초록

A power conversion system allows for redundant starting and generating functions and eliminates equipment normally found in a conventional system so that size and weight are reduced.

대표청구항 ▼

[ I claim:] [10.] A power conversion system for an aircraft having first and second generators coupled to first and second aircraft engines, respectively, and a third generator coupled to an auxiliary power unit (APU) wherein the aircraft further includes a first load bus coupled to an electrically

[ I claim:] [10.] A power conversion system for an aircraft having first and second generators coupled to first and second aircraft engines, respectively, and a third generator coupled to an auxiliary power unit (APU) wherein the aircraft further includes a first load bus coupled to an electrically driven hydraulic pump and a second, variable frequency bus, comprising:a first switch matrix coupled to the generators;first through third power converter units coupled to the first switch matrix;a second switch matrix coupled between the first through third power converter units and the load buses;a DC power source coupled to the power converter units;a supervisory control operable in a starting mode to cause any one of the power converter units to provide conditioned power obtained from the DC power source to the third generator to cause the third generator to operate as a motor and start the APU and subsequently operable to cause any one of the power converter units to provide power developed by the third generator to one of the first and second generators to cause such generator to operate as a motor and thereby start the aircraft engine coupled thereto and further operable in a generating mode to provide power developed by the generators to the load buses.