Uninterruptible power supply and method of operation

    公开(公告)号:US11539303B2

    公开(公告)日:2022-12-27

    申请号:US17209429

    申请日:2021-03-23

    Applicant: ABB Schweiz AG

    Abstract: An uninterruptible power supply (UPS) is provided that includes a split direct current (DC) link having a first capacitor coupled between a positive DC link terminal and a first node, and a second capacitor coupled between the first node and a negative DC link terminal. The UPS also includes a rectifier coupled to an input of the split DC link and a controller coupled to the rectifier. The rectifier includes first, second, and third legs, wherein each leg is configured to convert a first alternating current (AC) voltage received from an AC source into a DC voltage to be provided to the split DC link, and a fourth leg configured to balance DC link voltages of the first and second capacitors. The controller is configured to maintain functionality of the rectifier during at least one of a partial utility power outage, a full utility outage, and a failure of at least one of the first, second, third, and fourth legs.

    Power Supply Device for Powering a Power Line

    公开(公告)号:US20220004242A1

    公开(公告)日:2022-01-06

    申请号:US17365482

    申请日:2021-07-01

    Applicant: ABB Schweiz AG

    Abstract: A power supply for a power line includes a synchronization module having a receiver configured for receiving a clock signal from a satellite-based positioning system and an oscillator configured for generating a periodic signal synchronized to the received clock signal. The power supply includes an inverter module having an inverter configured for supplying an AC voltage to the power line, receiving the periodic signal from the synchronization module, and controlling the inverter using the received periodic signal as a synchronization reference signal for the supplied AC voltage. The power supply further includes a power exchange control module configured for: monitoring an active power flow P from the inverter module to the power line, determining whether the active power flow P satisfies a reverse-flow condition, and when the reverse-flow condition is determined, adapting at least one of a phase and an output voltage of the supplied AC voltage.

    COMMUNICATION SYSTEMS AND METHODS IN UNINTERRUPTIBLE POWER SUPPLY SYSTEMS

    公开(公告)号:US20190393720A1

    公开(公告)日:2019-12-26

    申请号:US16018648

    申请日:2018-06-26

    Applicant: ABB Schweiz AG

    Inventor: Silvio Colombi

    Abstract: A power supply system is provided. The power supply system includes at least one uninterruptible power supply (UPS), a catcher system including at least one catcher UPS, at least one static transfer switch (STS), each STS electrically coupled between an associated UPS and an associated load, each STS further electrically coupled between the catcher system and the associated load, and each STS operable to selectively switch between supplying power to the associated load from the associated UPS and supplying power to the associated load from the catcher system. The power supply system further includes a first communications channel communicatively coupling the at least one UPS to the catcher system, and at least one second communications channel, wherein each STS is communicatively coupled to the associated UPS by a second communications channel of the at least one second communications channel.

    Power Supply System and Operating Method

    公开(公告)号:US20250038569A1

    公开(公告)日:2025-01-30

    申请号:US18911351

    申请日:2024-10-10

    Applicant: ABB Schweiz AG

    Abstract: A power supply system includes one or more uninterruptible power supplies (UPSs), a catcher system, one or more communication channels, each communicatively coupling one of the UPSs with another one of the UPSs or with the catcher system, and one or more loads, each associated with at least one of the UPSs. Each of the UPSs is a multiport uninterruptible power supply (UPS) comprising a multiport transfer switch operable to selectively switch between at least a first mode, a second mode, and a third mode of the UPS supplying power to the load or loads associated with the UPS. In the first mode, power is supplied from the grid via a converter of the UPS, in the second mode, power is supplied from the catcher system via the UPS, and, in the third mode, power is supplied from the grid via the UPS bypassing the converter of the UPS.

    Uninterruptible power supply arrangement for subsea applications

    公开(公告)号:US12040657B2

    公开(公告)日:2024-07-16

    申请号:US18245831

    申请日:2021-09-13

    Applicant: ABB Schweiz AG

    CPC classification number: H02J9/061 B63J3/04 H02J9/068 H02J2310/42

    Abstract: An uninterruptible power supply, UPS, arrangement for subsea applications, including a container arranged and configured for subsea operation, and the following main modules arranged inside the container: at least one battery module of a predetermined battery capacity; at least one UPS module governing the battery module, the UPS module having a predetermined UPS capacity; at least one control module configured for interfacing and managing the battery module and the UPS module. The UPS arrangement is arranged and configured to vary its overall capacity based on at least the number of battery and UPS modules, wherein the at least one battery module and the at least one UPS module are internally arranged such that the heat losses from the UPS module are used to heat the battery module.

    METHOD AND CONTROL TO INTEGRATE FUEL CELLS IN DATACENTERS WITH RING-BUS ARCHITECTURE

    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

    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.

    Uninterruptible power supply and method of operation

    公开(公告)号:US10958184B2

    公开(公告)日:2021-03-23

    申请号:US14327171

    申请日:2014-07-09

    Applicant: ABB Schweiz AG

    Abstract: An uninterruptible power supply (UPS) is provided that includes a split direct current (DC) link having a first capacitor coupled between a positive DC link terminal and a first node, and a second capacitor coupled between the first node and a negative DC link terminal. The UPS also includes a rectifier coupled to an input of the split DC link and a controller coupled to the rectifier. The rectifier includes first, second, and third legs, wherein each leg is configured to convert a first alternating current (AC) voltage received from an AC source into a DC voltage to be provided to the split DC link, and a fourth leg configured to balance DC link voltages of the first and second capacitors. The controller is configured to maintain functionality of the rectifier during at least one of a partial utility power outage, a full utility outage, and a failure of at least one of the first, second, third, and fourth legs.

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