Patent ID: 11876389
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. An electric system comprising a first control circuit and a plurality of modules arranged in series between first and second terminals, each module in the plurality of modules having third and fourth terminals, at least one of the third and fourth terminals of each module in the plurality of modules being coupled to one of the third and fourth terminals of another module in the plurality of modules, each module in the plurality of modules comprising electric cells and switches coupling the electric cells to one another and to the third and fourth terminals of one module in the plurality of modules and one of a second control circuits, the electric system further having at least a first data transmission bus coupling the first control circuit to each of the second control circuits, the electric system having a memory, the first control circuit being configured to determine a first priority table associated with a charge operation of the electric system and a second priority table associated with a discharge operation of the electric system, the second priority table being different from the first priority table, the first priority table comprising a first classification of priority levels of the electric cells for the charge operation according to a first criteria and a second classification of priority levels of the electric cells for the discharge operation according to a second criteria, the first criteria and the second criteria being each chosen among a group comprising electric cell temperature, state of charge of the electric cell, and voltage across the electric cell, wherein a first order of the cell priority levels, from a highest priority to a lowest priority, of the first priority table not being an inverse of a second order of the priority levels of the cells, from a highest priority to a lowest priority, of the second priority table, the first control circuit being configured to receive a set point and the first control circuit or each of the second control circuits being configured to determine first control signals for connecting or disconnecting at least one of the electric cells of the plurality of modules to follow said set point according to the first classification during the charge operation and according to the second classification during the discharge operation, and
comprising a second data transmission bus coupling the first control circuit to each of the second control circuits, wherein the first control circuit is configured to transmit first data to the second control circuits over the first data transmission bus at a first rate and is configured to transmit second data to the second control circuits over the second data transmission bus at a second rate smaller than the first rate.