Power conversion with solid-state transformer

摘要

An electric power supply unit includes a primary stage having an electric converter arranged to increase a frequency of AC power provided to an input of the power supply unit; a transformer stage connected to receive AC power from the primary stage and to reduce a voltage level of the AC power; and a secondary stage connected to receive the AC power at the reduced voltage level and the increased frequency and having a rectifier and power factor correction circuit arranged to convert the AC power to DC power and to provide power factor correction for power entering the power supply unit.

主权项

1. An electric power supply unit, comprising:
a primary stage having an electric converter arranged to receive an AC power input and increase a frequency of the AC power input provided to an input of the power supply unit, wherein the primary stage is arranged to maintain the AC power input as an alternating current through the primary stage, wherein the primary stage is arranged to increase the frequency of the AC power input by a multiple of at least two; a transformer stage connected to receive AC power from the primary stage and to reduce a voltage level of the AC power; and a secondary stage connected to receive the AC power at the reduced voltage level and the increased frequency and having a rectifier and power factor correction circuit arranged to convert the AC power to DC power and to provide power factor correction for power entering the power supply unit.