US 12,168,520 B2
System and method for balancing at least one parameter to be balanced of an electric motor of a propulsion system
David Lemay, Moissy-Cramayel (FR); and Jean-Philippe Jacques Marin, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/778,148
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Dec. 9, 2020, PCT No. PCT/FR2020/052361
§ 371(c)(1), (2) Date May 19, 2022,
PCT Pub. No. WO2021/116606, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1913963 (FR), filed on Dec. 9, 2019.
Prior Publication US 2022/0411091 A1, Dec. 29, 2022
Int. Cl. H02P 1/16 (2006.01); B64D 31/12 (2006.01); B64D 31/16 (2024.01); H02P 5/50 (2016.01); H02P 5/74 (2006.01)
CPC B64D 31/12 (2013.01) [B64D 31/16 (2024.01); H02P 5/50 (2013.01); H02P 5/74 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A balancing system for balancing an electric motor of a propulsion system with at least one parameter, the propulsion system comprising at least two electric motors and a propulsion member driven in rotation by said electric motors, the balancing system comprising a balancing module associated with each electric motor, each of the balancing modules being configured to calculate a correction of a speed setpoint of the associated electric motor as a function of a correction factor of the speed setpoint dependent on said at least one parameter of the associated electric motor that is intended to be balanced and a speed setpoint of the propulsion member, wherein the correction factor of the speed setpoint is a decreasing monotonic affine function dependent on a balancing gain and a predetermined maximum speed setpoint correction value.