COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 39 Issue 5

Preface

Noureddine Takorabet

Wideband performance limitations of the C-FDTD in the discretization impoverishment of a curved surface

Lucas Lobo Latorre Fortes, Sandro Trindade Mordente Gonçalves

This paper aims to explore the limitations of the conformal finite difference time-domain method (C-FDTD or Dey–Mittra) when modeling perfect electric conducting (PEC) and…

Unstructured PEEC method with the use of surface impedance boundary condition

Gerard Meunier, Quang-Anh Phan, Olivier Chadebec, Jean-Michel Guichon, Bertrand Bannwarth, Riccardo Torchio

This paper aims to study unstructured-partial element equivalent circuit (PEEC) method for modelling electromagnetic regions with surface impedance condition (SIBC) is proposed…

A bicomplex finite element method for wave propagation in homogeneous media

Thomas Reum, Hannes Toepfer

The purpose of this paper is to present the advantageous applicability of the bicomplex analysis in the context of the Finite Element Method (FEM). This method can be applied for…

Design techniques for cogging torque reduction in a fractional-slot PMBLDC motor

Lidija Petkovska, Paul Lefley, Goga Vladimir Cvetkovski

This paper presents the design techniques applied to a novel fractional-slot 6/4 pole permanent magnet brushless direct current (PMBLDC) motor, for cogging torque reduction. The…

Model order reduction techniques applied to magnetodynamic T-Ω-formulation

Fabian Müller, Lucas Crampen, Thomas Henneron, Stephane Clénet, Kay Hameyer

The purpose of this paper is to use different model order reduction techniques to cope with the computational effort of solving large systems of equations. By appropriate…

Simulation of induction thermography NDT technique using SIBC

Abdoulaye Ba, Huu Kien Bui, Gérard Berthiau, Didier Trichet, Guillaume Wasselynck

This paper aims to present a lightened 3D finite element model (FEM) for coupled electromagnetic thermal simulation of the induction thermography non-destructive testing (NDT…

Two-way coupling of thin shell finite element magnetic models via an iterative subproblem method

Vuong Quoc Dang, Christophe Geuzaine

The purpose of this paper is to deal with the correction of the inaccuracies near edges and corners arising from thin shell models by means of an iterative finite element…

Modeling the electric field at interfaces and surfaces in high-voltage cable systems

Christoph Jörgens, Markus Clemens

In high-voltage direct current (HVDC) cable systems, space charges accumulate because of the constant applied voltage and the nonlinear electric conductivity of the insulating…

Transient performance of a magnetically geared induction machine

Badr-El-Boudour Bidouche, Thierry Lubin, Smaïl Mezani

The purpose of this paper is to investigate the transient performance of an induction machine coupled with a magnetic gear for industrial applications with low speed and high…

Transient quasi-3D magneto-thermal analytical solution in PM induction heating device

Ammar Abdi, Youcef Ouazir, Georges Barakat, Yacine Amara

This paper aims to develop a new quasi-three dimensional (3D) analytical model devoted to the study of nonlinear transient magneto-thermal coupled problems in permanent magnet…

Investigation on the shaft voltage generation of large synchronous turboalternators

Kevin Darques, Abdelmounaïm Tounzi, Yvonnick Le-menach, Karim Beddek

This paper aims to go deeper on the analysis of the shaft voltage of large turbogenerators. The main interest of this study is the investigation process developed.

Axial claw pole motor: harmonic torque estimation using finite element method

Dominique Giraud, Baptiste Ristagno, Denis Netter, Julien Fontchastagner, Nicolas Labbe, Vincent Lanfranchi

This paper aims to propose a method to evaluate the information obtained on harmonics calculations and to estimate the precision of results using finite element method for an…

Improved 3D electromagnetic analytical model for planar induction heater with consideration of transverse edge effects

Mohammed Messadi, Larbi Hadjout, Youcef Ouazir, Hakim Bensaidane, Noureddine Takorabet, Thierry Lubin, Smail Mezani

This paper aims to propose a new 3D electromagnetic model to compute translational motion eddy current in the conducting plate of a novel linear permanent magnet (PM) induction…

FEM using projection of physical properties suitable for movement modeling and optimization processes

Baptiste Ristagno, Dominique Giraud, Julien Fontchastagner, Denis Netter, Noureddine Takorabet, Geoffrey Devornique, Nicolas Labbe

Optimization processes and movement modeling usually require a high number of simulations. The purpose of this paper is to reduce global central processing unit (CPU) time by…

3-D adaptive FEA with weighted node density technique

Tadashi Yamaguchi, Yoshihiro Kawase, Shota Ishimura

This paper aims to propose a method to create 3-D finite element meshes automatically using the Delaunay tetrahedralization with the weighted node density technique. Using this…

Characterization of rotor losses in permanent magnet machines

Antomne Caunes, Noureddine Takorabet, Sisuda Chaithongsuk, Laurent Duranton

The purpose of this paper is to present a synthesis of the analysis and modeling of the rotor losses in high speed permanent magnets motors.

Irreversible demagnetization analysis of RWAFPM motor using modified MEC algorithm

Farshid Mahmouditabar, Abolfazl Vahedi, Pourya Ojaghlu, Noureddine Takorabet

This paper aims to present a modified MEC algorithm for demagnetization modeling of the PM motor. One of the major issues that the designers of the permanent magnet (PM) motors…

Diagnosis of brushless synchronous generator using numerical modeling

Mehdi Rahnama, Abolfazl Vahedi, Arta Mohammad-Alikhani, Noureddine Takorabet

On-time fault diagnosis in electrical machines is a critical issue, as it can prevent the development of fault and also reduce the repairing time and cost. In brushless…

Impact of the load angle on magnetic radial pressure and torque ripple of a low power PMSM with trapezoidal control

Emre Uygun, Michel Hecquet, Abdelmounaïm Tounzi, Daniel Depernet, Vincent Lanfranchi, Serge Bruno, Thierry Tollance

This paper deals with the study of the influence of the phase shift between currents and back-electromotive forces (back-EMF) on torque ripple and radial magnetic forces for a low…

A novel direct resolution method for coupled systems in finite element analysis

Youcef Boutora, Noureddine Takorabet

This paper aims to propose a novel direct method for indefinite algebraic linear systems. It is well adapted for sparse linear systems, such as those of two-dimensional (2-D…