Patent ID: 11865945
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 15:
16. A rechargeable energy storage system, comprising:
a series arrangement of a plurality of batteries coupled to a first DC bus at a first DC voltage;
a DC to DC converter comprising:
a plurality of distributed converters, each distributed converter having a respective distributed DC input and a respective distributed DC output, each distributed DC input coupled to a respective one of the plurality of batteries;
multiple aggregated DC outputs, each aggregated DC output comprising a respective aggregated set of distributed DC outputs; and

at least one controllable switch for coupling one or more of the multiple aggregated DC outputs to one or more other DC buses;
wherein the DC to DC converter further comprises a respective AC link section intermediate each respective distributed DC input and each respective distributed DC output; and
wherein the distributed DC outputs of each aggregated set of distributed DC outputs are aggregated in series.