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公开(公告)号：US10855199B2
公开(公告)日：2020-12-01
申请号：US15781006
申请日：2015-12-18
Applicant: ABB Power Grids Switzerland AG
Inventor： Beat Buchmann , Jerome Fischer
Abstract: A method of discharging a Modular Multilevel Converter (MMC) includes a plurality of phase legs connected in delta configuration. Each leg includes a plurality of series connected submodules, each submodule including an energy storage. The method includes disconnecting the MMC from an electrical grid, discharging the energy storages by means of a circulating current, and reconnecting the MMC to the electrical grid. The discharging includes, for each phase leg, setting a voltage reference, and sequentially selecting submodules in zero state by means of a sorting algorithm for switching each of the selected submodules to plus or minus state until the voltage deviation from the set voltage reference of the energy storage of each submodule in the phase leg is within a predefined range.
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42.发明申请公开(公告)号：US20200350767A1
公开(公告)日：2020-11-05
申请号：US16964741
申请日：2018-02-23
Applicant: ABB Power Grids Switzerland AG
Inventor： Praveen Kumar Barupati , Ying Jiang-Häfner
Abstract: Methods of energizing converters, and converter stations thereof, based on a mix of half-bridge (HB) converter cells and full-bridge (FB) converter cells are provided. According to one embodiment, a method for energizing a converter may include establishing a direct electrical connection between DC terminals of a converter, electrically connecting the converter to an AC power source via AC connectors and obtaining, from the AC power source and for a certain period of time, an AC voltage between two electrical phase lines for charging capacitors of the FB cells connected to the two electrical phase lines. Accordingly, the FB cells will be charged to a higher value and they may be controlled for charging capacitors of the HB submodules to at least a minimum voltage required to start switching devices of the HB submodules by drawing power from the AC power source.
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公开(公告)号：US10825576B2
公开(公告)日：2020-11-03
申请号：US15092405
申请日：2016-04-06
Applicant: ABB Power Grids Switzerland AG
Inventor： Anna Di-Gianni , Bernhard vonAllmen , Denis Tehlar , Navid Mahdizadeh , Thomas Alfred Paul
IPC: H01B3/56 , H02B1/48 , H02B1/28 , H01B17/36 , H02B13/055 , H02B13/035
Abstract: The present invention relates to an apparatus for the generation, the distribution and/or the usage of electrical energy. The apparatus comprises a housing enclosing an insulating space and an electrically conductive part arranged in the insulating space, said insulating space containing a dielectric insulation medium, at least a portion of which being in the form of an insulation gas comprising an organofluorine compound. According to the invention, at least some of the components of the apparatus that are directly exposed to the insulation gas are made of a material which remains unaltered during exposure to the insulation gas for a period of more than 1 year at operational conditions and/or have a surface, at least a portion of which is devoid of any nucleophilic group reactive towards the organofluorine compound and/or reactive towards any degradation product thereof at operational conditions.
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公开(公告)号：US10802480B2
公开(公告)日：2020-10-13
申请号：US15833916
申请日：2017-12-06
Applicant: ABB Power Grids Switzerland AG
Inventor： Gregory A. Cole , William J. Eakins , Daniel T. Lasko , Harshang Shah , Thomas A. Fuhlbrigge , Carlos Morato , Biao Zhang , Luiz V. Cheim , Poorvi Patel , Andrew Salm
Abstract: A submersible inspection device used for inspection of, for example, liquid cooled electrical transformers can include a number of separate cameras for imaging the internal structure of the transformer. The submersible can be configured to communicate to a base station using a number of wireless transmitters and receivers. Signals transmitted to the submersible include command signals useful to effect an action on the submersible but also a heartbeat signal to indicate health of the transmitted signal. A redundant channel selection logic is provided to switch from a channel which no longer receives a heartbeat to another channel that includes a current heartbeat. Multiple signals can be received and evaluated in software, and another signal received via a firmware radio.
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公开(公告)号：US10763030B2
公开(公告)日：2020-09-01
申请号：US15248683
申请日：2016-08-26
Applicant: ABB Power Grids Switzerland AG
Inventor： Charlie Sarver , William E. Pauley
IPC: H01F27/24 , H01F27/26 , H01F27/245
Abstract: A unique transformer includes a first yoke formed of laminations oriented parallel to a first plane; a second yoke formed of laminations oriented parallel to the first plane; and a center leg formed of laminations oriented parallel to a second plane oriented at a non-zero angle relative to the first plane. The center leg includes a first end. The first yoke and the second yoke are in contact with the center leg at the first end. The transformer includes a coil disposed about the center leg, and a butt joint between the center leg and at least one of the first yoke and the second yoke.
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Patent Agency Ranking
46.发明申请公开(公告)号：US20200272118A1
公开(公告)日：2020-08-27
申请号：US16797412
申请日：2020-02-21
Applicant: ABB Power Grids Switzerland AG
Inventor： Andrew Tuckey , Francesco Baccino
IPC: G05B19/042
Abstract: A method of controlling a microgrid includes receiving, by a power management system, PMS, of the microgrid, operating point values for a plurality of controllable assets. The method includes determining, by the PMS, an asset headroom. The method includes determining, by the PMS, a modified operating point value that is dependent on the received operating point value of the controllable asset, the determined asset headroom of the controllable asset, and a total power offset of the microgrid. The method includes controlling, by the PMS, the controllable assets for which the modified operating point values have been determined in accordance with the modified operating point values.
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公开(公告)号：US10742028B2
公开(公告)日：2020-08-11
申请号：US16656581
申请日：2019-10-18
Applicant: ABB Power Grids Switzerland AG
Inventor： Marko Wichert , Kevin Juchem , Oliver Derigs
Abstract: A phase shifting transformer for poly-phase alternating current includes source side terminals, load side terminals, an exciting unit, and a series unit. The exciting unit includes further coils that are magnetically coupled to primary coils and to the secondary coils of the exciting unit to provide further voltages. The further coils are connected in series between the source side terminals and the series unit, so that the voltages at the load terminals are combinations of the quadrature voltages and the further voltages with the source voltages, thus modifying the voltage phase displacement between the source side terminals and the load side terminals.
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公开(公告)号：US20230216288A1
公开(公告)日：2023-07-06
申请号：US17926358
申请日：2021-05-04
Applicant: ABB POWER GRIDS SWITZERLAND AG
Inventor： Sergey Pancheshnyi , Jan Czyzewski
IPC: H02G15/072 , H01R13/66
CPC classification number: H02G15/072 , H01R13/6625 , H01R24/76
Abstract: A socket, connectable to a plug-in device, wherein the plug-in device is a bushing and/or a plug-in cable termination, is described. The socket includes a current conduction path and a field control unit. The field control unit includes a layer arrangement with at least three conductive layers arranged around the current conduction path and separated by an insulating material
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公开(公告)号：US11360120B2
公开(公告)日：2022-06-14
申请号：US16434610
申请日：2019-06-07
Applicant: ABB Power Grids Switzerland AG
Inventor： Gregory A. Cole , William J. Eakins , Daniel T. Lasko , Harshang Shah , Thomas A. Fuhlbrigge , Luiz V. Cheim , Poorvi Patel , Biao Zhang , Saumya Sharma , Sanguen Choi
Abstract: A method and system for acquiring, manipulating and displaying inspection data obtained by sensors associated with submersible inspection vehicle within a housing having a liquid medium is disclosed in the present application. A control system including an electronic controller is operably coupled with the inspection vehicle and is configured to display data transmitted from the sensor and overlay input data from an operator on the display to facilitate real time analysis during the inspection event.
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公开(公告)号：US20220181473A1
公开(公告)日：2022-06-09
申请号：US17600812
申请日：2020-04-01
Applicant: ABB POWER GRIDS SWITZERLAND AG
Inventor： Tobias Wikstroem , Umamaheswara Vemulapati , Thomas Stiasny
IPC: H01L29/74 , H01L29/745 , H01L29/66
Abstract: A power diode comprises a plurality of diode cells (10). Each diode cell (10) comprises a first conductivity type first anode layer (40), a first conductivity type second anode layer (45) having a lower doping concentration than the first anode layer (40) and being separated from an anode electrode layer (20) by the first anode layer (40), a second conductivity type drift layer (50) forming a pn-junction with the second anode layer (45), a second conductivity type cathode layer (60) being in direct contact with the cathode electrode layer (60), and a cathode-side segmentation layer (67) being in direct contact with the cathode electrode layer (30). A material of the cathode-side segmentation layer (67) is a first conductivity type semiconductor, wherein an integrated doping content of the cathode-side, which is integrated along a direction perpendicular to the second main side (102), is below 2·1013 cm−2, or a material of the cathode-side segmentation layer (67) is an insulating material. A horizontal cross-section through each diode cell (10) along a horizontal plane (K1) comprises a first area where the horizontal plane (K1) intersects the second anode layer (45) and a second area where the plane (K1) intersects the drift layer (50).
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