ENERGY STORAGE APPARATUS AND ENERGY STORAGE SYSTEM

    公开(公告)号:US20250070300A1

    公开(公告)日:2025-02-27

    申请号:US18811991

    申请日:2024-08-22

    Abstract: An energy storage apparatus and an energy storage system. The energy storage apparatus includes a cell and a heating circuit. The heating circuit includes a heating resistor and a switch. The heating resistor and the switch are configured to be connected in series to a power supply loop. The switch in the heating circuit is controlled to be on and off, so that the heating resistor is intermittently connected to and disconnected from the power supply loop. The switch may control, based on a power supply voltage provided by the power supply loop, turn-on time and turn-off time of a line between the power supply loop and the heating resistor in each switching cycle, to dynamically adjust an average heating power of the heating circuit.

    VIENNA RECTIFIER, VIENNA RECTIFIER CONTROL METHOD, AND CHARGING PILE

    公开(公告)号:US20240204682A1

    公开(公告)日:2024-06-20

    申请号:US18418431

    申请日:2024-01-22

    CPC classification number: H02M7/219 H02J7/02 H02M1/44 H02J2207/20

    Abstract: When a voltage phase of an ith-phase rectifier circuit of the three-phase rectifier circuit precedes a current phase of the ith-phase rectifier circuit by a first angle, the controller controls a switch of the ith-phase rectifier circuit to be turned on within a second angle after a voltage of the ith-phase rectifier circuit reaches a zero crossing point, where the second angle is greater than or equal to the first angle; and when the current phase of the ith-phase rectifier circuit of the three-phase rectifier circuit precedes the voltage phase of the ith-phase rectifier circuit by the first angle, the controller controls the switch of the ith-phase rectifier circuit to be turned on within a third angle before the voltage of the ith-phase rectifier circuit reaches the zero crossing point, where the third angle is greater than or equal to the first angle.

    LOCATION UPDATE METHOD AND APPARATUS OF PHOTOVOLTAIC STRING

    公开(公告)号:US20220352849A1

    公开(公告)日:2022-11-03

    申请号:US17868105

    申请日:2022-07-19

    Abstract: A photovoltaic string location update method and apparatus includes: obtaining, based on a physical map, a physical location of a first photovoltaic string corresponding to a first logical location in the physical map, the physical map indicating a correspondence between a logical location of a photovoltaic string and a physical location of the photovoltaic string, and the photovoltaic string includes the first photovoltaic string; and when the physical location of the first photovoltaic string in the physical map is different from a first actual physical location of the first photovoltaic string, updating the physical location of the photovoltaic string in the physical map to the first actual physical location, to obtain an updated physical map. The first actual physical location of the photovoltaic string is inconsistent with the physical location in the physical map, to prepare for subsequent operation and maintenance accurately performed on the photovoltaic string.

    ON-BOARD CHARGER, ON-BOARD POWER SYSTEM, AND ELECTRIC VEHICLE

    公开(公告)号:US20250121712A1

    公开(公告)日:2025-04-17

    申请号:US19002272

    申请日:2024-12-26

    Abstract: An example on-board charger includes an insulating housing and an on-board charging device. In the on-board charging device, a bidirectional direct current conversion circuit is configured to receive a first direct current transmitted by a direct current bus, and output a second direct current through a power battery connection port to supply power to a power battery. A first bridge arm circuit is configured to receive an alternating current through an alternating current power supply input port, and output the first direct current. A second bridge arm circuit is configured to receive the first direct current and output a second alternating current through the alternating current load power supply port to supply power to the alternating current load.

    POWER CONVERSION CIRCUIT AND CONTROL METHOD THEREOF, BATTERY PACK, AND ENERGY STORAGE SYSTEM

    公开(公告)号:US20240243604A1

    公开(公告)日:2024-07-18

    申请号:US18413345

    申请日:2024-01-16

    Abstract: A power conversion circuit includes a controller, a first-level DC/DC conversion circuit, a plurality of second-level DC/DC conversion circuits, a switching module, a first capacitor, a plurality of second capacitors, and a battery. When a voltage of the battery is less than a first voltage threshold and voltages of the first capacitor and the second capacitor are less than a third voltage threshold, the controller controls the switching module to be turned off or turned on, so that the plurality of second-level DC/DC conversion circuits are connected in series; or when the voltage of the battery is greater than a second voltage threshold and voltages at two ends of the first capacitor and the second capacitor are less than the third voltage threshold, the controller controls the switching module to be turned off or turned on, so that the plurality of second-level DC/DC conversion circuits are connected in parallel.

    PHOTOVOLTAIC SYSTEM
    6.
    发明申请

    公开(公告)号:US20220209710A1

    公开(公告)日:2022-06-30

    申请号:US17696555

    申请日:2022-03-16

    Abstract: A photovoltaic system includes a plurality of photovoltaic racks, a plurality of photovoltaic strings connected to each photovoltaic rack in the plurality of photovoltaic racks, a detector, and a controller. Each photovoltaic rack is configured to rotate by an angle through the controller. Each photovoltaic string is configured to convert light energy into electric energy. The detector is separately connected to the controller and the plurality of photovoltaic strings, and is configured to detect blocking parameters of the plurality of photovoltaic strings. The controller is connected to the plurality of photovoltaic racks, and is configured to: control, based on illumination angles, the plurality of photovoltaic racks to rotate by an angle, obtain a photovoltaic rack blocking relationship based on the blocking parameters of the plurality of photovoltaic strings, and adjust a rotation angle of a first photovoltaic rack or a second photovoltaic rack based on the photovoltaic rack blocking relationship.

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