Relay Array for Grid Connection
    1.
    发明申请

    公开(公告)号:US20250166949A1

    公开(公告)日:2025-05-22

    申请号:US19004603

    申请日:2024-12-30

    Abstract: A relay array may connect an electrical device (e.g., an inverter, power converter, etc.) to a utility grid. Based on a detection of a power interruption or fault, the relay array may disconnect the electrical device from the grid to ensure safety or reduce damage to the electrical device or grid. The relay array may include one or more electromechanical relays (e.g., latching relays). A safety catch may prevent the latching relay(s) from changing states. The electrical device may be configured to facilitate removal of the safety catch once the ability to change states is desired. The latching relay(s) may also be supplied with a power pulse for changing a state of the latching relay(s). The power pulse may be provided by a power bank that may be maintained with power in case of a power interruption or fault.

    Power device terminal backup switch unit

    公开(公告)号:US12301051B2

    公开(公告)日:2025-05-13

    申请号:US18442493

    申请日:2024-02-15

    Abstract: When a power outage occurs, an uninterruptable power supplies may lose all grid connections including a neutral connection which may be connected to ground. To avoid the loss of a ground connection to the power circuits of the UPS, a switch unit may be used to selectively connect a neutral conductor of the circuit to a ground terminal. The switch unit may comprise a power relay, a fast switch device (FSD), and a controller. The power relay and FSD may be connected in series between the neutral conductor of the circuit and a ground terminal. The controller may be configured to: close the FSD when the voltage between ground and neutral (Vng) goes above a first threshold, open the FSD when the voltage between any grid connection and neutral (Vg) goes above a second threshold, and close the FSD when Vg is below the second threshold.

    Systems and Methods For Ground Fault Detection

    公开(公告)号:US20250147120A1

    公开(公告)日:2025-05-08

    申请号:US18940017

    申请日:2024-11-07

    Abstract: Systems and/or methods for mapping power device in a string of serially connected power devices are disclosed herein. A power source may apply a source voltage to a first end of the string. A power system controller coupled to the two ends of the string may send a first signal to the power devices in the string. The power devices in the string, responsive to receiving the first signal, may measure electrical characteristics of the power devices, where the measured electrical characteristics may indicate the parasitic leakage of the power devices. The power devices may send second signals to the power system controller to report the measured electrical characteristics. The power system controller may determine the mapping of the power devices in the string based on the second signals.

    Integrated Photovoltaic Panel Circuitry

    公开(公告)号:US20250125767A1

    公开(公告)日:2025-04-17

    申请号:US18991975

    申请日:2024-12-23

    Inventor: Meir Adest

    Abstract: A photovoltaic module is presented, which may include a photovoltaic panel and a converter circuit having a primary input connected to the photovoltaic panel and a secondary output galvanically isolated from the primary input. The primary input may be connectible to multiple input terminals within a junction box and at least one of the input terminals may be electrically connected to a ground. The photovoltaic module may include multiple interconnected photovoltaic cells connected electrically to multiple connectors (for example bus-bars). The photovoltaic module may include input terminals operable for connecting to the connectors and an isolated converter circuit. The isolated converter circuit may include a primary input connected to the input terminals and a secondary output galvanically isolated from the primary input.

    System and Methods for Regulating Connections of Loads to a Network

    公开(公告)号:US20250125617A1

    公开(公告)日:2025-04-17

    申请号:US18999674

    申请日:2024-12-23

    Abstract: A system includes a central controller for determining at least one parameter for a load connector of a load. The system also includes a central transceiver for transmitting a signal relating to the least one parameter of the load connector. The load connector comprises input terminals for connecting to power lines of a power distribution network, output terminals for connecting to the load, a switch for connecting/disconnecting the input terminals to/from the output terminals, a connector transceiver for receiving the signal, a voltage sensor for measuring a voltage across the input terminals, and a connector controller. The connector controller may determine a voltage disconnect threshold for the load connector based on the at least one parameter. The connector controller may control the switch to connect the output terminals to the input terminals based on a voltage measurement and the voltage disconnect threshold.

    Energy Harvesting and Electrical Power Generation

    公开(公告)号:US20250119092A1

    公开(公告)日:2025-04-10

    申请号:US18985443

    申请日:2024-12-18

    Abstract: An apparatus for harvesting energy, such as solar, wind, wave, thermal, and the like, including a solar panel and a duct supporting the solar panel at an operational angle. The duct comprises a bottom shroud and side shrouds, therein forming a large aperture, a small aperture, and an oblique frustum shaped cavity. The oblique frustum shaped cavity is configured to direct a flow of fluid from the large aperture to the small aperture. A flow energy generator, such as a turbine, located at the small aperture is configured to collect flow energy. Temperature differences between the solar panel and the environment may be used to harvest thermal energy with a thermoelectric generator. Fluid flow under the solar panel may decrease the panel temperature and increase the efficiency. Generators may be operated in reverse to lower the solar panel temperature and increase efficiency.

    Solar Panel Arrangement
    9.
    发明申请

    公开(公告)号:US20250107249A1

    公开(公告)日:2025-03-27

    申请号:US18973236

    申请日:2024-12-09

    Inventor: Roy Shkoury

    Abstract: Apparatus, systems, and methods for designing photovoltaic panels are described herein. The photovoltaic panels are composed substrings of photovoltaic cells. The substrings of photovoltaic cells may be oriented in a horizontal fashion with respect to a layout of the photovoltaic panels. In the event of snow coverage, partial shading, mutual shading, and so forth, orienting the substrings of the photovoltaic cells in this manner enables those substrings which are disposed higher up in the photovoltaic panel to resume operation even while those substrings which are disposed lower down in the photovoltaic panel remain covered, shaded or otherwise blocked or impeded from functioning. Accordingly, the overall productivity of a photovoltaic panel designed as described herein is increased. Related apparatus, systems, and methods are also described.

    Method and Apparatus for Power Conversion

    公开(公告)号:US20250096686A1

    公开(公告)日:2025-03-20

    申请号:US18966727

    申请日:2024-12-03

    Abstract: Systems, apparatuses, and methods are described for power conversion. The power conversion may be done by a plurality of power devices with different configurations. For example, the plurality of power devices may include one or more converters with an upside-up buck configuration and one or more converters with an upside-down buck configuration. The power conversion may be done by one or more power devices that may be configurable between different modes of configuration. For example, one or more power converters may be configured in either an upside-up buck configuration mode or an upside-down buck configuration mode. The selection of a certain mode of configuration of the converter may be permanent or non-permanent.

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