US 11,873,109 B2
Electrical power system
David R. Trainer, Derby (GB); Francisco Javier Chivite Zabalza, Stafford (GB); Mark Sweet, Chesterfield (GB); Luke George, Derby (GB); and Gian Incerpi, Derby (GB)
Assigned to Rolls-Royce plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Nov. 7, 2022, as Appl. No. 18/053,015.
Claims priority of application No. 2116919 (GB), filed on Nov. 24, 2021.
Prior Publication US 2023/0159177 A1, May 25, 2023
Int. Cl. B64D 27/24 (2006.01); H02J 1/10 (2006.01); H02J 7/34 (2006.01); H02M 3/28 (2006.01)
CPC B64D 27/24 (2013.01) [H02J 1/106 (2020.01); H02J 7/34 (2013.01); H02M 3/28 (2013.01); B64D 2221/00 (2013.01); H02J 2310/44 (2020.01)] 18 Claims
OG exemplary drawing
 
1. An electrical power system comprising:
a DC power bus having first and second DC power bus terminals;
an electrical storage unit having first and second terminals, the second terminal connected to the second DC power bus terminal;
a DC:DC converter having first and second DC:AC converters and a transformer connected between the first and second DC:AC converters, the first DC:AC converter connected between and to the first terminal of the electrical storage unit and the first DC power bus terminal; and
a controller connected to control a switching operation of one or both of the first and second DC:AC converters.