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.

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.

公开(公告)号：US10700617B1

公开(公告)日：2020-06-30

申请号：US16563425

申请日：2019-09-06

Applicant: ABB Schweiz AG

Inventor： Ahmed Abdelhakim Moustafa Abdelrazek ,  Cicero Postiglione ,  Frans Dijkhuizen

IPC: H02M7/483 ,  H02M7/537

Abstract: A converter converting between a dc voltage at a first voltage level and at least one waveshape at a second higher voltage level has a primary connection port for the dc voltage, one secondary connection port for each waveshape, and one stack of cells for each secondary port. Each stack includes n cells connected in cascade between the primary port and the corresponding secondary port. At least (n−1) of the cells in a stack have: first, second, third, and fourth terminals, a first energy storage, and first, second, and third switches, where the first energy storage is connected in parallel with the first and second switches, the first terminal is provided at a junction between the first energy storage and the first switch, and the second terminal is provided at a junction between the first energy storage element, the second switch and the third switch.