Advanced vehicles with dynamically reconfigurable number of stator turns

This paper presents technical justification for implementing the capability to change automatically the effective number of turns in the stator of propulsion motors while they run, adapting to changes in speed and load of the vehicle. Our simulation studies show significant potential benefits on efficiency and battery size in a typical electrically propelled vehicle when the stator of its IPM motor is modified to be able to switch between its standard and twice the number of turns, as it operates.