用于中/高压大功率固态变压器的辅助电源

This article proposes a new auxiliary power supply (APS), which is used to feed the controllers, drivers, and sensors of the submodules for medium-/high-voltage and high-power solid-state transformer. In medium-/high-voltage and high-power applications, the APS is usually connected to the dc bus of the submodule to obtain electric energy. The voltage of the submodule's dc bus is often as high as s...