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公开(公告)号：US12113396B1
公开(公告)日：2024-10-08
申请号：US18182908
申请日：2023-03-13
Applicant: ABB Schweiz AG
Inventor： Li Qi , Harish Suryanarayana , Silvio Colombi , Taosha Jiang , Yuzhi Zhang , Harry Bye Handlin
CPC classification number: H02J9/062 , H02J1/10 , H02J9/061 , H01M2250/10 , H02J2300/30 , Y02B90/10 , Y02B90/20
Abstract: In one aspect, a fuel cell power system is provided. The fuel cell power system includes a ring bus, a plurality of bidirectional uninterruptible power supplies (UPSs), a plurality of direct current (DC) fuel cell modules, and a plurality of bidirectional direct current to alternating current (DC-AC) power converters. Each of the plurality of UPSs is electrically coupled to at least one battery, an AC utility feed, a load, and via a choke, the ring bus. Each of the plurality of DC fuel cell modules includes one or more fuel cells coupled to a hydrogen storage. Each of the plurality of bidirectional DC-AC power converters is electrically coupled to a corresponding one of the plurality of DC fuel cell modules and a corresponding one of the plurality of bidirectional UPSs at the AC utility feed.
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公开(公告)号：US20240313574A1
公开(公告)日：2024-09-19
申请号：US18182908
申请日：2023-03-13
Applicant: ABB Schweiz AG
Inventor： Li Qi , Harish Suryanarayana , Silvio Colombi , Taosha Jiang , Yuzhi Zhang , Harry Bye Handlin
IPC: H02J9/06
CPC classification number: H02J9/062 , H02J1/10 , H02J9/061 , H01M2250/10 , H02J2300/30 , Y02B90/10 , Y02B90/20
Abstract: In one aspect, a fuel cell power system is provided. The fuel cell power system includes a ring bus, a plurality of bidirectional uninterruptible power supplies (UPSs), a plurality of direct current (DC) fuel cell modules, and a plurality of bidirectional direct current to alternating current (DC-AC) power converters. Each of the plurality of UPSs is electrically coupled to at least one battery, an AC utility feed, a load, and via a choke, the ring bus. Each of the plurality of DC fuel cell modules includes one or more fuel cells coupled to a hydrogen storage. Each of the plurality of bidirectional DC-AC power converters is electrically coupled to a corresponding one of the plurality of DC fuel cell modules and a corresponding one of the plurality of bidirectional UPSs at the AC utility feed.
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公开(公告)号：US11955835B2
公开(公告)日：2024-04-09
申请号：US17500553
申请日：2021-10-13
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Li Qi , Taosha Jiang , Yuzhi Zhang , Silvio Colombi
CPC classification number: H02J9/062 , H02J9/068 , G06F1/263 , H02J2300/30
Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.
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公开(公告)号：US20230115739A1
公开(公告)日：2023-04-13
申请号：US17500553
申请日：2021-10-13
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Li Qi , Taosha Jiang , Yuzhi Zhang , Silvio Colombi
IPC: H01M8/04225 , H02J9/06 , H05K7/14 , H01M8/04228
Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.
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公开(公告)号：US10693293B2
公开(公告)日：2020-06-23
申请号：US15344013
申请日：2016-11-04
Applicant: ABB Schweiz AG
Inventor： Li Qi , Jiuping Pan , Yao Chen , Guoju Zhang
Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.
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Patent Agency Ranking
公开(公告)号：US09819188B1
公开(公告)日：2017-11-14
申请号：US15358814
申请日：2016-11-22
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Li Qi , Hongbo Jiang
CPC classification number: H02J3/36 , H02M1/32 , H02M5/458 , H02M5/4585 , H02M7/483 , H02M2007/4835
Abstract: Unique systems, methods, techniques and apparatuses of power transmission systems are disclosed herein. One exemplary embodiment is an AC power transmission system converted for transmission of high voltage direct current (HVDC) power, the converted system comprising an AC cable system, a first converter system, a second converter system, and a control system. The first converter system is structured to receive and convert AC power to DC power and output the DC power. The second power converter system is structured to receive the DC power, convert the DC power to a second AC power, and output the second AC power. The control system is structured to receive power demand information, determine a reduced DC voltage less than a rated HVDC voltage, control the first converter system such that the DC power is controlled to the reduced voltage, and control the second power converter system to operate in an active power control mode.
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公开(公告)号：US11230202B2
公开(公告)日：2022-01-25
申请号：US16715716
申请日：2019-12-16
Applicant: ABB Schweiz AG
Inventor： Li Qi
Abstract: A system for charging multiple electric vehicles is provided. The system includes a first electrical converter that supplies DC power to a ring bus. The ring bus is separated into a plurality of DC buses by electrical breakers. Second converters are connected to the ring bus and convert the DC power supply to a DC voltage suitable for charging electric vehicles connected thereto.
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公开(公告)号：US11532933B2
公开(公告)日：2022-12-20
申请号：US16682300
申请日：2019-11-13
Applicant: ABB Schweiz AG
Abstract: According to one aspect of the present disclosure, an energy storage system includes one or more power sources, one or more energy storage components, and one or more solid state circuit breakers disposed between the one or more power sources and the one or more energy storage components such that electrical power is exchanged between the one or more power sources to the one or more energy storage components through the one or more solid state circuit breakers. The energy storage system also includes a controller configured to operate the one or more solid state circuit breakers to control current exchanged with the one or more energy storage components and protect the one or more energy storage components from the one or more power sources during a fault condition.
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公开(公告)号：US10411587B2
公开(公告)日：2019-09-10
申请号：US15840737
申请日：2017-12-13
Applicant: ABB Schweiz Ag
Inventor： Li Qi , Helen-Xing Huang , Xianyong Feng , Jiuping Pan
Abstract: Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.
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公开(公告)号：US20180166972A1
公开(公告)日：2018-06-14
申请号：US15840737
申请日：2017-12-13
Applicant: ABB Schweiz Ag
Inventor： Li Qi , Helen-Xing Huang , Xianyong Feng , Jiuping Pan
CPC classification number: H02M1/32 , H02M1/08 , H02M7/219 , H02M7/483 , H02M2007/4835
Abstract: Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.
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