COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 32 Issue 4
Table of contents - Special Issue: Modelling and simulation of nonlinear magnetic and electric circuits
Guest Editors: Andrzej Demenko, Kay Hameyer, Wojciech Pietrowski, Livio unji, Krzysztof Zawirski
Strategies for balancing exploration and exploitation in electromagnetic optimisation
Song Xiao, Mihai Rotaru, Jan K. SykulskiElectromagnetic design utilising finite element or similar numerical methods is computationally expensive, thus efficient algorithms reducing the number of objective function…
Optimization of the permanent magnet brushless DC motor employing finite element method
Łukasz Knypiński, Lech NowakThe purpose of this paper is to elaborate the algorithm and computer code for the structure optimization of the outer rotor permanent magnet brushless DC motor and to execute…
Hybrid numerical method for effective design of silicon micromotor
Slawomir Wiak, Krzysztof SmółkaThis paper aims to focus on the hybrid numerical method for effective design of silicon micromotor.
A polynomial chaos meta‐model for non‐linear stochastic magnet variations
Peter Offermann, Kay HameyerDue to the production process, arc segment magnets with radial magnetization for surface‐mounted permanent‐magnet synchronous machines (PMSM) can exhibit a deviation from the…
A posteriori error estimator for harmonic A‐φ formulation
Zuqi Tang, Yvonnick Le Menach, Emmanuel Creuse, Serge Nicaise, Francis Piriou, Nicolas NemitzIn this paper, the aim is to propose a residual‐based error estimator to evaluate the numerical error induced by the computation of the electromagnetic systems using a finite…
Calculation of the flux distribution of three phase five limb power transformers considering nonlinear material properties
Björn Riemer, Enno Lange, Kay HameyerDepending on the load the flux‐density distribution inside power transformers core shows significant local variations due to stray fluxes which enter the transformer core. As…
Modeling and experimental verification of a flexible rotor/AMB system
Goranka Štimac, Sanjin Braut, Neven Bulić, Roberto ŽigulićIn this paper, the aim is to present a modeling strategy for a flexible rotor/active magnetic bearing (AMB) system with non‐collocation. Special attention is paid to the vibration…
Model of dynamic operation of stepper linear reluctance motor based on field approach
Jacek MikołajewiczThe aim of this paper is to analyse the influence of various methods of controlling a stepper linear reluctance motor on the dynamic parameters of this motor.
Identification techniques of functions approximating magnetization characteristics of synchronous machines
Adam Warzecha, Witold MazgajThe aim of the paper is to present the approximation methods of the magnetizing characteristics of the salient pole synchronous machines with the fundamental MMF harmonics.
3D analysis of influence of stator winding asymmetry on axial flux
Wojciech PietrowskiThe diagnostics of electrical machines is a very important task. The paper seeks to present a study and analysis of stator winding asymmetry in induction motors. The purpose of…
Application of artificial neural network for adaptive speed control of PMSM drive with variable parameters
Tomasz Pajchrowski, Krzysztof ZawirskiThe aim of the research was to find out a method of adaptive speed control robust against variation of selected parameters of system like moment of inertia, time constant of…
Impact of windings switching on torque‐speed curves of PM BLDC motor
Krzysztof Krykowski, Janusz Hetmańczyk, Dawid MakiełaWhen phase windings of brushless DC motor are switched, additional voltage drops across inductances of main circuit appear. These drops lead to, among other effects, increase of…
Evaluating performances of electric machines supplied by the sinusoidal and pulse width modulated voltages
Gorazd Štumberger, Bojan Štumberger, David Stojan, Željko Plantić, Klemen Deželak, Matjaž Čemažar, Drago DolinarMany authors reported the decrease of performances when electric machines and electromagnetic devices were supplied by pulse width modulated (PWM) voltages. However, these…
Sizing of active power filters using some optimization strategies
Dariusz Grabowski, Marcin Maciążek, Marian PaskoThe change in the way of active power filters (APF) location can lead to overall cost reduction due to less number or less power of APFs required. The goal of this paper was to…
Power electronics active shunt filter with controlled dynamics
Michał GwóźdźThe aim of the research was to find a structure of the power electronics controlled current source with extended pass band, which would better match a source output current within…
Inverters operation in rigid and autonomous grid
Lesław Gołębiowski, Marek Gołębiowski, Damian MazurThe aim of this paper is to develop the method of optimal control of the three‐phase inverter system for autonomous and power grid operation. The presented method will also allow…
Improved iron loss calculation for non‐centered minor loops
Mircea Fratila, Abdelkader Benabou, Abdelmonaïm Tounzi, Maxime DessoudePulse width modulated (PWM) inverters are widely used to feed induction motors for variable speed applications. The use of PWM power supplies induces additional magnetic losses in…
Losses in the axial‐flux permanent‐magnet machine housing
Miha Šrekl, Blaž Bratina, Mykhaylo Zagirnyak, Boris Benedičič, Damijan MiljavecThe purpose of this paper is the investigation of eddy currents induced in the axial‐flux permanent‐magnet machine housing by the leakage flux and the introduction of permanent…
Stochastic post‐processing calculation of iron losses – application to a PMSM
Mircea Fratila, Rindra Ramarotafika, Abdelkader Benabou, Stéphane Clénet, Abdelmonaïm TounziTo take account of the uncertainties introduced on the magnetic properties during the manufacturing process, the present work aims to focus on the stochastic modelling of iron…
Comparison between the simplified and the Jiles‐Atherton model when accounting for the hysteresis losses of a transformer
Klemen Deželak, Drago Dolinar, Gorazd ŠtumbergerThe investigation was aimed at magnetically‐nonlinear dynamic model of a single‐phase transformer, where the effects of dynamic hysteresis losses are accounted for by a simplified…
Hysteresis curves of a resistance spot welding transformer
Martin Petrun, Krzysztof Chwastek, Drago DolinarThe aim of the paper is to provide a simple and reliable hysteresis model for prediction of magnetization curves of a resistance spot welding transformer (RSWT) core, operating in…
SMA actuators: theory, performance curves and design problems
Krzysztof Kluszczyński, Marek KciukThe main purpose of the paper is to develop model basing on the modified and properly‐adopted Fermi‐Dirac equation which combines proper accuracy with adequate simplicity as well…
Deterministic model of electric arc furnace – a closed form solution
Dariusz Grabowski, Janusz WalczakElectric arc furnaces are usually modelled using combined models which divide the phenomenon taking place in real objects into a deterministic and a stochastic or chaotic parts…
Identification of current flow depending on the mechanical deformation in a stranded cable
Youcef Zeroukhi, Ewa Napieralska Juszczak, Krzysztof Komeza, Fabrice Morganti, Guillaume VegaIn the majority of devices for measuring the resistance of wires or cables, the supplying voltage is applied via some clamping arrangement. Thus, current enters the bundle of…
ISSN:
0332-1649Online date, start – end:
1982Copyright Holder:
Emerald Publishing LimitedOpen Access:
hybridEditor:
- Prof Jan Sykulski