US 11,932,408 B2
Hybrid propulsion assembly for aircraft
Jean-Philippe Hervé Salanne, Moissy-Cramayel (FR); Stéphane Petibon, Moissy-Cramayel (FR); and Florent Rougier, Moissy-Cramayel (FR)
Assigned to SAFRAN, Paris (FR)
Appl. No. 17/274,542
Filed by SAFRAN, Paris (FR)
PCT Filed Sep. 2, 2019, PCT No. PCT/FR2019/052021
§ 371(c)(1), (2) Date Mar. 9, 2021,
PCT Pub. No. WO2020/053502, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 1858172 (FR), filed on Sep. 12, 2018.
Prior Publication US 2021/0339877 A1, Nov. 4, 2021
Int. Cl. B64D 27/02 (2006.01); B60L 50/60 (2019.01); B60L 53/00 (2019.01); B60L 53/24 (2019.01); B60L 58/10 (2019.01); B64D 27/10 (2006.01); B64D 27/24 (2006.01); B64D 31/00 (2006.01)
CPC B64D 27/02 (2013.01) [B60L 50/60 (2019.02); B60L 53/00 (2019.02); B60L 53/24 (2019.02); B60L 58/10 (2019.02); B64D 27/10 (2013.01); B64D 27/24 (2013.01); B64D 31/00 (2013.01); B60L 2200/10 (2013.01); B60L 2210/10 (2013.01); B64D 2027/026 (2013.01); B64D 2221/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A series hybrid propulsion unit including a gas turbine driving a mechanical shaft of an electric generator having n output phases and supplying an alternating current busbar, and a system for monitoring the speed of the gas turbine, said alternating current busbar supplying a plurality of alternating current distribution channels each composed of an electric rectifier and a battery sharing the power required to supply a direct current bus, said direct current bus in turn supplying a plurality of propulsion sub-channels composed of electric inverters supplying, under the monitoring of a control module, motors driving thrusters, wherein said series hybrid propulsion unit further includes:
a battery charger for charging said battery from said direct current bus, wherein the battery charger is a single non-reversible direct current to direct current converter,
a power management module delivering a power reference for said electric generator,
a hybridization rate management module for managing the power sharing between said electric generator and said battery by monitoring the voltage of said direct current bus,
and in that said battery is directly connected on said direct current bus via a passive component and said electric rectifier is a passive converter.