Synchronous motors for traction applications

Nowadays, the electrical traction system is gaining more and more attentions since it is regarded as the most promising solution to ease energy crisis, air pollution and global warming. As one of the key devices, the electrical motors determine the main performance of the transport system. In this paper, a synthesis of synchronous motors for traction applications is presented. Since PM motors have been widely investigated in literatures, particular emphasis is placed on the synchronous reluctance (REL) motor and permanent magnet assisted synchronous reluctance (PMAREL) motor. Advantages and drawbacks are weighted by means of simulations and experimental tests on some prototypes, and the potential applications are highlighted. At last, a comparison between the PM motor solutions with the magnetless solution-REL motors is presented.