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公开(公告)号：US20240297504A1
公开(公告)日：2024-09-05
申请号：US18391723
申请日：2023-12-21
Applicant: Asahi Kasei Microdevices Corporation
Inventor： Teppei HAYASHI
CPC classification number: H02J3/38 , H02J3/12 , H02J50/001 , H02M3/07 , H02J2300/26
Abstract: There is provided a control circuit which controls a DC-DC converter which boosts an output voltage of an input source and outputs the output voltage which has been boosted, in which the DC-DC converter has a boost coil, and a capacitor, and the control circuit includes: an input terminal into which the output voltage is input; a first transistor arranged between the input terminal, and the boost coil and the capacitor; and a switch activation unit which boosts the output voltage, and applies the output voltage, which has been boosted, to a control terminal of the first transistor.
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公开(公告)号：US20240280617A1
公开(公告)日：2024-08-22
申请号：US18568033
申请日：2022-06-09
Applicant: Hitachi, Ltd.
Inventor： Tomoya YAMASAKI , Noriyuki TAKESHITA , Hiroshi YUNOUE , Shinpei OHYAMA
IPC: G01R21/133 , G06Q50/06 , H02J3/12
CPC classification number: G01R21/133 , G06Q50/06 , H02J3/12
Abstract: An aggregator system outputting a control instruction relating to electric power to a consumer consuming electric power, in accordance with a variation of a power generation amount of a power supply company, the aggregator system predicting adjustment power that is an adjustable amount of received power according to each of facilities of the consumer and outputting a control instruction for adjusting received power to each of the facilities on the basis of the predicted adjustment power of each of the facilities and a DR instruction that is a demand/supply adjustment instruction for the electric power from the power supply company.
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公开(公告)号：US20240235208A1
公开(公告)日：2024-07-11
申请号：US18561410
申请日：2022-06-30
Applicant: IHI Corporation
Inventor： Misako KONISHI
CPC classification number: H02J3/38 , H02J3/004 , H02J3/12 , H02S50/00 , H02J3/32 , H02J7/35 , H02J2300/24
Abstract: A power management system that controls a power generation facility including a photovoltaic power generation device, the power management system including: a control unit that controls load power based on a predicted generated power assuming that the generated power by the power generation facility is the predicted generated power based on a power generation capacity of the power generation facility; and an actual power generation amount information acquisition unit serving as a power generation information acquisition unit that acquires actual generated power generated by the power generation facility. The control unit temporarily changes the control method when detecting that the difference between the predicted generated power and the actual generated power is larger than a predetermined value.
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公开(公告)号：US20240186791A1
公开(公告)日：2024-06-06
申请号：US18523788
申请日：2023-11-29
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haidong Chen , Yafeng Wang , Yansong Lu , Linfeng Zhong , Changyong Wang
IPC: H02J3/12 , H01M10/44 , H01M10/46 , H01M50/204 , H01M50/296 , H02J7/00 , H02M1/00 , H02M3/335
CPC classification number: H02J3/12 , H01M10/441 , H01M10/46 , H01M50/204 , H01M50/296 , H02J7/0013 , H02J7/0047 , H02M1/0067 , H02M3/33584 , H02J2207/20
Abstract: An energy storage system includes a DC bus, an energy storage converter, n first battery racks and m energy storage units. The DC bus has a positive bus and a negative bus. The energy storage converter is electrically connected to the DC bus. Each of the n first battery racks is electrically connected between the positive bus and the negative bus directly. Each of the m energy storage units includes a second battery rack and a DC/DC converter. The DC/DC converter is electrically connected between the corresponding second battery rack and the DC bus. The DC/DC converter performs electric energy conversion between the corresponding second battery rack and the DC bus.
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5.发明公开公开(公告)号：US20240146060A1
公开(公告)日：2024-05-02
申请号：US18494927
申请日：2023-10-26
Applicant: BluWave Inc.
Inventor： Alexander LINCHIEH , Amir LOTFI , Devashish PAUL , Thomas TRIPLET
CPC classification number: H02J3/12 , B60L53/63 , H02J3/003 , H02J7/00712
Abstract: Methods and systems are provided for controlling the charging of electric vehicles (EVs) and other assets based on power flow information of a power grid. The strategic control of charging of the assets, by way of generated charging control information, contributes to an effort to respect technical constraints of the power system, thereby minimizing violations of the technical constraints, and thus minimizing damage to the power grid infrastructure. New power flow information for a subsequent time period may then be generated based on the at least part of the charging control information, and this new power flow information may then in turn be used to generate new charging control information for the subsequent time period. In addition, a method contribute to the generation of a solution to an optimal power flow (OPF) problem in the power grid based on strategic controlling of the charging of a plurality of assets in the power system.
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Patent Agency Ranking
公开(公告)号：US20240118324A1
公开(公告)日：2024-04-11
申请号：US18257772
申请日：2021-09-27
Inventor： Lei WU
CPC classification number: G01R19/2513 , H02J3/12 , H02J3/38 , H02J2300/28
Abstract: The present disclosure provides a wind turbine, a converter, and a low-voltage ride-through detection method and device. The low-voltage ride-through detection method includes: determining an adjustment value of a preset parameter of a power grid on the basis of a power grid voltage, wherein the preset parameter includes at least one of a current, a current frequency and a power factor angle; adjusting the preset parameter of the power grid on the basis of the adjustment value; and detecting, on the basis of a power grid voltage after the preset parameter of the power grid is adjusted, whether the power grid meets a low-voltage ride-through condition. Therefore, a power grid fault of the wind turbine in a weak grid can be accurately identified, so as to enter a low-voltage ride-through state, thereby avoiding system instability in the process of a power grid fault ride-through in the weak grid.
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7.发明授权公开(公告)号：US11929616B2
公开(公告)日：2024-03-12
申请号：US18312108
申请日：2023-05-04
Applicant: PEAK POWER, INC.
Inventor： Benson Pei Sen Hu
CPC classification number: H02J3/12 , G05B13/0265 , G05B13/042 , G05B13/048 , H02J13/00006
Abstract: Responding to grid events is provided. The system determines, based on an event, to modify an electrical load of a site. The system selects a parameter for the site to adjust to modify the electrical load. The system identifies a script constructed from previously processed interactions between a human-machine interface of the building management system to adjust the parameter for the site. The system establishes a communication session with a remote access agent executed by a computing device of the site to invoke the building management system of the site. The system generates a sequence of commands defined by the script to adjust the one or more parameters for the site. The system transmits the sequence of commands to cause the remote access agent to execute the sequence of commands on the human-machine interface of the building management system to modify the electrical load of the site.
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公开(公告)号：US11721977B2
公开(公告)日：2023-08-08
申请号：US17579496
申请日：2022-01-19
Applicant: Landis+Gyr Innovations, Inc.
Inventor： Ian Jackson Davis
CPC classification number: H02J3/12 , G05B13/0265 , H02J13/00002
Abstract: A system for discovering the topology and phase of an electrical power distribution system is provided. For example, a group of meters connected to an electrical power distribution system can process sensor data obtained at the meters and generate descriptors based on the processed data and transmit the descriptors to a headend system. The headend system can, after receiving the descriptors from the various meters in the system, group these meters to generate a grouping by applying clustering algorithms to the descriptors of these meters. The headend system can further compare the current grouping with past groupings to determine a confidence level of the current grouping and assign a segment identifier or a phase identifier or both to one or more of the meters based on the confidence level.
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公开(公告)号：US11705730B2
公开(公告)日：2023-07-18
申请号：US15474715
申请日：2017-03-30
Applicant: VERSITECH LIMITED
Inventor： Shu Yuen Ron Hui , Chi Kwan Lee , Felix Fulih Wu
CPC classification number: H02J3/18 , H02J3/12 , H02J3/16 , H02J3/1814 , H02J3/1842 , H02J3/241 , Y02E40/30
Abstract: The present invention provides a power control circuit connectable to a load adapted to receive a power supply, the power control circuit adapted to absorb power from the power supply and adapted to deliver power to the power supply to stabilize at least one electrical parameter of the power supply. The present invention also provides an associated method of stabilizing at least one electrical parameter of a power supply connectable to a load, the method including absorbing power from the power supply or delivering power to the power supply. The at least one electrical parameter of the power supply includes parameters such as voltage and frequency.
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公开(公告)号：US20230195147A1
公开(公告)日：2023-06-22
申请号：US18071975
申请日：2022-11-30
Applicant: LEXMARK INTERNATIONAL, INC.
Inventor： RUSSELL EDWARD LUCAS , WILLIAM ALAN MENK, JR. , JERRY WAYNE SMITH , ERYK ZAGORSKI
CPC classification number: G05D23/24 , A45D1/28 , H02J3/12 , H05B1/0255 , A45D2001/004
Abstract: Methods and apparatus include a hair iron having a controller and a heater between first and second arms movable relative to each other between open and closed positions. The controller connects or not the heater to a line voltage to heat hair when placed between the arms during use. A proportional-integral-derivative (PID) controller communicates with a thermistor measuring a current temperature of the heater and makes requests of the controller to operate the heater at a setpoint temperature. In various embodiments, the heater heats to full power during warm-up and operates thereafter at lower temperatures based on a reading of the line voltage and a time to adjust the current temperature to the desired setpoint temperature.
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