Patent ID: 9287818
Filing Date: 2016-03-15
CPC Classification: H02K,H02P

Claim Text:
1. A motor drive system comprising: a six phase alternating current induction motor having a plurality of poles (P) and a stator with a core having a plurality of teeth (T) with the number of teeth divided by 6 times the number of poles (T/(6×P)) equaling an integer number, the core having first and second groups of three-phase stator windings wound thereon in a short pitch winding pattern, the first group of three-phase windings separated spatially by 30 electrical degrees from the second group of three-phase windings; a first power supply connected to the first group of three-phase windings; a second power supply connected to the second group of three-phase windings; wherein the second power supply provides power to the second group of three-phase windings that is shifted by 30 electrical degrees in time with respect to the power provided by the first power supply; wherein the first and second power supplies receive signals from respective identical pulse width modulator generators; and wherein the respective first and second pulse width modulator generators receive angle and voltage commands from one controller.