| CPC B64F 1/34 (2013.01) [B64D 27/16 (2013.01); B64F 1/35 (2024.01); F02C 7/26 (2013.01)] | 22 Claims |
|
19. A method for combining power on a bus to start a jet engine of an aircraft, the method comprising:
receiving a plurality of GPU outputs from a plurality of ground power units (GPUs) at a plurality of autotransformer rectifier units (ATRUs) of the aircraft;
designating a first autotransformer rectifier unit (ATRU) of the plurality of ATRUs as a master ATRU;
designating other ATRUs of the plurality of ATRUs as slave ATRUs;
operating the first ATRU in a master mode, which includes:
generating a sync signal at the master ATRU; and
synthesizing a first ATRU output at an output of the first ATRU based on the sync signal and a first GPU output from a first ground power unit (GPU) of the plurality of GPUs;
operating the other ATRUs in a slave mode, which includes:
receiving the sync signal from the master ATRU; and
synthesizing other ATRU outputs at outputs of the slave ATRUs based on the sync signal and other GPU outputs from other GPUs of the plurality of GPUs;
coupling the first ATRU output and the other ATRU outputs in parallel to the bus to generate a combined power on the bus; and
starting the jet engine of the aircraft using the combined power on the bus.
|