公开(公告)号：US20210044119A1

公开(公告)日：2021-02-11

申请号：US16987803

申请日：2020-08-07

Applicant: ABB Schweiz AG CH-5400 Baden

Inventor： Jan Poland ,  Daniel Chartouni ,  Alexandre Oudalov ,  James Ottewill ,  Erald Pjetri

IPC: H02J7/00 ,  B60L58/16 ,  G01R31/392

Abstract: A method can be used to perform a state of health (SoH) estimation for a rechargeable battery energy storage system during operation of the rechargeable battery energy storage system. The rechargeable battery energy storage system includes a plurality of parallel strings that are individually controllable. The method includes selecting at least one string from the plurality of parallel strings, placing the selected at least one string into a SoH calibration mode for performing a SoH calibration while concurrently maintaining at least one other string of the plurality of parallel strings in operative mode, and causing the selected at least one string to return to the operative mode after the SoH calibration has been completed for the selected at least one string.

公开(公告)号：US20240417862A1

公开(公告)日：2024-12-19

申请号：US18720108

申请日：2022-12-07

Applicant: ABB Schweiz AG

Inventor： Stefan Thorburn ,  Andres Leal-Ayala ,  Matthias Biskoping ,  Daniel Chartouni ,  Bernhard Primas ,  Kai Koenig ,  Georg Gutermuth

IPC: C25B1/04 ,  C25B9/75 ,  C25B9/77 ,  C25B15/023 ,  C25B15/08

Abstract: The invention relates to an alkaline electrolyzer arrangement for producing hydrogen gas. The arrangement includes a first alkaline electrolyzer unit and a second alkaline electrolyzer unit, each one of the first and second alkaline electrolyzer units including a first end plate, a second end plate and a plurality of electrolyzer cells forming a cell stack arranged between the first and second end plates. The alkaline electrolyzer arrangement further including a load bearing surface arranged between the first alkaline electrolyzer unit and the second alkaline electrolyzer unit such that the second alkaline electrolyzer unit is arranged vertically above the first alkaline electrolyzer unit and is supported by the load bearing surface.

公开(公告)号：US11336104B2

公开(公告)日：2022-05-17

申请号：US16987803

申请日：2020-08-07

Applicant: ABB Schweiz AG ,  Hitachi Energy Switzerland AG

Inventor： Jan Poland ,  Daniel Chartouni ,  Alexandre Oudalov ,  James Ottewill ,  Erald Pjetri

IPC: H02J7/00 ,  H02J7/14 ,  G01R31/392 ,  B60L58/16

Abstract: A method can be used to perform a state of health (SoH) estimation for a rechargeable battery energy storage system during operation of the rechargeable battery energy storage system. The rechargeable battery energy storage system includes a plurality of parallel strings that are individually controllable. The method includes selecting at least one string from the plurality of parallel strings, placing the selected at least one string into a SoH calibration mode for performing a SoH calibration while concurrently maintaining at least one other string of the plurality of parallel strings in operative mode, and causing the selected at least one string to return to the operative mode after the SoH calibration has been completed for the selected at least one string.

公开(公告)号：US20240402112A1

公开(公告)日：2024-12-05

申请号：US18799249

申请日：2024-08-09

Applicant: ABB Schweiz AG

Inventor： Matthias Biskoping ,  Bernhard Primas ,  Andres Leal-Ayala ,  Georg Gutermuth ,  Kai Koenig ,  Stefan Thorburn ,  Daniel Chartouni

IPC: G01N27/02 ,  C25B1/04 ,  C25B9/77 ,  C25B15/023 ,  G01N33/00

Abstract: A method for operating a plurality of electrolyzer-stacks includes determining a concentration of impurities, which is originated by a second reaction gas electrochemically produced at a second electrode type of each of the electrolyzer-stacks, within a first gas stream; generating a trigger signal if the concentration of the impurities of the second reaction gas within the merged first reaction gas exceeds a specific second reaction gas level; identifying at least one electrolyzer-stack out of the plurality of electrolyzer-stacks, which is low performing in respect to excessively feeding second reaction gas impurities into the first gas stream, by measuring a current density of at least one electrolyzer-stack of the plurality of electrolyzer-stacks, if the trigger signal is generated.