COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 24 Issue 3

Experimental design method applied to a multiphysical model: “Trellis” designs for a multidimensional screening study

S. Vivier, M. Hecquet, A. Ait‐Hammouda, P. Brochet

The aim of this paper is to use an analytical multi‐physical model – electromagnetic, mechanic and acoustic – in order to predict the electromagnetic noise of a permanent magnet…

Regularization of inverse magnetostatic problems: possibilities and pitfalls

A. Formisano

Inverse problems are usually ill‐conditioned, requiring the adoption of regularization techniques to obtain reliable results. The choice of the regularization method and of the…

CoreLab: a component‐based integrated sizing environment

Vincent Fischer, Laurent Gerbaud

This paper presents CoreLab, a sizing environment for electrical devices, based on a new software component standard, ICAR, which offers the possibility of multifaceted…

Genetic optimisation of radial eddy current couplings

A. Canova, F. Freschi, G. Gruosso, B. Vusini

The purpose of this paper is to obtain a fully analytical model of an eddy current coupler and to use it in a multi‐objective optimisation algorithm.

Hybrid method coupling AIS and zeroth order deterministic search

A. Canova, F. Freschi, M. Repetto

The paper presents an hybrid optimization technique which couples the artificial immune system (AIS) algorithm with a zeroth order deterministic method.

Identifying material properties of a dielectric motor

P. Di Barba, E.R. Mognaschi, M.E. Mognaschi, A. Savini

The purpose of the paper is to define a methodology for identifying the electric conductivity and permittivity of lossy dielectric materials employed in a class of small…

System optimization by multiobjective genetic algorithms and analysis of the coupling between variables, constraints and objectives

J. Régnier, B. Sareni, X. Roboam

This paper presents a methodology based on Multiobjective Genetic Algorithms (MOGAs) for the design of electrical engineering systems. MOGAs allow one to optimize multiple…

LORETA‐contracting algorithm for solving EEG source distribution problems

Xinshan Ma, Xin Guan

The electroencephalography (EEG) source tomography in bio‐electromagnetics is to estimate current dipole sources inside the brain from the measured electric potential distribution…

Analytical model for the optimal design of a brushless DC wheel motor

S. Brisset, P. Brochet

Analytical models are often used in the first steps of the design process. They are associated with optimisation methods to find a solution that fulfil the design specifications…

An improved technique for interface shape identification in magnetic fluid dynamics

Hartmut Brauer, Marek Ziolkowski, Milko Kuilekov

The interface between two conducting fluids in a magnetic fluid dynamics (MFD) problem was identified by means of external magnetic field measurements. Genetic algorithms (GA…

A circuital formulation for direct electrical resistive tomography problems

F. Ferraioli, A. Formisano, R. Martone

Electrical resistive tomography (ERT) is a non‐destructive testing technique based upon the reconstruction of the electrical conductivity profile inside a body from measurement…

Three component magnetic field data: Impact on minimum norm solutions in a biomedical application

Luca Di Rienzo, Jens Haueisen, Cesare Mario Arturi

To demonstrate the improvement of three‐axial magnetic sensors systems for magnetocardiography when using minimum norm solutions (MNS).

Shape and material optimization using gradient methods and the adjoint problem in time and frequency domain

Tomas Halleröd, David Ericsson, Anders Bondeson

Shape and material parameters have major influence on the performance of electromagnetic components. Optimization of these parameters is therefore vital in electromagnetic design…

Description of power lines by equivalent source system

A. Canova, F. Freschi, M. Repetto, M. Tartaglia

The definition of a simple model of low frequency magnetic field created by power industrial installations can be approached by using an equivalent source system (ESS). Given a…

A fast algorithm for inversion of MLP networks in design problems

Davide Cherubini, Alessandra Fanni, Augusto Montisci, Pietro Testoni

To present a neural network‐based approach to the design of electromagnetic devices.

Recent experiences of multiobjective optimisation in electromagnetics: A comparison of methods

P. Di Barba, M.E. Mognaschi

The aim of this paper is to compare different methods for multiobjective optimisation with respect to the same benchmark problem.

A multi‐objective analysis of a special switched reluctance motor

Luiz Lebensztajn, Carina A.R. Marretto, Fábio A.B. Perdiz, Maurício C. Costa, Silvio I. Nabeta, Álvaro B. Dietrich, Ivan E. Chabu, Thiago T.G.R. Cavalcanti, José Roberto Cardoso

The design of electrical machines includes the computation of several requirements and, in general, the improvement of one requirement implies in a degradation of another one…

Study of the inverse problem resolution quality: application to low‐field magnetostatic

Sébastien Guerin, Jean‐Louis Coulomb, Gilles Cauffet

This paper presents a method to improve inverse problem resolution. This method focuses on the measurement set and particularly on sensor position. Based on experiment, it aims at…

Optimisation in electromagnetics with the space‐mapping technique

D. Echeverría, D. Lahaye, L. Encica, P.W. Hemker

Optimisation in electromagnetics, based on finite element models, is often very time‐consuming. In this paper, we present the space‐mapping (SM) technique which aims at speeding…

Optimal design of electric vehicles drive train

V. Mester, F. Gillon, P. Brochet

The paper highlights the process of electric vehicles optimal design as an inverse problem and presents the global constrained optimization as the best way to solve it.

Some geometrical and evolutionary procedures for optimizing the calculation times of 3D current fields by the finite element method

G. Delvecchio, E. Di Sciascio, S. Grassi, F. Neri, M. Sylos Labini

As well known, in the finite element method, the calculation and the location of the elements of the matrix C of the coefficients requires a lot of calculation times and memory…

Co‐sizing of an electromechanical device by using optimisation process

I. Ammar, L. Gerbaud, Ph. R. Marin, F. Wurtz

This paper deals with the collaborative design of electromagnetic devices over the internet network. The design is made by both mechanical and electrical engineers. So, the paper…

Magnetic force computation with hysteresis

Zs. Szabó, J. Füzi, A. Iványi

The purpose of this paper is to present a procedure, which determines the magnetic force acting between a soft magnetic cylinder and a coil taking the hysteresis phenomena into…

Tracking space‐vector plot asymmetries in transformer differential relaying

Guzmán Díaz, Pablo Arboleya, Javier Gómez‐Aleixandre

Differential relaying is one of the most widely used techniques for protecting power transformers. The purpose of this paper is to discuss and cover a developed methodology for…

Lossy three‐phase transmission line transient analysis by Park approach

Sonia Leva, Adriano Paolo Morando

To provide a unified analytical tool, based on Park transformation, for the theoretical and practical analysis of a lossy three‐phase transmission line.

Scalar and vector potentials' coupling on nonmatching grids for the simulation of an electromagnetic brake

Bernd Flemisch, Barbara Wohlmuth, Francesca Rapetti, Yvon Maday

We present a method for the simulation of the dynamical behavior of a coupled magneto‐mechanical system given in terms of a conductor moving through an electromagnetic field.