Création d’un outil de dimensionnement par optimisation multiphysique et multiobjectif de machines synchro-reluctantes à aimants permanents pour véhicules électriques et hybrides.

In the work presented in this manuscript, we are interested in the implementation of a multi-physical sizing methodology by optimization of multilayer permanent magnet synchro-reluctant machines. This work aims first to identify the electrical machine technologies that can meet the needs of the automotive industry and then to set up a generic machine optimization methodology independent of the chosen machine technology. We started to review in chapter 1 the different electric machine technologies that can meet the needs of the automotive industry. From this study, we have seen that the current trend is towards the use of permanent magnet synchro-reluctant machines. In chapter 2, we presented the sizing methodology, as well as the fast and accurate multi-physics models we had set up during the thesis. Then, we used the machine dimensioning tool set up to perform sensitivity studies in chapter 3, looking in particular at the influence of the number of pole pairs, the ferromagnetic material characteristic, the number of magnet layers, etc. on the dimensioning of the synchro-reluctant machine. Finally, in the last chapter of the thesis, we dimensioned a 3kW machine prototype in order to validate the optimization approach and the physical models used during the dimensioning of the synchro-reluctant machine.