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21.发明授权
公开(公告)号：EP3859760B1
公开(公告)日：2024-06-19
申请号：EP20154715.5
申请日：2020-01-30
CPC分类号： H01F27/322 , H01F27/323 , H01F27/2823 , H01F2027/283820130101 , H01F41/122 , H01F5/06
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公开(公告)号：EP4383302A1
公开(公告)日：2024-06-12
申请号：EP22212204.6
申请日：2022-12-08
申请人： Hitachi Energy Ltd
发明人： Seeger, Martin , Stoller, Patrick
CPC分类号： H01H9/52 , H01H2009/52620130101 , H01H33/7023 , H01H33/905 , H01H2033/90820130101
摘要： The invention relates to a high voltage circuit breaker (1) comprising two contact elements (2) arranged opposite and movable relative to one another along a centre axis (3) of the high-voltage circuit breaker (1), and forming, during a breaking operation, in an arcing region (4) between the two contact elements (2) an arc extinguishable by an arc extinguishing gas; a heating volume (8) and a heating channel (7) connected to the arcing region (4) and configured for dissipating arc extinguishing gas (14) heated by the arc into the heating volume (8); and a cooling structure (11) embedded in the heating volume (8) and configured for cooling the heated arc extinguishing gas (14) flowing into the heating volume (8).
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23.发明公开
公开(公告)号：EP4383023A1
公开(公告)日：2024-06-12
申请号：EP22211372.2
申请日：2022-12-05
申请人： Hitachi Energy Ltd
发明人： Deck, Bernhard , Dan, Andrei-Marian
IPC分类号： G05B19/042 , H04L67/12
CPC分类号： H04L67/12 , G05B19/042
摘要： A control device (20) for at least one electric power system component (11) comprises at least one control circuit (30), configured to be coupled to a communication interface (21) and the at least one electric power system component (11). The at least one control circuit (30) is further configured to receive data from the communication interface (21), set the control device (20) to a local control mode based on the received data if a user of a mobile device is at a first location (16) local to the control device (20), and set the control device (20) to a remote control mode in response to a request of the user of the mobile device from a second location remote to the control device (20). A mobile device configured to interact with the control device (20) is also provided.
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公开(公告)号：EP3607563B1
公开(公告)日：2024-05-29
申请号：EP17904378.1
申请日：2017-04-05
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公开(公告)号：EP4372641A1
公开(公告)日：2024-05-22
申请号：EP22214141.8
申请日：2022-12-16
申请人： Hitachi Energy Ltd
IPC分类号： G06Q10/063 , G06Q50/06 , G06Q50/30
CPC分类号： G06Q10/063 , G06Q50/06 , G06Q50/40
摘要： Conventional optimization models for electric vehicle (EV) charging do not sufficiently account for battery wear. Accordingly, disclosed embodiments utilize a heuristic approach to penalize optimization solutions for deviations of electric vehicles or other flexible loads (e.g., microgrid batteries) from state-of-health (SoH) parameters. For example, the SoH parameters may encourage the optimization model to quickly bring and maintain states of charge for the batteries of the flexible loads within an ideal state-of-charge (SoC) range. This approach biases the optimization model towards a solution that reduces the occurrence of such deviations from SoH parameters, thereby extending the lifetime of the batteries.
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26.发明授权
公开(公告)号：EP4231358B1
公开(公告)日：2024-05-22
申请号：EP22157298.5
申请日：2022-02-17
IPC分类号： H01L29/08 , H01L29/16 , H01L29/167 , H01L29/78 , H01L21/336 , H01L29/24
CPC分类号： H01L29/7802 , H01L29/7813 , H01L29/0856 , H01L29/167 , H01L29/1608 , H01L29/7397 , H01L29/086 , H01L29/66068 , H01L29/0619 , H01L29/0623
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公开(公告)号：EP3694287B1
公开(公告)日：2024-05-22
申请号：EP19155673.7
申请日：2019-02-06
IPC分类号： H04W74/04 , H04W72/0446 , H04W72/12 , H04W84/18 , H04W72/02
CPC分类号： H04W72/02 , H04W72/0446 , H04W74/04 , H04W84/18 , H04W72/20
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公开(公告)号：EP4354346A1
公开(公告)日：2024-04-17
申请号：EP22200674.4
申请日：2022-10-10
申请人： Hitachi Energy Ltd
CPC分类号： G06N3/0455 , G06N3/09 , G06N20/00 , G01R19/2513 , H02J13/00002
摘要： One component of time domain protection in a power system is estimating the location of a fault. In an embodiment, a multi-objective problem is formulated that comprises a non-smoothness penalization function that drives the primary objective function for fault location estimation towards a solution that respects smoothness between the inputs and outputs of a machine-learning model. This technique improves the accuracy, blind zone, and speed of state-of-the-art techniques, in the context of time domain protection, as well as for other regression tasks. In an additional or alternative embodiment that is specific to time domain protection, the multi-objective problem may comprise a phasor-deviation penalization function that drives the primary objective function towards a solution that minimizes deviations in phasor values. The trained machine-learning model may be executed in a line protection system to determine whether or not to trip a circuit breaker of a power line.
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公开(公告)号：EP4354104A1
公开(公告)日：2024-04-17
申请号：EP22201328.6
申请日：2022-10-13
申请人： Hitachi Energy Ltd
CPC分类号： G01K1/143 , G01K1/146 , H01L23/34 , H01L24/72 , H01L2224/4220130101 , H01L2224/7220130101
摘要： According to an embodiment, the electronic device (100) comprises a sensor element (1) for measuring a physical quantity in the electronic device and a contact element (2) which is configured to be mechanically biased. Furthermore, the electronic device comprises a measurement surface (30, 60, 90) at which the physical quantity is to be measured with the help of the sensor element. The sensor element is placed on the measurement surface. The contact element is electrically connected to the sensor element. At least one of the connection between the sensor element and the contact element and the connection between the sensor element and the measurement surface is a dry connection. The contact element is mechanically biased in order to prevent loosening of the at least one dry connection.
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