Apparatus for transferring energy using onboard power electronics and method of manufacturing same

摘要

An apparatus for transferring energy using onboard power electronics comprises a first energy storage device configured to output a DC voltage and a DC bus coupled to the first energy storage device, the DC bus coupleable to a high-impedance voltage source. The apparatus also comprises a braking resistor coupled to the DC bus and to a control circuit, and a controller. The controller is configured to control the control circuit to cause energy on the DC bus to be dissipated through the braking resistor during a regenerative braking event, cause the first energy storage device to receive a charging energy from the high-impedance voltage source through the braking resistor during a charging event, and after a threshold value has been crossed, cause the first energy storage device to receive the charging energy from the high-impedance voltage source bypassing the braking resistor during the charging event.

主权项

1. An apparatus comprising:
a first energy storage device configured to output a DC voltage; a DC bus coupled to the first energy storage device, the DC bus coupleable to a high-impedance voltage source; a braking resistor coupled to the DC bus and to a control circuit; and a controller configured to:
control the control circuit to cause energy on the DC bus to be dissipated through the braking resistor during a regenerative braking event;cause the first energy storage device to receive a charging energy from the high-impedance voltage source through the braking resistor during a charging event; andafter a threshold value has been crossed, cause the first energy storage device to receive the charging energy from the high-impedance voltage source bypassing the braking resistor during the charging event.