Abstract
In this paper, optimal design of stator winding conductors of interior permanent magnet synchronous motor for EV traction to extend the driving distance is introduced. Since AC copper loss is affected by the position and size of conductors, proper winding position needs to be analyzed. Decreasing the area of the coil can decrease AC copper loss. However, this leads to higher DC copper loss because higher current density is needed to maintain output power. Therefore, optimal design that decrease the summation of AC and DC copper loss and increase the efficiency is necessary to enlarge the driving distance of EV. The operating point is chosen by maximum energy consumption region and stator winding design is optimized by analyzing DC and AC copper losses in stator winding.
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