公开(公告)号：WO2022212895A2

公开(公告)日：2022-10-06

申请号：PCT/US2022/023134

申请日：2022-04-01

Applicant: ULTRACELL LLC

Inventor： KAYE, Ian W. ,  CHEN, Ru ,  BARCINAS, Franklin Paul ,  MURPHY, John Ryan ,  ABENA, Jonathan ,  WILSON, Alan D.

IPC: H02J1/12 ,  H01M8/249 ,  H02J7/00 ,  H01M8/04007 ,  H01M8/04537 ,  H01M8/0432 ,  H01M8/04029 ,  H01M8/04067 ,  H01M8/04559 ,  H01M8/04701 ,  H01M8/0494 ,  H01M8/04955 ,  H02J1/00 ,  H02J2300/30 ,  H02J7/00032

Abstract: A fuel cell power system that includes multiple strings that each have multiple sub-stacks of fuel cells. Each sub-stack is electrically isolated from other sub-stacks and each sub-stack can be independently controlled by a DC control module on a printed circuit board. The DC control module of a sub-stack can regulate or shut off the output power of the sub-stack if the sub-stack becomes weak or fails. A sub-stack can be shut off while other sub-stacks in the system continue to operate. The output power of other sub-stacks can be increased to compensate for sub-stacks that are shut down.