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    POWER SEMICONDUCTOR MODULE
    1.
    发明公开
    POWER SEMICONDUCTOR MODULE 审中-公开

    公开(公告)号：US20240355704A1

    公开(公告)日：2024-10-24

    申请号：US18762854

    申请日：2024-07-03

    申请人： Hitachi Energy Ltd

    发明人： Milad Maleki ,  Harald Beyer ,  Dominik Truessel

    IPC分类号： H01L23/40 ,  H01L23/31

    CPC分类号： H01L23/4006 ,  H01L23/3171 ,  H01L2023/4081 ,  H01L2023/4087

    摘要： A power semiconductor module includes a baseplate that has a first region at a first side located adjacent to an edge of the baseplate and proceeding in a first plane. An encapsulation material covers portions of the baseplate so that the first region of the baseplate is free of the encapsulation material and the baseplate at the edge side adjacent to the first region is at least partly covered by the encapsulation material. The baseplate at its first side is configured for being provided with an electric circuit and the baseplate at its second side is configured for being brought into contact to a heat dissipating element by applying a clamping force with a clamping part to the first region.

    CONTAINER FOR STORING AND TRANSPORTING A DIELECTRIC INSULATION MEDIUM
    2.
    发明公开
    CONTAINER FOR STORING AND TRANSPORTING A DIELECTRIC INSULATION MEDIUM 审中-公开

    公开(公告)号：US20240355502A1

    公开(公告)日：2024-10-24

    申请号：US18579182

    申请日：2022-07-12

    申请人： Hitachi Energy Ltd

    发明人： Michael GATZSCHE ,  Johannes HENGSTLER ,  Max-Steffen CLAESSENS ,  Manuel NAEF ,  Matteo CALAMARI

    IPC分类号： H01B3/56 ,  F17C7/00 ,  F17C13/02

    CPC分类号： H01B3/56 ,  F17C7/00 ,  F17C13/026 ,  F17C2221/03 ,  F17C2250/0439

    摘要： A container for storing and transporting a dielectric insulation medium, including:



    a container interior for containing the dielectric insulation medium, and connecting means for connecting the container to an electrical apparatus of medium or high voltage and filling a housing of the electrical apparatus with the dielectric insulation medium, said dielectric insulation medium being a mixture of
    an organofluorine compound or a mixture of organofluorine compounds as component A, the molar percentage of component A being in a range from 1 to 15 mol %, and
    a carrier gas compound or a mixture of carrier gas compounds other than an organofluorine compound as component B.




    The component B may include nitrogen, the molar percentage of nitrogen in the dielectric insulation medium being at least 65 mol %, and the minimum storage and transportation temperature of the container is equal or higher than the cricondentherm of the insulation medium.

    VEGETATION MANAGEMENT SYSTEM AND VEGETATION MANAGEMENT METHOD
    4.
    发明公开
    VEGETATION MANAGEMENT SYSTEM AND VEGETATION MANAGEMENT METHOD 审中-公开

    公开(公告)号：US20240331072A1

    公开(公告)日：2024-10-03

    申请号：US18684631

    申请日：2022-03-18

    申请人： Hitachi Energy Ltd

    发明人： Yu ZHAO

    IPC分类号： G06Q50/26 ,  G06T7/60 ,  G06V10/764 ,  G06V20/10

    CPC分类号： G06Q50/265 ,  G06T7/60 ,  G06V10/764 ,  G06V20/176 ,  G06V20/188 ,  G06T2207/10032 ,  G06T2207/30184 ,  G06T2207/30188

    摘要： A vegetation management system includes a vegetation classification unit that classifies vegetation photographed in remote sensing data, a long-term change prediction unit that predicts, based on a classification result of the vegetation and the remote sensing data, long-term wide-area fluctuation that is range fluctuation of the vegetation in a predetermined long-term time sequence, a short-term change prediction unit that predicts, based on the classification result of the vegetation and the remote sensing data, short-term wide-area fluctuation that is range fluctuation of the vegetation in a predetermined short-term time sequence, a risk determination unit that determines, based on a prediction result by long-term change prediction unit and a prediction result by short-term change prediction unit, a risk due to contact of the vegetation and a facility, and a visualization unit that visualizes a determination result of the risk.

    Static electrical device assembly comprising heat exchanger system
    5.
    发明授权
    Static electrical device assembly comprising heat exchanger system 有权

    公开(公告)号：US12087486B2

    公开(公告)日：2024-09-10

    申请号：US17417872

    申请日：2019-11-22

    申请人： Hitachi Energy Ltd

    发明人： Esa Virtanen ,  Heli Ojalammi ,  Katja Oinas

    IPC分类号： H01F27/02 ,  F28D21/00 ,  F28F27/02 ,  H01F27/40

    CPC分类号： H01F27/025 ,  F28D21/0001 ,  F28F27/02 ,  H01F27/402 ,  H01F2027/406

    摘要： A static electrical device assembly including: a static electrical device; a heat exchanger system including a first heat exchanger adapted for cooling of the static electrical device by transferring heat into ambient air, and a second heat exchanger adapted for recovering heat from the static electrical device; a flow passage adapted to provide a route for air flow between outdoor air and the first heat exchanger; a sensor system adapted to provide temperature information relating to the static electrical device; and a control system (CTRL) adapted to control the heat exchanger system based on information provided by the sensor system. The heat exchanger system further includes a shutter arrangement adapted to adjust a surface area of the flow passage, the control system (CTRL) is adapted to control the shutter arrangement between an open state and an enclosed state.

    Electric transformer assembly, method for determining a thermal state of an electric transformer, and determination device
    6.
    发明授权
    Electric transformer assembly, method for determining a thermal state of an electric transformer, and determination device 有权

    公开(公告)号：US12080461B2

    公开(公告)日：2024-09-03

    申请号：US17844294

    申请日：2022-06-20

    申请人： Hitachi Energy Ltd

    发明人： Stephane Isler ,  Valter Porcellato

    IPC分类号： H01F27/10 ,  G01K7/42 ,  G01R31/62 ,  H01F27/40

    CPC分类号： H01F27/10 ,  G01K7/427 ,  G01R31/62 ,  H01F27/402 ,  H01F2027/406

    摘要： A transformer assembly includes an electric transformer, a temperature sensor system, and a computation unit for determining a thermal state of the electric transformer. The electric transformer includes a cooling device having at least one liquid coolant channel to absorb exhaust heat from the electric transformer, a heat spreader for transferring heat from the liquid coolant to a heat dissipation surface of the heat spreader, and an air blower configured to effect an airstream along the heat dissipation surface. The temperature sensor system includes an entering coolant sensor for providing an entering coolant temperature signal, a leaving coolant sensor for providing a leaving coolant temperature signal, an entering airstream sensor providing an entering airstream temperature signal, and a leaving airstream sensor providing a leaving airstream temperature signal. The computation unit is configured to determine a thermal state of the transformer.

    Reverse conducting insulated gate power semiconductor device having low conduction losses
    7.
    发明授权
    Reverse conducting insulated gate power semiconductor device having low conduction losses 有权

    公开(公告)号：US12068312B2

    公开(公告)日：2024-08-20

    申请号：US17442019

    申请日：2020-03-13

    申请人： Hitachi Energy Ltd

    发明人： Charalampos Papadopoulos ,  Munaf Rahimo ,  Chiara Corvasce

    IPC分类号： H01L27/00 ,  H01L27/07 ,  H01L29/06 ,  H01L29/739 ,  H01L29/861 ,  H01L29/78

    CPC分类号： H01L27/0727 ,  H01L29/0696 ,  H01L29/7397 ,  H01L29/8611 ,  H01L29/7805 ,  H01L29/8613

    摘要： A reverse conducting insulated gate power semiconductor device is provided which comprises a plurality of active unit cells (40) and a pilot diode unit cell (50) comprising a second conductivity type anode region (51) in direct contact with a first main electrode (21) and extending from a first main side (11) to a first depth (d1). Each active unit cell (40) comprises a first conductivity type first source layer (41a) in direct contact with the first main electrode (21), a second conductivity type base layer (42) and a first gate electrode (47a), which is separated from the first source layer (41a) and the second conductivity type base layer (42) by a first gate insulating layer (46a) to form a first field effect transistor structure. A lateral size (w) of the anode region (51) in an orthogonal projection onto a vertical plane perpendicular to the first main side (11) is equal to or less than 1 μm. On a first lateral side surface of the anode region (51) a first insulating layer (52a) is arranged and on an opposing second lateral side surface of the anode region (51) a second insulating layer (52b) is arranged. And a distance between the first insulating layer (52a) and the second insulating layer (52b) is equal to or less than 1 μm, the first insulating layer (52a) extending vertically from the first main side (11) to a second depth (d2), and the second insulating layer (52b) extending vertically from the first main side (11) to a third depth (d3), wherein the first depth (d1) is less than the second depth (d2) and less than the third depth (d3).

    MODULE FOR LARGE SCALE ENERGY STORAGE
    9.
    发明公开
    MODULE FOR LARGE SCALE ENERGY STORAGE 审中-公开

    公开(公告)号：US20240266847A1

    公开(公告)日：2024-08-08

    申请号：US18565973

    申请日：2021-05-31

    申请人： Hitachi Energy Ltd

    发明人： Jean-Philippe HASLER ,  Juergen STEINKE ,  Gunnar INGESTRÖM ,  Jan SVENSSON ,  Lexuan MENG ,  Haofeng BAI ,  Tong WU ,  Theodore SOONG

    IPC分类号： H02J7/00

    CPC分类号： H02J7/00304 ,  H02J7/0016 ,  H02J2207/50

    摘要： A module (100) for use in an energy storage system is provided, including a first terminal (110) and a second terminal (112); a supercapacitor branch (120) including an arrangement (122) of one or more supercapacitors (124), and a resistive bypass branch (130) including at least a first bypass switch (132) and a resistance (134) connected in series. The supercapacitor branch and the resistive bypass branch are connected in parallel between the first terminal and the second terminal. The module may further include a direct bypass branch (140) having a second bypass switch (142), the direct bypass branch being also connected in parallel with the supercapacitor branch (120) between the first and second terminals. A control method of such a module and an energy storage system including several such modules, are also provided.