Are Wound-Rotor Synchronous Motors Suitable for Use in High Efficiency Torque-Dense Automotive Drives?

Publisher:
IEEE
Publication Type:
Conference Proceeding
Citation:
IEEE Industrial Electronics Society Annual Meeting (IECON), 2012, pp. 4862 - 4867
Issue Date:
2012-01
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This paper discusses the possibility of using woundrotor synchronous motors in automotive drive applications. Currently the brushless rare-earth magnet machine is the main choice of drive motor because it has high efficiency and it is very torque-dense, although some vehicles using induction motors. Issues with rare-earth material supply means manufacturers are looking at alternatives. This paper reviews the requirements for a wound-rotor synchronous machine using a current automotive drive application and carries out some load simulations using 2D finite element analysis. Direct comparison is made to a brushless permanent-magnet machine and first-pass designs are presented. It is found that there are possibilities for this machine in this application; possibilities that current practice largely ignores.
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