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1.发明授权公开(公告)号：US12119778B2
公开(公告)日：2024-10-15
申请号：US17308929
申请日：2021-05-05
Applicant: TIANJIN UNIVERSITY
Inventor： Jiebei Zhu , Zhaoshun Deng , Feng Li
CPC classification number: H02P9/10 , F03D9/25 , H02J3/00 , H02P9/00 , H02P21/00 , F05B2270/32 , H02P2101/15
Abstract: The present invention discloses a FPR system of DFIG, comprising a DC chopper circuit made up of a fully-controlled power switching device and a dump resistor first connected in series and then connected to the positive and negative poles of the DC-link; the fully-controlled power switching device is driven by a power switching device driver; the power switching device driver comprises a first inverting adder, a first PI controller and a PWM modem; the positive and negative input ends of the first inverting adder receive the real-time DC-link voltage signal and its threshold value respectively, and the output end of the first inverting adder is connected to the input end of the first PI controller; the output end of the first PI controller is connected to the input end of the PWM modem; the PWM modem outputs the pulse signal to the control end of the fully-controlled power switching device.
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公开(公告)号：US12119658B2
公开(公告)日：2024-10-15
申请号：US18085621
申请日：2022-12-21
Applicant: DEKA Products Limited Partnership
Inventor： Donald J. Lucas , Christopher L. Barber , Xiaorong Xia
CPC classification number: H02J3/381 , H02J3/18 , H02J3/46 , H02J13/00002 , H02J3/00 , H02J3/38 , H02J3/388 , H02J3/42 , H02J7/35 , H02J2300/24 , H02J2300/28 , H02P21/22
Abstract: A method for determining when a connection of a power system to a grid has been disconnected. The method includes the power system supplying a first amount of reactive power to the grid to which the power system is connected, and the power system determining if there is a frequency change within the grid. This includes if the frequency change does not exceed a predetermined threshold, the power system supplying a second amount of reactive power to the grid, and if the frequency exceeds a predetermined threshold, the power system supplying a first amount of reactive power to the grid.
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3.发明公开公开(公告)号：US20240295893A1
公开(公告)日：2024-09-05
申请号：US18662175
申请日：2024-05-13
Applicant: Causam Enterprises, Inc.
Inventor： Joseph W. Forbes, JR.
IPC: G05F1/66 , G05B11/01 , G05B13/02 , G05B15/02 , G05B19/02 , G05B19/042 , H02J3/00 , H02J3/14 , H02J13/00 , H04L67/10
CPC classification number: G05F1/66 , G05B11/01 , G05B13/02 , G05B13/0255 , G05B15/02 , G05B19/02 , G05B19/042 , H02J3/00 , H02J3/14 , H02J13/00004 , H02J13/00006 , H02J13/00016 , H02J13/00026 , H02J13/00028 , H02J13/00034 , H04L67/10 , G05B2219/40458 , H02J2203/20 , Y02B70/3225 , Y02E60/00 , Y04S20/222 , Y04S40/20
Abstract: Systems, methods, and apparatus for smart electric power grid communication are disclosed in the present invention. At least one grid element transmits at least one registration message over an Internet Protocol (IP)-based network to at least one coordinator. The at least one coordinator registers the at least one grid element upon receipt of the at least one registration message. The at least one grid element automatically and/or autonomously transforms into at least one active grid element for actively functioning in the electric power grid. The at least one coordinator tracks based on revenue grade metrology an amount of power available for the electric power grid or a curtailment power available from the at least one active grid element.
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公开(公告)号：US12073161B2
公开(公告)日：2024-08-27
申请号：US17234230
申请日：2021-04-19
Applicant: University of Tennessee Research Foundation
Inventor： Fei Wang , Leon M. Tolbert , Yiwei Ma , Kevin Louis Tomsovic , Kai Sun , Shuoting Zhang , Jingxin Wang , Bo Liu
CPC classification number: G06F30/367 , G05B13/041 , H02J3/00 , H02J3/36 , H02J3/38 , H02M7/537 , H02J2203/20
Abstract: A system includes a controller that is configured to generate a node control signal and a plurality of switch control signals, a plurality of programmable emulators, each of the plurality of programmable emulators being configurable as one of a plurality of node types responsive to the node control signal, and a plurality of switches that are programmable to couple ones of the plurality of programmable emulators to each other responsive to the plurality of switch control signals.
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公开(公告)号：US20240269938A1
公开(公告)日：2024-08-15
申请号：US18437571
申请日：2024-02-09
Applicant: Alex Spurgeon
Inventor： Alex Spurgeon
CPC classification number: B29C66/95 , B29C65/30 , B29C65/606 , H02J3/00
Abstract: The present disclosure relates to a novel system and methods enabling welding of thermoplastic parts by computation and measured delivery of heat energy required as opposed to computation of power over time without consideration for heat build-up in the delivery system. One application is in plastic staking.
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Patent Agency Ranking
公开(公告)号：US20240238517A1
公开(公告)日：2024-07-18
申请号：US18421331
申请日：2024-01-24
Applicant: Koorosh Mozayeny
Inventor： Koorosh Mozayeny
CPC classification number: A61M5/1723 , G06F1/26 , H02J3/00 , A61M2230/201 , H01R25/003
Abstract: A power strip includes a controller that controls the transfer of electricity to one or more outlet electrical connectors based at least in part on a set of rules and certain status information. Some embodiments provide for apparatuses and methods of controlling the transfer of electricity to one or more outlet electrical connectors of a power strip based on various status information, such as cost, personal preferences, time information, power consumption.
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公开(公告)号：US20240229681A1
公开(公告)日：2024-07-11
申请号：US18403991
申请日：2024-01-04
Applicant: Rondo Energy, Inc.
Inventor： John Setel O'Donnell , Peter Emery von Behrens , Chiaki Treynor , Jeremy Quentin Keller , Matthieu Jonemann , Robert Ratz , Yusef Desjardins Ferhani
IPC: F01K3/02 , B63H1/12 , B63H11/00 , B63H11/12 , B63H11/14 , B63H11/16 , F01K3/08 , F01K3/18 , F01K11/02 , F01K13/02 , F01K15/00 , F01K19/04 , F03D9/18 , F03G6/00 , F22B29/06 , F22B35/10 , F28D20/00 , H01M8/04007 , H01M8/04014 , H01M8/04029 , H02J1/10 , H02J3/00 , H02J3/04 , H02M1/00
CPC classification number: F01K3/02 , B63H11/00 , F01K3/08 , F01K3/186 , F01K13/02 , F01K15/00 , F03G6/071 , F22B29/06 , F22B35/10 , F28D20/00 , H01M8/04014 , H01M8/04029 , H01M8/04037 , H01M8/04052 , H01M8/04074 , H02J1/102 , H02J3/00 , H02J3/04 , H02M1/0003 , H02M1/007 , B63H1/12 , B63H11/12 , B63H11/14 , B63H11/16 , F01K11/02 , F01K19/04 , F03D9/18 , F28D2020/0004 , Y02E60/14
Abstract: An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.
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公开(公告)号：US20240229680A1
公开(公告)日：2024-07-11
申请号：US18403977
申请日：2024-01-04
Applicant: Rondo Energy, Inc.
Inventor： John Setel O'Donnell , Peter Emery von Behrens , Chiaki Treynor , Jeremy Quentin Keller , Matthieu Jonemann , Robert Ratz , Yusef Desjardins Ferhani
IPC: F01K3/02 , B63H1/12 , B63H11/00 , B63H11/12 , B63H11/14 , B63H11/16 , F01K3/08 , F01K3/18 , F01K11/02 , F01K13/02 , F01K15/00 , F01K19/04 , F03D9/18 , F03G6/00 , F22B29/06 , F22B35/10 , F28D20/00 , H01M8/04007 , H01M8/04014 , H01M8/04029 , H02J1/10 , H02J3/00 , H02J3/04 , H02M1/00
CPC classification number: F01K3/02 , B63H11/00 , F01K3/08 , F01K3/186 , F01K13/02 , F01K15/00 , F03G6/071 , F22B29/06 , F22B35/10 , F28D20/00 , H01M8/04014 , H01M8/04029 , H01M8/04037 , H01M8/04052 , H01M8/04074 , H02J1/102 , H02J3/00 , H02J3/04 , H02M1/0003 , H02M1/007 , B63H1/12 , B63H11/12 , B63H11/14 , B63H11/16 , F01K11/02 , F01K19/04 , F03D9/18 , F28D2020/0004 , Y02E60/14
Abstract: An apparatus includes one or more thermal storage blocks that define a radiation chamber and a fluid flow slot positioned above the radiation chamber to define a fluid pathway in a first direction. The apparatus includes a heater element positioned adjacent to the radiation chamber in a second, different direction, wherein the radiation chamber is open on at least one side to the heater element. The apparatus includes a fluid movement system configured to direct a stream of fluid through the fluid pathway in the first direction.
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公开(公告)号：US12032369B2
公开(公告)日：2024-07-09
申请号：US18368389
申请日：2023-09-14
Applicant: Tianjin University
Inventor： Fengzhang Luo , Nan Ge , Qiubo Zou , Tianyu Zhang , Chengshan Wang , Jing Xu , Shengyuan Wang , Xuan Wu , Jiacheng Fo , Xiaoyu Qiu , Kuangyu Kong
IPC: G05B23/02 , G05B19/042 , G06F30/13 , H02J3/00
CPC classification number: G05B23/0283 , G05B19/042 , G06F30/13 , H02J3/00
Abstract: A method of analytical calculation of power supply reliability indexes of a power distribution network includes (A1) acquiring parameters of the power distribution network; (A2) building a reliability calculation model, which includes treating the power distribution network as a node-branch calculation unit and numbering nodes and branches in the power distribution network; (A3) building correlation matrices, and calculating a power supply path matrix and a tie-line matrix, wherein the correlation matrices are a node-branch association matrix, a section switch matrix and a fuse matrix; (A4) deriving a fault incidence matrix through the power supply path matrix, the section switch matrix, the fuse matrix and the tie-line matrix, and calculating the reliability indexes of the nodes and the power distribution network; and (A5) identifying vulnerable links by performing sensitivity analysis through partial derivative transformation for quantifiable parameters or perturbation transformation for unquantifiable parameters on an expression of the reliability indexes.
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公开(公告)号：US20240219870A1
公开(公告)日：2024-07-04
申请号：US18111897
申请日：2023-02-21
Inventor： Kang Yoon LEE , Ju Won OH , Jong Wan JO , Dong Gyun KIM
CPC classification number: G05B13/0265 , H02J3/00 , H02J2300/26
Abstract: Provided are a method and energy harvesting system for extracting maximum power from an input source. When the energy harvesting system includes a converter, a sensing part, an artificial intelligence (AI) calculator, and a resistor part, the method includes: sensing an input voltage and an input current from the input source using the sensing part, converting the input voltage and the input current corresponding to analog values into digital values through an analog-to-digital converter (ADC) block, and transmitting the digital values to the AI calculator; calculating input power on the basis of the digital values using the AI calculator and acquiring an optimal sampling ratio for extracting maximum power on the basis of the input power; controlling a resistor divider ratio on the basis of the optimal sampling ratio to equalize a sampling ratio to the optimal sampling ratio; and performing a regulation operation through the converter.
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