Study of a high-speed motorization for electric vehicle based on PMSM, IM and VRSM

The paper presents the study of a high speed motorization dedicated for electric vehicle (EV). Three types of electrical machines are analyzed: permanent magnet synchronous machine (PMSM), induction machine (IM) and variable synchronous reluctance machine (VRSM). They are studied from the electromagnetic point of view, with closer look on the power density, energetic performances and torque wave (this last parameter being critical while controlling the transients on the EV´s motorization). Mechanical aspects will be also treated, since they are influencing the losses and since the presence of centrifugal forces could irreversibly affect the structure of the motors. The best suited variant is constructed and preliminary information on the prototype is given.