| |
Les membres du Jury :
Guy FRIEDRICH, Professeur, Université de Technologie de Compiègne (Président)
Xavier MININGER, Professeur, Université Paris Sud (Rapporteur)
Abdelmounaïm TOUNZI, Professeur, Université de Lille (Rapporteur)
Daniel DEPERNET, Maître de Conférence, Université de Technologie de Belfort-Montbeliard (Examinateur)
Caroline DOC, Renault (Examinateur)
Vincent LANFRANCHI, Professeur, Université de Technologie de Compiègne (Directeur de thèse)
Alejandro OSPINA, Maître de Conférence, Université de Technologie de Compiègne (Co-Directeur)
Abstract :
Due
to environmental concern related to CO2 emissions, automobile
manufacturers has been increasingly engaging in electrifying
multiples on-board applications. Functions that are being electri ed
involve crucial and complex applications such as clutches, power
steering, assisted brakes and others. Furthermore, these functions are
often placed in a particularly challenging environment in terms of
spaces, thermal, vibration and acoustic. As results, research on
electrical motors to nd the most suitable motor to a given
applications has
been intensi ed.
In this environment,
machines optimal design requires simultaneous consideration of numerous
physical phenomena ; both in terms of expected performance and
constraints to be respected. The physics that can be aected includes
the electromagnetic / electromechanical performance, thermal behavior
and vibro-acoustic behavior. Among a large choice of machine, with the
manufacturer cost and manufacturing concern taken into account, the
synchronous reluctance machine with segmented rotor has been found to
be particularly interesting for application with severe ambient
temperature and encumbrance limitation.
This study has therefore
as objectives to evaluate the capacity of the synchronous reluctance
machine in all physics mentioned and eventually shows the interaction
between these physics, thus performance alteration of the machine
operated in automobile equipment environment. Multi-physics model were
developed and confronted to experimental validations using a prototype
machine that was designed for an electrical clutch. Using the validated
model, dierent performance gures of synchronous reluctance machines with dierent rotor topologies were compared.
Resulting
from the study, valid electromagnetic, electromechanical, thermal and
vibroacoustic models are now available to be used as tools in future
machine design. The synchronous reluctance with segmented rotor
prototype machine has been shown to be capable to be used in the
electrical clutch application studied in particular. Following
performance evaluations in dierent physics, suggestions of
improvements have also been proposed.
|
