Power converters

摘要

A power converter includes a first set of transistors electrically connected in series, a second set of transistors electrically connected in series, and an AC link. The second set of transistors is electrically connected in parallel with the first set of transistors to form an H-bridge. The AC link is electrically connected between the first and second sets of transistors. A plurality of H-bridges are connected in parallel and a three-wire DC bus is electrically connected to the H-bridges.

主权项

1. A power converter comprising:
a first set of transistors electrically connected in series; a second set of transistors electrically connected in series, wherein the second set of transistors is electrically connected in parallel with the first set of transistors to form an H-bridge; a three-wire DC bus electrically connected in parallel to the H-bridge; a bi-directional AC link electrically connected between the first and second sets of transistors; and a DC bus electrically connected to a battery and a DC bus of a second power converter, the second power converter being electrically connected to a generator, wherein the first and second sets of transistors each form respective 3-level phase legs and the first and second sets of transistors are operated to output a five-level phase voltage waveform from the AC link, and wherein at least one terminal of the AC link electrically connects the H-bridge to an isolated AC machine phase winding.