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

Claim 13:
14. 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 multi-input DC input stage coupled to a multi-output DC output stage;
the multi-input DC input stage including multiple distributed DC inputs, each distributed DC input coupled to a respective one of the plurality of batteries; and
the multi-output DC output stage including multiple aggregated 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 comprises an AC link section having a plurality of distributed AC input windings and a corresponding plurality of distributed AC output windings, each distributed AC input winding coupled to a respective distributed DC input and to a respective distributed AC output winding, wherein each aggregated DC output comprises multiple distributed DC outputs, each distributed DC output coupled to a respective distributed AC output winding, wherein the multiple distributed DC outputs are aggregated in series.