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    Electrolyzer power conversion
    1.
    发明授权
    Electrolyzer power conversion 有权

    公开(公告)号：US12132322B2

    公开(公告)日：2024-10-29

    申请号：US18178857

    申请日：2023-03-06

    申请人： Bloom Energy Corporation

    发明人： Prasad Pmsvvsv ,  Rakesh Roy ,  Soma Depuru

    IPC分类号： H02J3/38 ,  C25B9/65

    CPC分类号： H02J3/381 ,  C25B9/65 ,  H02J2207/20 ,  H02J2300/26

    摘要： A power control device for an electrolyzer that is configured to receive electrical current from a plurality of electrical power sources, rectify alternating current from a first subset of the plurality of electrical power sources, convert direct current from a second subset of the plurality of electrical power sources, provide power from the first subset and the second subset of electrical power sources to an energy bus, and receive, at the electrolyzer, power from the energy bus.

    Fuel cell system including ATO injector and method of operating the same
    5.
    发明授权
    Fuel cell system including ATO injector and method of operating the same 有权

    公开(公告)号：US12027733B2

    公开(公告)日：2024-07-02

    申请号：US18063893

    申请日：2022-12-09

    申请人： BLOOM ENERGY CORPORATION

    发明人： David Edmonston ,  David Weingaertner ,  Michael Petrucha ,  Ivan Hartana

    IPC分类号： H01M8/04089 ,  H01M8/10

    CPC分类号： H01M8/04097 ,  H01M8/10

    摘要： A fuel cell system includes a fuel cell stack, an anode tail gas oxidizer (ATO), an ATO injector configured to mix a first portion of an anode exhaust from the fuel cell stack with a cathode exhaust from the fuel cell stack and to provide a mixture of the first portion of the anode exhaust and the cathode exhaust into the ATO, an anode exhaust conduit which is configured to provide the first portion of the anode exhaust into the ATO injector, and cathode exhaust conduit which is configured to provide at least a portion of the cathode exhaust from the fuel cell stack into the ATO injector. The ATO injector includes injector tubes or injection apertures.

    AUXILIARY CIRCUIT TO INJECT FAULT CURRENT DURING GRID FAULTS
    8.
    发明公开
    AUXILIARY CIRCUIT TO INJECT FAULT CURRENT DURING GRID FAULTS 审中-公开

    公开(公告)号：US20240146050A1

    公开(公告)日：2024-05-02

    申请号：US18493557

    申请日：2023-10-24

    申请人： BLOOM ENERGY CORPORATION

    发明人： Chaitanya MANDELA ,  Prasad PMSVVSV ,  Ranganathan GURUNATHAN ,  Vishal A. GOPALAKRISHNAN ,  Ponkiran PONNAPPAN

    IPC分类号： H02H7/122 ,  H02J3/00

    CPC分类号： H02H7/122 ,  H02J3/0012

    摘要： An auxiliary circuit to inject fault current to a grid is provided. The circuit includes a pair of transformers including a first transformer and a second transformer, and a pair of SCRs including a first SCR and a second SCR. Each SCR remains in an OFF state and an ON state when AC voltage of the grid is in normal range and fault range, respectively. The circuit includes a capacitor electrically connected between the first transformer, the second transformer, and the first SCR. The circuit includes a diode biased by the second transformer and the capacitor to enable charging of the capacitor to a peak of AC voltage during one polarity of AC voltage when the AC voltage is in normal range. The capacitor discharges via the first SCR and the first transformer by injecting the fault current into the grid when the AC voltage is in the fault range.