This paper presents some aspects related to the performances of a high-speed induction motor used for the propulsion of an electric vehicle. For the construction of the rotor cage of a 20 kW machine operating at a rated speed of 26000 rpm, both aluminium and copper were used. A comparison among these structures both from the electromagnetic and mechanical point of view, based on an analytical, but mainly numerical analysis, was performed. The differences among these structures, underlining the advantages and shortcomings of the use of the two conductor materials, are discussed in detail in the paper. The performed numerical analysis validates the analytical choices from the electromagnetic point of view and shows the major differences between the two variants from the mechanical point of view.
High Speed Induction Motor Used in Electric Vehicles
AUTHORS: Dan-Cristian POPA, Bogdan VĂRĂTICEANU, Daniel FODOREAN, Paul MINCIUNESCU, Claudia MARTIS