Patent ID: 7154237
Filing Date: 2006-12-26
Classification: B60L,H02P,Y02T

Abstract:
1. A method of providing a unified power control of a motor, said method comprising: providing a first inverter system, a second inverter system, and a first motor coupled there between, said first motor having a set of windings wherein each winding of said set includes a first end and a second end; coupling said first inverter system to a first energy source; coupling said first ends of said windings to said first inverter system; coupling said second inverter system to a secondary energy source; coupling said second ends of said windings to said second inverter system; generating a first pulse width modulated signal; generating a second pulse width modulated signal; wherein total power delivered to said first motor is a sum of a first inverter power and a second inverter power; and driving said first inverter system and said second inverter system with said first pulse width modulated signal and said second pulse width modulated signal to independently control a fundamental component of an output voltage of said first inverter system and said second inverter system to achieve a desired varying power split between said first energy source and said second energy source to control the motor.