Sensitivity Analysis for a System and Method for Optimizing an Energy Management

    公开(公告)号:US20250085682A1

    公开(公告)日:2025-03-13

    申请号:US18827992

    申请日:2024-09-09

    Applicant: ABB Schweiz AG

    Abstract: A system for optimizing an energy management of a site, comprising: an energy optimizer, wherein the energy optimizer determines one or more optimization goals based on an optimization algorithm, a data variator adapted to provide at least one first energy data input and at least one second energy data input, different to the first energy data input, to the energy optimizer, wherein the energy optimizer receives the first and second energy data inputs from the data variator, and to determine, based the first and second energy data inputs, respective at least one first and second energy data outputs via the optimization algorithm, wherein a data sensitivity of the energy optimizer is determined with respect to the first and second energy data inputs and the first and second energy data outputs.

    Hydrogen Production Plant Comprising Two Types of Electrolysis Systems

    公开(公告)号:US20240301575A1

    公开(公告)日:2024-09-12

    申请号:US18667600

    申请日:2024-05-17

    Applicant: ABB Schweiz AG

    CPC classification number: C25B15/02 C25B1/04 C25B9/70

    Abstract: A method for producing hydrogen using two types of electrolysis systems, the first having an active DC module and at least one first-type electrolyzer producing a first hydrogen output by using a first power from the active DC module, and the second electrolysis system having a passive DC module and at least one second-type electrolyzer producing a second hydrogen output by using a second power from the passive DC module. The method includes increasing the first hydrogen output and when it crosses a first predefined hydrogen output threshold, switching on the second electrolysis system and decreasing the first hydrogen output of the first electrolysis system to the first predefined hydrogen output threshold minus the second hydrogen output, so that an overall hydrogen output of the hydrogen production plant is a sum of the first hydrogen output and the second hydrogen output.

    An Alkaline Electrolyzer Arrangement

    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

    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.

    Method for Controlling Operation of an Electrolyzer Plant

    公开(公告)号:US20240370004A1

    公开(公告)日:2024-11-07

    申请号:US18772777

    申请日:2024-07-15

    Applicant: ABB Schweiz AG

    Abstract: A method for controlling operation of an electrolyzer plant includes using a first model to determine first operating points for a first period of time; using a second model to simulate operation of the electrolyzer plant for the first operating points for a second period of time that is shorter than and comprised in the first period of time, the second model being a model having higher prediction accuracy for the operation of the electrolyzer plant than the first model, and determining whether the simulated operation meets a predetermined requirement. Upon determining that the simulated operation does not meet the predetermined requirement, adjusting one or more parameters and/or one or more boundary conditions of the first model, and upon determining that the simulated operation meets the predetermined requirement, setting the first operating points as target operating points for the predetermined second period of time.

    Method for Evaluating an Energy Efficiency of a Site

    公开(公告)号:US20230236563A1

    公开(公告)日:2023-07-27

    申请号:US18193863

    申请日:2023-03-31

    Applicant: ABB Schweiz AG

    CPC classification number: G05B19/042 G05B2219/2639

    Abstract: A method for evaluating an energy efficiency of a second energy consumption scenario of a site includes obtaining a first energy consumption scenario, which comprises a first time-series of energy consumption data of at least one device, and a quality measure of the first energy consumption scenario; obtaining the second energy consumption scenario, which comprises a second time-series of energy consumption data, wherein the second energy consumption scenario has a same or a shorter duration than the first energy consumption scenario; comparing the second time-series of energy consumption data to the first time-series of energy consumption data; and if or when the second time-series of energy consumption data is similar to the first time-series of energy consumption data, outputting the quality measure of the first energy consumption scenario.

    Computer-Implemented Method for Determining an Energy Ratio for a Consumed Energy

    公开(公告)号:US20240426879A1

    公开(公告)日:2024-12-26

    申请号:US18746180

    申请日:2024-06-18

    Applicant: ABB Schweiz AG

    Abstract: A method for determining an energy ratio includes providing an energy network model configured to describe an energy flow between a plurality of assets in an energy network, the assets including energy sources and consumers; receiving load demand and power source data; controlling and tracking the first energy flow from the first energy source to the plurality of assets in the energy network and the second energy flow from the second energy source to the plurality of assets in the energy network based on the energy network model and the received load demand data and the received power source data; tracking one or more consuming times of the at least one energy consuming asset; and determining an energy ratio for the at least one energy consuming asset based on the tracked first energy flow and the second energy flow and the tracked consuming time of an energy consuming asset.

    Method for Operating a Plurality of Electrolyser-Stacks

    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

    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.

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