Design of permanent magnet synchronous machine in order to reduce noise under multi-physic contraints

This paper describes the modeling of a permanent magnet synchronous machine by lumped models. Several fields of physics, such as electromagnetics, thermics, mechanics and acoustics are necessary for designing electrical machines. The aim of this study is to build a design model of a permanent magnet synchronous machine for traction applications which takes into account all these different physical aspects. Magnetic, electrical, electronic and thermal parts are represented by lumped models, whereas vibro-acoustic and mechanical parts are represented by analytical models. Simulation results are presented and compared with the finite element method and experiments. These fast and entirely parameterized, lumped models make it possible to couple the software with optimization tools. Some optimization results are discussed here.