US 11,909,005 B2
Power supply system
Ghislain Despesse, Grenoble (FR); and Sylvain Bacquet, Grenoble (FR)
Assigned to Commissariat à l'Energie Atomique et aux Energies Alternatives, Paris (FR)
Filed by Commissariat à l'Energie Atomique et aux Energies Alternatives, Paris (FR)
Filed on Nov. 19, 2021, as Appl. No. 17/455,783.
Claims priority of application No. 20 11988 (FR), filed on Nov. 23, 2020.
Prior Publication US 2022/0166073 A1, May 26, 2022
Int. Cl. H01M 10/42 (2006.01); H01M 10/48 (2006.01)
CPC H01M 10/4207 (2013.01) [H01M 10/425 (2013.01); H01M 10/482 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrical power-supply system, comprising:
a plurality of electrical batteries, each battery comprising a plurality of cells connected in series and/or parallel, and separate switches attached to each cell or to a group of the plurality of cells, the plurality of electrical batteries comprising main batteries, which are each dedicated to delivering electrical power to a corresponding piece of consuming equipment; and
processing and control circuitry configured to
select a standby battery from the plurality of electrical batteries, the selected standby battery being a battery having an output current of zero;
determine an operating configuration as a first configuration in which the selected standby battery provides assistance to one of the main batteries, or a second configuration in which the selected standby battery charges at least one main battery; and
achieve a connection configuration of the selected standby battery to the main battery depending on the determined operating configuration,
wherein, for each main battery, the processing and control circuitry is further configured to
acquire an actual state of charge of the main battery,
determine a difference between the acquired actual state of charge and a theoretical state of charge and/or a slope of variation in the acquired actual state of charge,
compare the determined difference with a first threshold difference and/or compare the slope of variation with a first threshold slope, and
when the determined difference exceeds the first threshold difference and/or when the determined slope exceeds the first threshold slope, activate a provision of assistance to the main battery using the selected standby battery while keeping the main battery connected to the corresponding piece of consuming equipment,
wherein the processing and control circuitry is further configured to
keep the actual state of charge of each main battery at the theoretical state of charge that is determined depending on a life cycle thereof;
keep the actual state of charge of each main battery above a threshold value; or
monitor a power level required by each piece of consuming equipment with respect to a threshold power level.