Patent ID: 8115430

Claim:
A system for controlling two alternating current (AC) machines, the system comprising: a five-phase PWM inverter module coupled to the two AC machines and being designed to generate sinusoidal voltages for the two AC machines; a DC input voltage source that provides a DC input voltage; a boost converter, coupled to the five-phase PWM inverter module and the DC input voltage source, and being designed to supply a new DC input voltage to the five-phase PWM inverter module having a value that is greater than or equal to a value of the DC input voltage; and a voltage boost command control module designed to generate a boost command signal that controls the boost converter such that the boost converter generates the new DC input voltage in response to the boost command signal, wherein the boost command signal drives the new DC input voltage generated by the boost converter to a value greater than the DC input voltage when the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines.