Systems and methods for improving cell balancing and cell failure detection

    公开(公告)号:US11159038B2

    公开(公告)日:2021-10-26

    申请号:US16786697

    申请日:2020-02-10

    申请人: UCAP Power, Inc.

    发明人: Ilya Kaminsky

    IPC分类号: H02J7/00 G01R31/3835

    摘要: In one aspect, an embodiment of this invention comprises an energy storage device balancing apparatus. The energy storage device balancing apparatus comprises a balancing circuit and an alarm circuit. Both the balancing circuit and the alarm circuit are coupled to the energy storage device. The balancing circuit is configured to monitor a voltage of the energy storage cell and dissipate energy from the energy storage cell if the voltage is at or above a first reference voltage. The alarm circuit is configured to generate an alarm when the voltage of the energy storage cell is at or above a second reference voltage and dissipate energy from the energy storage cell when the voltage is at or above the second reference voltage.

    Modular ultracapacitor energy storage/power delivery apparatus and methods

    公开(公告)号:US11495974B2

    公开(公告)日:2022-11-08

    申请号:US16810741

    申请日:2020-03-05

    申请人: UCAP Power, Inc.

    IPC分类号: H02J7/00 H01G11/00

    摘要: A modular integrated ultracapacitor-based energy storage and power delivery apparatus (UCAP module) is described. In some embodiments, the UCAP module comprises: at least one ultracapacitor cell coupled together in a series, parallel, or combination of both series and parallel configuration; an integrated charging unit; conductive hardware electrically coupling the ultracapacitors cells together; at least one UCAP terminal rod extending throughout the UCAP module and used to route power within the UCAP module and in some embodiments to other UCAP modules; and a protective casing. In some embodiments the UCAP terminal rod couples the UCAP module to at least one additional UCAP module in a series, parallel, or a combination of both series and parallel configurations. In other embodiments, the UCAP module further comprises connector rods that electrically and mechanically couple the UCAP module to at least one additional UCAP module.

    Parallel string voltage support
    5.
    发明授权

    公开(公告)号:US11482878B2

    公开(公告)日:2022-10-25

    申请号:US15481804

    申请日:2017-04-07

    申请人: UCAP Power, Inc.

    发明人: Robert Shaw Lynds

    摘要: This disclosure provides systems, methods and apparatus for an energy storage system. In one aspect, the energy storage system includes a controller configured to connect a first capacitor system and a second capacitor system in series with an output of a battery system during a high current demand event such that the voltage of the output of the battery system is supported within the voltage constraints of the output of that battery system.

    APPARATUS FOR IMPROVING CELL BALANCING AND CELL FAILURE DETECTION

    公开(公告)号:US20220014027A1

    公开(公告)日:2022-01-13

    申请号:US17181968

    申请日:2021-02-22

    申请人: UCAP Power, Inc.

    发明人: Ilya Kaminsky

    IPC分类号: H02J7/00 B60L3/00 B60L58/22

    摘要: Disclosed are systems and methods for improved cell-balancing circuits, back-up failure detection circuits and alarm extension for cells and modules of an energy storage system. One aspect of the invention comprises an energy storage device cell balancing apparatus. The apparatus comprises a first and a second dissipative component connected in series. The first dissipative component and the second dissipative component are coupled to an energy storage cell. The second dissipative component monitors a voltage of the energy storage cell and, if the voltage is at or above a reference voltage, the second dissipative component conducts a discharging current through the first and second dissipative components. The first dissipative component maintains a voltage drop across the first dissipative component that is proportional to the voltage of the energy storage cell. The second dissipative component maintains a constant voltage drop across the second dissipative component when conducting the discharging current.