing the slots. This paper…