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公开(公告)号：US10461651B2
公开(公告)日：2019-10-29
申请号：US15832283
申请日：2017-12-05
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana
Abstract: Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is a resonant power converter comprising a DC bus, a primary leg, an auxiliary leg, and an LC resonant circuit. The auxiliary leg is coupled between DC bus and includes a first auxiliary switch and a second auxiliary switch coupled at an auxiliary midpoint connection. The LC resonant circuit includes an air-core resonant inductor and a resonant capacitor coupled between the auxiliary midpoint connection and a primary midpoint connection of the primary leg. A controller is structured to control the first and second auxiliary switch and the first and second primary switch so as to provide resonant operation of the LC resonant circuit effective to provide a substantially zero voltage condition across the first and second primary switch while toggling the switches.
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公开(公告)号：US20180241300A1
公开(公告)日：2018-08-23
申请号：US15958220
申请日：2018-04-20
Applicant: ABB Schweiz Ag
Inventor： Harish Suryanarayana , Jiaqi Liang , Jukka Pekka Kittila , Wen Ouyang
IPC: H02M1/088 , H02M3/335 , H01F3/14 , H01F29/14 , H01F27/24 , H01F27/28 , H02J50/12 , H02M7/537 , H02M1/00 , H01F21/08
CPC classification number: H02M1/088 , H01F3/14 , H01F21/08 , H01F27/24 , H01F27/28 , H01F27/2895 , H01F29/14 , H01F2029/143 , H02J50/12 , H02M3/33507 , H02M3/33584 , H02M7/537 , H02M7/5387 , H02M2001/0003 , H02M2001/0058 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
Abstract: Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a DC biasing circuit operatively coupled with the variable inductor. The variable inductor comprises a toroidal core, a first winding wound around the toroidal core and coupled with the switching device and the output/input terminal, a second core structured to overlap a portion of the toroidal core, and a second winding wound around the second core and coupled with the DC biasing circuit. The DC biasing circuit is controllable to vary the inductance of the variable inductor by saturating a portion of the toroidal core.
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公开(公告)号：US20230187963A1
公开(公告)日：2023-06-15
申请号：US17548829
申请日：2021-12-13
Applicant: ABB Schweiz AG
Inventor： Yuzhi Zhang , Yu Du , Xiaoqing Song , Harish Suryanarayana , Veerakumar Bose , Thomas Anthony Kendzia, III , Harshang Shah , Christopher Alan Belcastro
CPC classification number: H02J9/06 , H02J7/0047 , H02J7/00712
Abstract: A method of operating a static transfer switch is provided. The method includes monitoring a voltage waveform for each phase of first and second power sources, and calculating flux for each phase of the power sources. The method also includes determining (i) a first flux difference between the respective flux of the first phases of the first and second power sources, (ii) a second flux difference between the respective flux of the second phases of the first and second power sources, and (iii) a third flux difference between the respective flux of the third phases of the first and second power sources. The method further includes turning off a third solid-state switch to disconnect the third phase of the first power source from a load, in response to the controller determining that the third flux difference is greater the first and second flux differences.
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公开(公告)号：US20240355531A1
公开(公告)日：2024-10-24
申请号：US18304152
申请日：2023-04-20
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Dorai Yelaverthi , Arun Kadavelugu
CPC classification number: H01F27/2823 , H01F27/26 , H01F41/0206 , H01F41/04
Abstract: A device may include a core structure having low permeability characteristics and defining a first cross-sectional area, a coil member including one or more loops that winds around the core structure and defines a second cross-sectional area. The second cross-sectional area is between 1.2 to 5 times larger than the first cross-sectional area. The device may include a frame member positioned around the core structure or a portion thereof and the coil member may wind around the frame member to define the second cross-sectional area. The core structure may be composed of a low permeability magnetic material having a low relative permeability. The core structure may be composed of a high permeability magnetic material and the core structure may further include an air gap structure to enable the core structure to demonstrate the low permeability characteristics.
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公开(公告)号：US11682920B1
公开(公告)日：2023-06-20
申请号：US17548829
申请日：2021-12-13
Applicant: ABB Schweiz AG
Inventor： Yuzhi Zhang , Yu Du , Xiaoqing Song , Harish Suryanarayana , Veerakumar Bose , Thomas Anthony Kendzia, III , Harshang Shah , Christopher Alan Belcastro
CPC classification number: H02J9/06 , H02J7/0047 , H02J7/00712 , H02J9/068
Abstract: A method of operating a static transfer switch is provided. The method includes monitoring a voltage waveform for each phase of first and second power sources, and calculating flux for each phase of the power sources. The method also includes determining (i) a first flux difference between the respective flux of the first phases of the first and second power sources, (ii) a second flux difference between the respective flux of the second phases of the first and second power sources, and (iii) a third flux difference between the respective flux of the third phases of the first and second power sources. The method further includes turning off a third solid-state switch to disconnect the third phase of the first power source from a load, in response to the controller determining that the third flux difference is greater the first and second flux differences.
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Patent Agency Ranking
公开(公告)号：US09871467B2
公开(公告)日：2018-01-16
申请号：US15159227
申请日：2016-05-19
Applicant: ABB Schweiz AG
Inventor： Jiaqi Liang , Harish Suryanarayana , Jukka-Pekka Kittila
CPC classification number: H02M7/537 , H02M3/33569 , H02M7/483 , H02M2001/0058 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
Abstract: Unique systems, methods, techniques and apparatuses of zero-voltage transition pulse width modulation resonant converters are disclosed. One exemplary embodiment is a zero-voltage transition PWM resonant converter comprising a DC bus, a first switching device, a second switching device, a resonant tank circuit, an auxiliary circuit having a flying capacitor and a plurality of auxiliary switching devices, and a controller. The controller is structured to control the first switching device, the second switching device, and the plurality of auxiliary switching devices to provide resonant operation of the tank circuit effective to provide a substantially zero voltage condition across the first switching device when turning the first switching device on or off and to provide a substantially zero voltage condition across the second switching device when turning the second switching device on or off.
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公开(公告)号：US20240339256A1
公开(公告)日：2024-10-10
申请号：US18297292
申请日：2023-04-07
Applicant: ABB Schweiz AG
Inventor： Dorai Yelaverthi , Harish Suryanarayana , Arun Kadavelugu
CPC classification number: H01F27/26 , H01F27/28 , H01F41/0206 , H01F41/04
Abstract: A device includes a core structure including a first end plate and a second end plate. The first end plate and second end plate include a first portion and a second portion that extend from opposing sides of a third portion and include an increasing cross-sectional area configured to provide soft saturation properties in response to increasing electrical current. The core structure may further include a coil member and a core section. The core section is disposed between the first plate member and second plate member. The core section includes a first core member, a second core member, and a central disc member. The core section also includes a channel formed between the central disc member and the first core member and the second core member to enable the coil member to circumferentially wind around the central disc member.
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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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