Research Article Open Access
Volume 7 • Issue 3 • 1000262 J Electr Electron Syst, an open access journal
ISSN: 2332-0796
Open Access Research Article
Journal of
Electrical & Electronic Systems
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ISSN: 2332-0796
Benessalah et al., J Electr Electron Syst 2018, 7:3
DOI: 10.4172/2332-0796.1000262
*Corresponding author: Djamel Benessalah, Department of Electrical
Engineering and Informatics, Research Laboratory in Electrical Engineering and
Automation, Yahia Fares University, Medea, Algeria, Tel: 213775032160; E-mail:
benessalahdjamel@gmail.com
Received May 16, 2018; Accepted June 20, 2018; Published June 27, 2018
Citation: Benessalah D, Houassine H, Kabache N, Moussaoui D (2018) Improving
the Performance of a Synchronous Reluctance Machine through the use of
Composite Magnetic Materials. J Electr Electron Syst 7: 262. doi: 10.4172/2332-
0796.1000262
Copyright: © 2018 Benessalah D, et al. This is an open-access article distributed
under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the
original author and source are credited.
Improving the Performance of a Synchronous Reluctance Machine
through the use of Composite Magnetic Materials
Djamel Benessalah
1
*, Hamza Houassine
1
, Nadir Kabache
1
and Djelloul Moussaoui
2
1
Department of Electrical Engineering and Informatics, Research Laboratory in Electrical Engineering and Automation, Yahia Fares University, Medea, Algeria
2
Research and Teaching Unit in Electrical Engineering, Polytechnic Military School, Bordj El-bahri, Algiers, Algeria
Keywords: Synchronous reluctance machine; Sof magnetic composite
material; Response surface method; Electromagnetic performances
Introduction
Most of the electromagnetic devices such as transformers,
electromagnets, alternators and electrical motors use a magnetic circuit
which pipes the fux in order to maximize induction.
Te efciency of electromagnetic devices is strongly afected by
losses due to the sof-magnetic material being used. Diferent structured
materials are available. Choosing the most appropriate material for
a medium frequency application is not intuitive. Electromagnetic
circuits of power transformers or electric motors are usually made
of conventional silicon-iron sheets. Higher power densities can be
achieved by an increased operational frequency, but the loss density
increases with higher frequency as well [1].
At constant magnetic feld, losses are low or non-existent. However
at variable magnetic feld, an induced current appears which causes the
heating of the material. As a result, important losses appear, degrading
the efciency of the device and decreasing his performances. One can
ask the question “how can we reduce magnetic losses and improve
the performance of the electromagnetic devices when working with a
variable magnetic feld?”
Sof magnetic composite material, frequently designed with their
acronym SMC, appear as a promising alternative to the lamination
solution. Te possibility ofered by using moulding by compression
and direct tooling on the compressed blocs opens a very wide feld
for the design of electrical machines with optimization of the used
magnetic circuit shape.
In present paper, we highlight the potential ofered by this new
material in the design of electrical machines. We focus on machines
that are used in high-speed applications such as the synchronous
reluctance machine (SynRM). Te paper is subdivided into three parts.
• Sof magnetic composite material
• Synchronous reluctance machine
• Application and validation
Sof Magnetic Composite Materials (SMC)
Sof magnetic composite materials are relatively new. Tey arise
from the latest developments in powder metallurgy. Tese materials
Abstract
In the present paper, we investigate the improvement of the synchronous reluctance machine performance using a
new soft magnetic composite material. This work highlights potential technology applications of the new soft composite
magnetic materials in the design of electrical machines. A numerical simulation carried out on the SynRM has shown that
the electromagnetic performances such as torque and magnetic losses are better for SMC materials than for laminate
materials for a supply frequency beyond f=500 Hz. Subsequently, an optimization of the machine has been performed
using the so-called response surface method (SRM) by acting on the most infuential geometric parameters of the
machine. As a last step, an experimental study is carried out on SynRM in order to validate the fnite element results.
are obtained by mixing particles of iron powder «20 μm to 200 μm»
with high purity and coated with a fne electrical insulator as shown
in Figure 1 [2]. Tis choice results in the very good magnetic features.
Sof magnetic composites (SMCs) have been widely used in
electromagnetic devices with alternating magnetic felds such as
transformers, electric motors, electromagnets, and alternators. Tis
is due to the fact that ferromagnetic metal powders exhibit excellent
mechanical ductility, magnetic isotropy, high magnetic saturation, and
low hysteresis loss [3].
Afer the elaboration of the iron powder, the manufacturing
of the SMC goes through three phases, which are the mixing phase,
Figure 1: Iron particles coated with a fne electrical insulator.