| 摘要 |
<p>An aircraft electrical network (50). The network (50) comprises a first starter generator (52) mechanically coupled to a first shaft (40) of an aircraft main engine (22). The first starter generator (52) is configured to turn the first shaft (40) of the main engine (22) when operated in a starting mode, and to generate electricity from the first shaft (40) of the gas turbine engine (22) when operated in a generating mode. The network (50) further comprises a DC electrical bus (62) electrical coupled to one or more electrical loads (68) and an AC electrical bus (61) electrically coupled to the first starter generator (52). The DC electrical bus (62 ) is electrically coupled to the AC electrical bus (61) via a bi-directional AC / DC converter (70). The bi-directional AC / DC converter (70) is configured to provide AC electrical power from the DC electrical bus (62) to power the first starter generator (52) when the first starter generator (52) is in a starting mode, and DC electrical power to the DC electrical bus (62) when the first starter generator (52) is in a generating mode.</p> |
