US 12,113,396 B1
Fuel cell powered ring bus architectures
Li Qi, Raleigh, NC (US); Harish Suryanarayana, Apex, NC (US); Silvio Colombi, Losone (CH); Taosha Jiang, Beijing (CN); Yuzhi Zhang, Apex, NC (US); and Harry Bye Handlin, Birmingham, AL (US)
Assigned to ABB Schweiz AG, Baden (CH)
Filed by ABB Schweiz AG, Baden (CH)
Filed on Mar. 13, 2023, as Appl. No. 18/182,908.
Int. Cl. H02J 9/06 (2006.01); H02J 1/10 (2006.01)
CPC H02J 9/062 (2013.01) [H02J 1/10 (2013.01); H02J 9/061 (2013.01); H01M 2250/10 (2013.01); H02J 2300/30 (2020.01); Y02B 90/10 (2013.01); Y02B 90/20 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A fuel cell power system comprising:
a direct current (DC) ring bus;
a plurality of DC fuel cell modules, each including one or more fuel cells coupled to a hydrogen storage; and
a plurality of bidirectional DC uninterruptable power supplies (DC-UPSs), each electrically coupled to at least one battery, a corresponding one of the plurality of DC fuel cell modules, and, via the DC ring bus, a load.