Power factor correction with variable bus voltage

摘要

A controller includes a voltage determination module, a bus voltage command module, and a power factor correction (PFC) control module. The voltage determination module determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a PFC module and an inverter power module that drives a motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the motor and speed of the motor. The bus voltage command module determines a commanded bus voltage based on the desired DC bus voltage. The PFC control module controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.

主权项

1. A controller comprising:
a voltage determination module that determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a power factor correction (PFC) module and an inverter power module that drives a motor, wherein the voltage determination module determines the desired DC bus voltage based on at least one of a torque of the motor and a speed of the motor; a bus voltage command module that determines a commanded bus voltage based on the desired DC bus voltage; and a PFC control module that controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.