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公开(公告)号：US20240120737A1
公开(公告)日：2024-04-11
申请号：US18542223
申请日：2023-12-15
CPC分类号： H02J3/0012 , H02B1/26 , H02J13/00002 , H02J13/00036
摘要： Systems and methods for managing power distribution from in-home electrical wiring are disclosed. In one embodiment, a power splitter device includes a an electrical input source connection with a first input line and a second input line for two hot phases of alternating current electricity, a primary electrical output and a secondary electrical output, the primary electrical output having a first primary output line and a second primary output line and the secondary electrical output having a first secondary output line and a second secondary output line, a first, second, third, and fourth current sensor, a first relay and a second relay, and a control logic microprocessor configured to receive measurements of current, determine an overcurrent condition based upon measurements of current over a period of time and disconnect power from the secondary electrical output connection based upon a determined overcurrent condition.
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72.发明公开公开(公告)号：US20240079882A1
公开(公告)日：2024-03-07
申请号：US18507622
申请日：2023-11-13
发明人： Longting Sun , Tiansan Lin , Bo Yu , Yongbing Gao
CPC分类号： H02J3/46 , H02J3/0012 , H02M1/0048 , H02M1/007 , H02M1/008 , H02J2300/24
摘要： This application discloses a photovoltaic power generation system control method, a photovoltaic power generation system, and a switching apparatus, to reduce a loss of the photovoltaic power generation system. The switching apparatus includes: a switching unit, a detection unit, and a controller. The switching unit includes a first output end, a second output end, a first input end connected to each first DC/DC converter in a one-to-one correspondence, and a second input end connected to each second DC/DC converter in a one-to-one correspondence. The first output end is connected to an input end of a first DC/AC converter, and the second output end is connected to an input end of a second DC/AC converter. The detection unit is separately connected to the first DC/AC converter, the second DC/AC converter, a plurality of first DC/DC converters, and a plurality of second DC/DC converters.
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公开(公告)号：US20240079878A1
公开(公告)日：2024-03-07
申请号：US17902792
申请日：2022-09-02
发明人： Jiuping PAN , Reynaldo NUQUI , Liqi ZHANG , Anil KONDABATHINI , HyoJong LEE
CPC分类号： H02J3/28 , H02J3/0012 , H02J3/00125 , H02J13/00022 , H02J13/0004 , H02J2207/50
摘要： Power systems, such as transmission systems, may comprise a series capacitor bank (SCB) to provide series compensation on a power line. The SCB may be electrically inserted into the power line or bypassed according to commands sent by remote systems. Such commands may be compromised in a cyberattack to cause deteriorated conditions and instability in the power system. Thus, according to an embodiment, a protection layer is provided in an SCB station to intercept commands prior to execution, assess the consistency of the commands with a physical state of the power system, and either allow or block the commands based on the assessment, to thereby protect the SCB from cyberattacks.
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公开(公告)号：US20240063641A1
公开(公告)日：2024-02-22
申请号：US18376336
申请日：2023-10-03
CPC分类号： H02J3/38 , C10L3/104 , G06Q20/065 , E21B43/16 , H02J3/40 , H02J3/381 , H02J3/001 , H02J3/0012 , G06Q2220/00 , H02J2300/10
摘要： Systems and methods are provided to mitigate flaring of natural gas. A natural gas processing system may process raw natural gas into a fuel gas stream that may be used to power any number of on-site power generation modules. In turn, the power generation modules may convert the fuel gas stream into an electrical output, which may be employed to power any number of distributed computing units housed within one or more mobile data centers. In certain embodiments, the distributed computing units may be adapted to mine cryptocurrency or perform other distributed computing tasks to generate revenue.
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公开(公告)号：US20240039278A1
公开(公告)日：2024-02-01
申请号：US18484724
申请日：2023-10-11
发明人： Lin LI , Qinwei LIU , Mingwei XU
CPC分类号： H02J3/0012 , H02J3/38 , H02J2300/24
摘要： Any one of a plurality of to-be-grouped devices in a power supply system reports an initial bus voltage to a topology detection device; and reports a current bus voltage after delivering a bus voltage adjustment instruction to a target reference device. The bus voltage adjustment instruction instructs the target reference device to adjust a voltage. The target reference device receives the bus voltage adjustment instruction and adjusts the voltage according to the bus voltage adjustment instruction. The topology detection device obtains the initial bus voltage and the current bus voltage of the plurality of to-be-grouped devices, and determines, based on a difference between the initial bus voltage of the plurality of to-be-grouped devices and the current bus voltage of the plurality of to-be-grouped devices, whether the target reference device and a target to-be-grouped device are connected to a same bus.
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公开(公告)号：US11862976B2
公开(公告)日：2024-01-02
申请号：US16973248
申请日：2019-08-01
申请人： CARRIER CORPORATION
发明人： Stefano Riverso , Marcello Torchio
CPC分类号： H02J3/144 , G01R31/50 , G05B13/026 , H02J3/0012 , H02J3/381 , H02J13/00006 , H02J3/003 , H02J3/004 , H02J2300/24 , H02J2300/28
摘要： Provided are techniques for predictively generating demand response (DR) events based on grid operations and faults, based on optimization and self-learning routines. The techniques include obtaining grid status information, and determining a fault condition based at least in part on the grid status information. The techniques also include generating a DR event based at least in part on the fault condition, and responsive to generating the DR event, transmitting a notification of the DR event.
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公开(公告)号：US20230420937A1
公开(公告)日：2023-12-28
申请号：US18038123
申请日：2021-07-19
申请人： Hitachi, Ltd.
CPC分类号： H02J3/003 , H02J3/004 , H02J3/0012 , H02J3/381 , H02J2203/10 , H02J2203/20 , H02J2300/20
摘要： A power system operation plan creation assistance device and method capable of maintaining or improving system stability or economy includes an optimization target snapshot power flow determination unit that uses one or more pieces of foundational information to determine an optimization target snapshot power flow. The foundational information includes a power generation plan, a total demand prediction, a sales plan, a renewable energy prediction, a work stoppage plan, system data, and a setting value. A system manipulation variable candidate extraction unit uses the one or more pieces of foundational information and the optimization target snapshot power flow to extract a candidate for a variable for a variable manipulating the system. An optimal system configuration calculation unit uses the one or more pieces of foundational information and the system manipulation variable candidate to calculate an optimal system configuration.
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公开(公告)号：US11831158B2
公开(公告)日：2023-11-28
申请号：US16965383
申请日：2018-01-31
发明人： Feng Du , Wei Gang Chen , Zhen Liu , Yue Zhuo
CPC分类号： H02J3/0012 , G05B23/0221 , H02J3/381 , H02J13/00002 , H02J2300/24
摘要： Provided are a grid fault detection method and a device. The grid includes at least one AC power source provided by a public grid. The AC power source is coupled to a plurality of parallel circuits, each including a plurality of parallel branches. The parallel branches are each connected with a load and/or a DC power source. The grid fault detection method having the distributed energy resource includes: selecting a first collection point between the AC power source and the plurality of parallel circuits, and collecting a current value and a current direction of the first collection point; comparing an output current and an input current of the first collection point, and upon the input current being greater than the output current, it is determined that the plurality of parallel circuits are faulty. Accordingly, the plurality of collection points check the fault, so as to trigger a protection device.
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公开(公告)号：US20230369853A1
公开(公告)日：2023-11-16
申请号：US18195889
申请日：2023-05-10
申请人： ABB Schweiz AG
CPC分类号： H02J3/0012 , H02J13/00034
摘要： A technique for a control method and a control system in a substation is provided. The control system includes a substation feeder, an intelligent electronic device, IED, a merging unit, and BUS network connecting the IED and the merging unit. The control method includes providing measurement signals by the substation feeder to the merging unit, transmitting, by the merging unit, measurement data based on the measurement signals of the substation feeder to the IED via the BUS network, identifying, by the IED, a fault condition based on the measurement data, transmitting, by the IED, a conditional control command to the merging unit via the BUS network, determining, by the merging unit, whether the condition of the conditional control command is met, and if so initiating, by the merging unit, the control measure of the substation feeder circuit.
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公开(公告)号：US11817701B2
公开(公告)日：2023-11-14
申请号：US17162196
申请日：2021-01-29
CPC分类号： H02J3/0012 , G05B9/02 , H02J3/388 , H02J13/00002
摘要： A multi-port split-phase power system that includes a control panel including a plurality of breakers, a multi-port converter including an AC port coupled to a second breaker, a DC port coupled to a DC energy source device, and galvanically isolated converters coupled to the AC port and DC port, where the AC port includes a first line, a second line, and a neutral and structured to supply, from the AC energy source device during islanded mode, at least one of 240V to the load device via the first line and the second line or 120V to the load device via the first line and the neutral, and an energy management system including a software for controlling the plurality of breakers, the energy management system structured to perform islanding, reconnection to the utility, and interlocking of the plurality of breakers during the islanding.
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