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    Photovoltaic module
    2.
    发明授权
    Photovoltaic module 有权

    公开(公告)号：US11005267B2

    公开(公告)日：2021-05-11

    申请号：US16450448

    申请日：2019-06-24

    申请人： LG ELECTRONICS INC.

    发明人： Dongho Han ,  Giyob Park ,  Myonghwan Kim ,  Yunsu Bae

    IPC分类号： H02J3/38 ,  H02M3/335 ,  H02S40/32 ,  H02S40/34 ,  H01L31/02 ,  H01L31/048 ,  H02J3/46 ,  H02S50/00

    摘要： A photovoltaic module includes a solar cell module including multiple solar cells, and first and second conductive lines connected respectively to first and second solar cells among the solar cells, and a junction box attached to the solar cell module. The junction box includes a power conversion unit including a capacitor unit located between the first and second conductive lines, a converter unit to change the level of a DC voltage at opposite ends of the capacitor unit and to output the DC voltage, and a controller to control the converter unit. When shading occurs in some of the solar cells, the power conversion unit supplies a second current, the level of which is lower than the level of a first current supplied before shading occurs, whereby the possibility of generation of a hot spot may be reduced despite the absence of bypass diodes when shading occurs.

    Photovoltaic module
    5.
    发明授权
    Photovoltaic module 有权

    公开(公告)号：US11133776B2

    公开(公告)日：2021-09-28

    申请号：US16138429

    申请日：2018-09-21

    申请人： LG ELECTRONICS INC.

    发明人： Giyob Park ,  Myonghwan Kim ,  Byoungsu Yoon ,  Youngbok Jung ,  Kyungsoo Jung

    IPC分类号： H02S40/32 ,  H02S40/34 ,  H02S40/38 ,  H01L31/05 ,  H02M7/48 ,  H02J3/38 ,  H02M1/00 ,  H02M7/44

    摘要： Discussed is a photovoltaic module including: a solar cell module including a plurality of solar cells; a converter to convert a level of first direct current (DC) power input from the solar cell module, and to output second DC power; an inverter to convert the second DC power supplied from the converter into alternating current (AC) power; and a controller to control the converter and the inverter, wherein the converter comprises: a full-bridge switching part to switch the first DC power; a transformer having an input side connected to an output terminal of the full-bridge switching part; and a half-bridge switching part connected to an output side of the transformer, wherein the controller changes a switching frequency of the full-bridge switching part and the half-bridge switching part in a first section of a waveform.

    Photovoltaic module
    6.
    发明授权
    Photovoltaic module 有权

    公开(公告)号：US10381839B2

    公开(公告)日：2019-08-13

    申请号：US15459350

    申请日：2017-03-15

    申请人： LG ELECTRONICS INC.

    发明人： Dongho Han ,  Giyob Park ,  Myonghwan Kim ,  Yunsu Bae

    IPC分类号： H02J3/38 ,  H02J3/46 ,  H01L31/02 ,  H02M3/335 ,  H02S40/32 ,  H02S40/34 ,  H02S50/00 ,  H01L31/048

    摘要： A photovoltaic module includes a solar cell module including multiple solar cells, and first and second conductive lines connected respectively to first and second solar cells among the solar cells, and a junction box attached to the solar cell module. The junction box includes a power conversion unit including a capacitor unit located between the first and second conductive lines, a converter unit to change the level of a DC voltage at opposite ends of the capacitor unit and to output the DC voltage, and a controller to control the converter unit. When shading occurs in some of the solar cells, the power conversion unit supplies a second current, the level of which is lower than the level of a first current supplied before shading occurs, whereby the possibility of generation of a hot spot may be reduced despite the absence of bypass diodes when shading occurs.