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A holistic approach to determine the optimum number of phases m of an m-phase motor in combination with an m-leg inverter for electric vehicle applications is presented. The optimum offers a significant improvement of the torque and power by approximately 9.6% over the whole operating range in comparison to a 3-phase motor and therefore enhances the power and torque density without expanding the design...
In this paper, three different system topologies for a high performance electric vehicle drive are compared to each other. Next to the classical three phase permanent magnet synchronous machine in different connection schemes, also one topology containing a six phase machine has been included into the study. Suitable inverter topologies are discussed as well as the design of the multiphase winding...
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