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公开(公告)号：US20230125181A1
公开(公告)日：2023-04-27
申请号：US18048804
申请日：2022-10-21
Applicant: ABB Schweiz AG
Inventor： Ahmed Abdelhakim , Cicero Postiglione , Arber Haxhiu
IPC: H02M3/158 , H02M1/00 , H02M7/5387
Abstract: A buck-assisted split-source inverter including a DC link having two voltage rails, at least two pairs of series connected switches, a first connection point and a second connection point for receiving voltage terminals of a fuel cell, one of the two voltage rails forming the first connection point, a switch component and an inductor connected in series having a first end formed of a terminal of the switch component and a second end formed of a terminal of the inductor, the first end forming the second connection point for receiving a voltage terminal of a fuel cell. The inverter further including at least two first diodes, a second diode having first and second terminals, wherein the switch component is adapted to be controlled conductive when any one of the lower switches connected to voltage rail forming the first connection point is controlled conductive.
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公开(公告)号：US12046782B2
公开(公告)日：2024-07-23
申请号：US17904146
申请日：2021-02-11
Applicant: ABB Schweiz AG
Inventor： Harri Lipponen , Arber Haxhiu , Sami Kanerva , Mikko Kajava
IPC: H01M8/04302 , H01M8/04537 , H01M8/04858 , H02J1/10 , H02J3/38 , H02M3/158
CPC classification number: H01M8/04302 , H01M8/04559 , H01M8/0488 , H01M8/0494 , H02J1/102 , H02J3/381 , H02M3/1584 , H02J2300/30
Abstract: A fuel cell power system and a method of starting a fuel cell power system. The fuel cell power system includes a fuel cell system having one or more voltage outputs, one or more DC/DC converters each having an output and an input, the input being connectable to the voltage outputs of the fuel cell system, a DC voltage link connectable to the output of the one or more DC/DC converters, and a local load connectable to the DC voltage link. In the system, the local load is adapted to draw power from the fuel cell system to decrease the voltage of the fuel cell system.
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Patent Agency Ranking
公开(公告)号：US11952094B2
公开(公告)日：2024-04-09
申请号：US17306446
申请日：2021-05-03
Applicant: ABB Schweiz AG
Inventor： Harri Lipponen , Arber Haxhiu , Sami Kanerva , Mikko Kajava
CPC classification number: B63H21/17 , B60L50/70 , H02M7/44 , H02P27/06 , B60L2200/32
Abstract: A marine power system including multiple of fuel cells, multiple of D C/AC converters and at least one propulsion motor. In the marine power system, each fuel cell of the multiple of fuel cells is connectable to an input of a DC/AC converter of the multiple of DC/AC converters and at least one group of multiple of DC/AC converters is connectable to the at least one propulsion motor to provide variable frequency and amplitude voltage to the at least one propulsion motor. Further, at least one of the multiple of DC/AC converters is connectable to a fixed frequency AC bus to provide voltage with a fixed frequency and amplitude to the fixed frequency AC bus.
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公开(公告)号：US20240204534A1
公开(公告)日：2024-06-20
申请号：US18543810
申请日：2023-12-18
Applicant: ABB Schweiz AG
Inventor： Arber Haxhiu , Mikko Kajava
Abstract: A power distribution assembly having: a first DC power source and a second DC power source each including at least one fuel cell; a first DC bus bar electrically connected to the first DC power source, and a second DC bus bar electrically connected to the second DC power source and galvanically isolated from it; and a first supply converter electrically connected to the first DC bus bar, and a second supply converter electrically connected to the second DC bus bar. The power distribution assembly includes at least one multi-winding machine unit, which is an alternating current rotating machine unit including a first stator winding and a second stator winding, wherein the first stator winding is electrically connected to the first supply converter, and the second stator winding is electrically connected to the second supply converter.
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公开(公告)号：US20210347459A1
公开(公告)日：2021-11-11
申请号：US17306446
申请日：2021-05-03
Applicant: ABB Schweiz AG
Inventor： Harri Lipponen , Arber Haxhiu , Sami Kanerva , Mikko Kajava
Abstract: A marine power system including multiple of fuel cells, multiple of D C/AC converters and at least one propulsion motor. In the marine power system, each fuel cell of the multiple of fuel cells is connectable to an input of a DC/AC converter of the multiple of DC/AC converters and at least one group of multiple of DC/AC converters is connectable to the at least one propulsion motor to provide variable frequency and amplitude voltage to the at least one propulsion motor. Further, at least one of the multiple of DC/AC converters is connectable to a fixed frequency AC bus to provide voltage with a fixed frequency and amplitude to the fixed frequency AC bus.
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公开(公告)号：US11962244B2
公开(公告)日：2024-04-16
申请号：US18048804
申请日：2022-10-21
Applicant: ABB Schweiz AG
Inventor： Ahmed Abdelhakim , Cicero Postiglione , Arber Haxhiu
IPC: H02M3/158 , H02M1/00 , H02M7/5387
CPC classification number: H02M3/1582 , H02M1/0058 , H02M7/5387
Abstract: A buck-assisted split-source inverter including a DC link having two voltage rails, at least two pairs of series connected switches, a first connection point and a second connection point for receiving voltage terminals of a fuel cell, one of the two voltage rails forming the first connection point, a switch component and an inductor connected in series having a first end formed of a terminal of the switch component and a second end formed of a terminal of the inductor, the first end forming the second connection point for receiving a voltage terminal of a fuel cell. The inverter further including at least two first diodes, a second diode having first and second terminals, wherein the switch component is adapted to be controlled conductive when any one of the lower switches connected to voltage rail forming the first connection point is controlled conductive.
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公开(公告)号：US11601006B2
公开(公告)日：2023-03-07
申请号：US16663837
申请日：2019-10-25
Applicant: ABB Schweiz AG
Inventor： Arber Haxhiu , Sami Kanerva , Ricky Riyadi Chan
IPC: H02J7/34 , H01M8/04858 , H01M16/00 , H02J1/10 , H02M3/158
Abstract: A DC voltage distribution arrangement and method of controlling a DC voltage distribution system, the DC voltage distribution system including a DC voltage bus, a fuel cell electrically connected to the DC voltage bus, an energy storage and an energy storage converter, wherein the input of the energy storage converter is connected to the energy storage and the output of the energy storage converter is connected to the DC bus. The method comprises providing a DC voltage reference for the energy storage converter, the energy storage converter controlling the voltage of the DC voltage bus by providing power from the energy storage or to the energy storage, detecting power flow of the energy storage converter, and changing the DC voltage reference on the basis of the detected power flow to change the power taken from the fuel cell.
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