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    ELECTROLYSIS SYSTEM AND OPERATION METHOD THEREFOR
    2.
    发明公开
    ELECTROLYSIS SYSTEM AND OPERATION METHOD THEREFOR 审中-公开

    公开(公告)号：EP4401283A1

    公开(公告)日：2024-07-17

    申请号：EP23213011.2

    申请日：2023-11-29

    申请人： SMA Solar Technology AG

    发明人： UNRU, Alexander ,  VOLL, Bernhard ,  STIEBER, Heiko ,  KEISER, Jens ,  CLARK, Luke

    IPC分类号： H02J15/00

    CPC分类号： H02J15/008

    摘要： An electrolysis system (1) includes an electrolyser (10) and a conversion device (20) for power supply of the electrolyser (10) out of a grid (30) is disclosed. The electrolyser (10) includes a plurality of electrolysis cells (11) connected in series to each other. The series connection of electrolysis cells (11) is connected through a positive DC-line (2a) and through a negative DC-line (2b) to a DC-output (21) of the conversion device (20). A conscious grounding of the series connection is provided via a grounding line (3) at a connection point (41) of the positive DC-line (2a), at a connection point (41) of the negative DC-line (2b) or at a connection point (41) of an intermediate power line (2c) between two adjacent electrolysis cells (11). The electrolysis system (1) has at least one overcurrent protection circuit (50) that is arranged between two adjacent electrolysis cells (11) of the series connection of electrolysis cells (11) and connected in series with an intermediate power line (2c) connecting the two adjacent electrolysis cells (11) of the series connection of electrolysis cells (11), and/or arranged in series with the grounding line (3) between the connection point (41) and ground (PE). If a ground fault (60) is occurring at the series connection of electrolysis cells (11), one or more of the at least one overcurrent protection circuit (50) is configured to trip and prevents an application of a damaging overcurrent and/or a damaging overvoltage to the electrolysis cells (11). Additionally, the application discloses a method of operating such an electrolysis system.