US 12,476,470 B2
Power distribution assembly
Arber Haxhiu, Helsinki (FI); and Mikko Kajava, Helsinki (FI)
Assigned to ABB Schweiz AG, Baden (CH)
Filed by ABB Schweiz AG, Baden (CH)
Filed on Dec. 18, 2023, as Appl. No. 18/543,810.
Claims priority of application No. 22214929 (EP), filed on Dec. 20, 2022.
Prior Publication US 2024/0204534 A1, Jun. 20, 2024
Int. Cl. H02J 3/46 (2006.01); H02P 5/74 (2006.01)
CPC H02J 3/46 (2013.01) [H02P 5/74 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A power distribution assembly comprising:
a DC power source system comprising a plurality of DC power sources, wherein the plurality of DC power sources includes a first DC power source and a second DC power source, wherein each of the first DC power source and the second DC power source includes at least one fuel cell;
a DC bus bar system comprising a plurality of DC bus bars, wherein the plurality of DC bus bars includes a first DC bus bar electrically connected to the first DC power source, and a second DC bus bar electrically connected to the second DC power source, wherein the first DC bus bar and the second DC bus bar are galvanically isolated from each other; and
a supply converter system comprising a plurality of supply converters, wherein each of the plurality of supply converters is a DC to AC converter, and wherein the plurality of supply converters includes a first supply converter electrically connected to the first DC bus bar, and a second supply converter electrically connected to the second DC bus bar,
wherein the power distribution assembly comprises at least one multi-winding machine unit having a machine shaft, a stator winding system and a rotor winding system such that the stator winding system includes a first stator winding and a second stator winding, the rotor winding system is stationarily connected relative to the machine shaft, and the stator winding system is adapted to interact magnetically with the rotor winding system,
wherein the first stator winding is electrically connected to the first supply converter, and the second stator winding is electrically connected to the second supply converter, and
wherein the power distribution assembly has a special operating state in which the supply converter system is adapted to supply power between the first DC bus bar and the second DC bus bar through the at least one multi-winding machine unit.