Systems and Methods to Increase the Reliability and the Service Life Time of Photovoltaic (PV) Modules

    公开(公告)号:US20230396070A1

    公开(公告)日:2023-12-07

    申请号:US18451385

    申请日:2023-08-17

    CPC classification number: H02J3/381 H02J2300/26 H02J2300/24 H02J3/388

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Systems and Methods to Increase the Reliability and the Service Life Time of Photovoltaic (PV) Modules

    公开(公告)号:US20220131384A1

    公开(公告)日:2022-04-28

    申请号:US17570861

    申请日:2022-01-07

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Power Conversion Device and Apparatus
    3.
    发明公开

    公开(公告)号:US20240146171A1

    公开(公告)日:2024-05-02

    申请号:US18490892

    申请日:2023-10-20

    CPC classification number: H02M1/0003 H02M7/487

    Abstract: A power converter employing a plurality of parallel high-frequency switching legs, and a low-frequency switching leg, is disclosed. A load may be coupled between the high-frequency switching legs and the low-frequency switching leg. A number of levels of a power waveform produced by the power converter may be higher than the number of levels of the high-frequency switching legs. The low-frequency switching leg may employ switches which may have low switching frequency characteristics, low conduction losses, and may be less expensive.

    Systems and methods to increase the reliability and the service life time of photovoltaic (PV) modules

    公开(公告)号:US12142926B2

    公开(公告)日:2024-11-12

    申请号:US18451385

    申请日:2023-08-17

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Systems and methods to increase the reliability and the service life time of photovoltaic (PV) modules

    公开(公告)号:US11258261B2

    公开(公告)日:2022-02-22

    申请号:US16681884

    申请日:2019-11-13

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Systems and Methods to Increase the Reliability and the Service Life Time of Photovoltaic (PV) Modules

    公开(公告)号:US20250015599A1

    公开(公告)日:2025-01-09

    申请号:US18896074

    申请日:2024-09-25

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Systems and methods to increase the reliability and the service life time of photovoltaic (PV) modules

    公开(公告)号:US11764581B2

    公开(公告)日:2023-09-19

    申请号:US17570861

    申请日:2022-01-07

    CPC classification number: H02J3/381 H02J3/388 H02J2300/24 H02J2300/26

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

    Systems and Methods to Increase the Reliability and the Service Life Time of Photovoltaic (PV) Modules

    公开(公告)号:US20200083715A1

    公开(公告)日:2020-03-12

    申请号:US16681884

    申请日:2019-11-13

    Abstract: A method may include: applying a first voltage on at least one first terminal of a first direct current (DC) bus electrically connected to a power source, obtaining at least one indication that discharge of a second voltage related to the first voltage should be performed, and discharging the second voltage by electrically connecting at least one second terminal of a second DC bus to a ground in response to the at least one indication. Another method may include: injecting a current at at least one terminal of a direct current (DC) bus that is electrically connected to a power source, simultaneous to injecting the current, measuring an insulation relative to ground, obtaining an electrical parameter related to the power source, and, in response to the electrical parameter, maintaining the current injected at the terminal of the DC bus without ceasing the measuring of the insulation relative to a ground.

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