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公开(公告)号：US10135237B2
公开(公告)日：2018-11-20
申请号：US14568817
申请日：2014-12-12
Applicant: ABB Schweiz AG
Inventor： Silvio Colombi , Andrea Mannuccini , Luigi De Bernardi
Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), each UPS of the plurality of UPSs including an inverter, a ring bus, and at least one controller communicatively coupled to the plurality of UPSs, the at least one controller configured to control at least one bridge current in each UPS, the at least one bridge current controlled such that the inverter of each UPS operates in a partial current limiting regime between a full current limiting regime and a linear mode.
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公开(公告)号：US11355957B2
公开(公告)日：2022-06-07
申请号：US16267374
申请日：2019-02-04
Applicant: ABB Schweiz AG
Inventor： Lorenzo Giuntini , Andrea Mannuccini , Silvio Colombi
IPC: H02J3/38 , H02J9/00 , H02J9/06 , H02H7/26 , H02H3/05 , H01H85/46 , H02H3/08 , H02H7/20 , H02H1/00
Abstract: An uninterruptible power supply (UPS) system is provided. The UPS system includes a plurality of UPSs, a ring bus coupled to the UPSs, a plurality of chokes, and at least one static switch coupled between an associated UPS of the UPSs and the ring bus. Each choke electrically couples an associated UPS to the ring bus. The static switch is switchable to selectively bypass at least one choke.
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Patent Agency Ranking
公开(公告)号：US20220094197A1
公开(公告)日：2022-03-24
申请号：US17480450
申请日：2021-09-21
Applicant: ABB Schweiz AG
Inventor： Silvio Colombi , Andrea Mannuccini
Abstract: The disclosure relates to a method for controlling an uninterruptable power supply and a respective computer program. The uninterruptable power supply comprises a grid connection, a grid switch connected to the grid connection, a rectifier and an inverter interconnected via a DC link, an energy storage connected to the DC link, a load connection, to which the inverter is connected, and a bypass switch, which is connected in parallel to the rectifier, the DC link and the inverter between the grid switch and the load connection, wherein the grid switch is a mechanical switch and the bypass switch is a semiconductor switch.
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14.发明授权公开(公告)号：US10826381B2
公开(公告)日：2020-11-03
申请号：US15955154
申请日：2018-04-17
Applicant: ABB Schweiz AG
Inventor： Lorenzo Giuntini , Andrea Mannuccini
Abstract: A control system and methods for a multilevel power converter are provided. The converter includes a rectifier coupled to a DC link having a midpoint coupled to electrical ground that divides the DC link into two halves. The control system is configured to generate a reference current command for controlling an output of the rectifier, the reference current command generated based on a difference between a desired and measured DC link voltage value. The system is also configured to determine a zero-sequence current component of input current supplied to the multilevel power converter, wherein the zero-sequence current component is associated with non-linearities in said multilevel power converter that cause ground current injection into the input current by the rectifier. The system is further configured to subtract the determined zero-sequence current component from the reference current command to reduce the ground current injected into the input current by the rectifier.
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公开(公告)号：US10608428B2
公开(公告)日：2020-03-31
申请号：US14568632
申请日：2014-12-12
Applicant: ABB Schweiz AG
Inventor： Andrea Mannuccini , Silvio Colombi
Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), each UPS of the plurality of UPSs including an inverter, a ring bus, and at least one controller communicatively coupled to the plurality of UPSs, the at least one controller configured to determine when a bridge current in at least one UPS of the plurality of UPSs reaches a predetermined bridge current limit, and modify, in response to the determination, a capacitor voltage in the inverter of the at least one UPS to reduce a DC fault current component of a load current in the inverter.
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公开(公告)号：US20190260227A1
公开(公告)日：2019-08-22
申请号：US16405203
申请日：2019-05-07
Applicant: ABB Schweiz AG
Inventor： Silvio Colombi , Andrea Mannuccini , Harry Bye Handlin , Lorenzo Giuntini
Abstract: In at least one embodiment, a system may include a plurality of uninterruptible power supplies (UPSs), a ring bus, a plurality of chokes, with each choke of the plurality of chokes electrically coupling an associated UPS of the plurality of UPSs to the ring bus, and at least one switch electrically coupled between at least one UPS of the plurality of UPSs and the ring bus, with the at least one switch having an opening time of less than 10 milliseconds.
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公开(公告)号：US10284008B2
公开(公告)日：2019-05-07
申请号：US15263821
申请日：2016-09-13
Applicant: ABB Schweiz AG
Inventor： Andrea Mannuccini , Lorenzo Giuntini
Abstract: An uninterruptible power supply (UPS) system is provided. The UPS system includes a plurality of UPSs, a ring bus that electrically couples the UPSs together, a static switch coupled between an associated UPS of the UPSs and the ring bus, and a controller. The controller receives current data representative of an inverter current and a load current associated with the associated UPS. An output capacitor of the associated UPS is coupled to a node that conducts the inverter current and the load current. The controller further calculates a measured current based on the received current data, determines a voltage of said output capacitor, generates a derived current based on the determined voltage and a predetermined capacitance of said output capacitor, compares the measured current and the derived current to identify a fault location, and controls said static switch based on the identified fault location.
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