公开(公告)号：US20240291283A1

公开(公告)日：2024-08-29

申请号：US18584765

申请日：2024-02-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Aitang Chen ,  Dili Zhu

IPC: H02J3/46 ,  H02J3/00 ,  H02J3/01

CPC classification number: H02J3/46 ,  H02J3/0075 ,  H02J3/01 ,  H02J2300/26

Abstract: A power conversion apparatus including a first direct current conversion module, a second direct current conversion module, and a control module. The control module is configured to: in response to an output voltage of the first photovoltaic string being greater than an output voltage of the second photovoltaic string and a comparison value between the two output voltages being greater than a first threshold: control a switching transistor in the first direct current conversion module to be turned on or off to decrease the output voltage of the first photovoltaic string and control a switching transistor in the second direct current conversion module to be turned on or off to increase the output voltage of the second photovoltaic string, so that a comparison value between the output voltage of the second photovoltaic string and a bus voltage of the direct current bus is less than a second threshold.

公开(公告)号：US20240059235A1

公开(公告)日：2024-02-22

申请号：US18451257

申请日：2023-08-17

Applicant: THERMO KING LLC

Inventor： Eckardt AUGENSTEIN ,  Isabel COENEN ,  Matthias GORSKI ,  Alexander IGLIZN ,  Vikram MADINENI

IPC: B60R16/03 ,  H02P27/06 ,  H02J7/00 ,  H02J3/00 ,  B60P3/20

CPC classification number: B60R16/03 ,  H02P27/06 ,  H02J7/00712 ,  H02J3/0075 ,  B60P3/20 ,  H02J2207/20

Abstract: The present disclosure relates to an apparatus for supplying electrical power to a transport refrigeration unit. The apparatus comprises: a power converter including a rectifier, a first inverter and a DC link; a power distribution unit electrically coupled to the DC link; and a second inverter with an input for electrically connecting to an electrical generator and an output for electrically connecting to the power distribution unit or the DC link. The DC link is electrically connected to an output of the rectifier and an input of the first inverter. An input of the rectifier is electrically connectable to a power source external to the apparatus. An output of the first inverter is electrically couplable to the transport refrigeration unit. The second inverter is configured to convert an alternating current voltage supplied at the input into a direct current voltage for supply at the output.

公开(公告)号：US20240055857A1

公开(公告)日：2024-02-15

申请号：US17818900

申请日：2022-08-10

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Abdullah U. Sheikh ,  Ammar F. Eithan ,  Mohammad Zarar Mir ,  Noorul Ameen

IPC: H02J3/00

CPC classification number: H02J3/0075 ,  H02J3/003

Abstract: A method may include establishing, over a first virtual network in a first power substation network, a first communication path between a control server and a first intelligent electronic device (IED). The method may further include generating a Parallel Redundancy Protocol (PRP) virtual network in the first power substation network in response to determining that a PRP-based IED is being added to the first power substation network. The method may further include establishing, over the PRP virtual network, a second communication path and a third communication path between the control server and the PRP-based IED. The method may further include transmitting first control data to the first IED over the first communication path and second control data to the PRP-based IED over the second communication path.

公开(公告)号：US20230361576A1

公开(公告)日：2023-11-09

申请号：US18152274

申请日：2023-01-10

Applicant: Tianjin University

Inventor： Xiandong XU ,  Jing LIU ,  Hongjie JIA

IPC: H02J3/46 ,  H02J3/38 ,  H02J3/00

CPC classification number: H02J3/466 ,  H02J3/381 ,  H02J3/0075 ,  H02J2300/28 ,  H02J2203/20 ,  H02J2203/10

Abstract: A wind power accommodation oriented low-carbon operation scheduling method for offshore oil and gas platform energy system. Aiming at uncertainty and fluctuation of wind power, the method constructs a target linear planning model. A target function result of the model is the lowest power synthesis of a gas generator. Constraints of the model include a gas power generation and wind power synergetic ramp flexibility constraint, a gas generating capacity and wind power capacity synergetic flexibility constraint, an operating characteristic constraint of a gas generator set, an operating characteristic constraint of a gas compressor and a grid-connected operating characteristic constraint of a wind generator. The scheduling method can effectively cope with the uncertainty and fluctuation of wind power, so as to reduce carbon emission of the energy system of the offshore oil and gas field.

公开(公告)号：US11725408B2

公开(公告)日：2023-08-15

申请号：US17305084

申请日：2021-06-30

Applicant: John Williams

Inventor： John Williams

IPC: E04H4/12 ,  H02J3/38 ,  H02J3/00 ,  F04B17/03 ,  F04B17/00

CPC classification number: E04H4/129 ,  E04H4/1209 ,  F04B17/006 ,  F04B17/03 ,  H02J3/0075 ,  H02J3/381 ,  H02J2300/24

Abstract: A hybrid solar load controller. The controller determines values to carry out what is referred to herein as “best effort” pumping during sun hours, understand its progress, and then “finish the job” with AC power after sun hours have concluded, while taking fullest advantage of pump affinity when on paid-power pump. In embodiments, the pump can be a water pump for a pool, and a goal can be set as a total volumetric goal. The goal can also be a fill level for a container.

公开(公告)号：US12051389B2

公开(公告)日：2024-07-30

申请号：US18270133

申请日：2021-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Chungwon Song

IPC: G09G5/00 ,  H02J3/00

CPC classification number: G09G5/006 ,  H02J3/0075 ,  G09G2330/021 ,  G09G2370/042 ,  G09G2370/12 ,  G09G2370/22

Abstract: A display device includes a high definition multimedia interface (HDMI) input port to which an HDMI is connected, an HDMI receiver receiving an HDMI signal from a source device through the HDMI connected to the HDMI input port, a voltage sensor for sensing a voltage supplied from the source device, a hot plug detect (HPD) controller for transmitting an HPD signal to the source device when the voltage detected by the voltage sensor is higher than or equal to a predetermined voltage, and an auxiliary power supply for supplying a voltage higher than or equal to the predetermined voltage to the voltage sensor when the voltage is supplied from the source device.

公开(公告)号：US20240227601A9

公开(公告)日：2024-07-11

申请号：US18034304

申请日：2022-10-27

Applicant: FISKER INC.

Inventor： Pranav SANE ,  Ishaan PURANIK ,  Peter WON ,  Ajith WIJENAYAKE ,  Ehsan Abu Rayyan

IPC: B60L53/51 ,  B60L58/12 ,  H02J3/00 ,  H02J3/01 ,  H02J3/38 ,  H02J7/00 ,  H02J7/35

CPC classification number: B60L53/51 ,  B60L58/12 ,  H02J3/0075 ,  H02J3/01 ,  H02J3/38 ,  H02J7/0048 ,  H02J7/00712 ,  H02J7/35 ,  H02J2300/24 ,  H02J2310/48

Abstract: An exemplary aspect of this disclosure relates to a charging system comprising a first battery; a photovoltaic array; a battery management system configured to cause a photovoltaic switchgear to open and close, wherein the high voltage switchgear is configured to receive power from the first battery at the same time the first battery receives power from the photovoltaic array through the photovoltaic switchgear; a junction including the photovoltaic switchgear; and a high voltage switchgear, wherein the first battery is configured to receive power from the photovoltaic array when the photovoltaic switchgear is closed.

公开(公告)号：US20240222971A1

公开(公告)日：2024-07-04

申请号：US18503724

申请日：2023-11-07

Applicant: Veloce Energy, Inc.

Inventor： Jeffery D. WOLFE ,  Michael SCHENCK

IPC: H02J3/00 ,  B60L53/302 ,  B60L53/63 ,  B60L53/67 ,  G06Q50/06 ,  H02J3/32

CPC classification number: H02J3/0075 ,  B60L53/302 ,  B60L53/63 ,  B60L53/67 ,  G06Q50/06 ,  H02J3/32

Abstract: Disclosed herein are systems and methods for power management in an EV charging site. A method may comprise sizing a plurality of electrical feeders. Once the feeders are sized, the site connects a plurality of energy storage systems to the plurality of electrical feeders. Then, the site connects a plurality of electrical loads to the plurality of energy storage systems and to the electrical feeders. Electrical loads of the plurality of electrical loads are interspersed with one or more energy storage systems of the plurality of energy storage systems. Next, for an electrical feeder of the plurality of electrical feeders, the site monitors a current flow at one or more points of connection of the electrical feeder to a load of the plurality of electrical loads. Then, the site provides power from the electrical feeder to the load while maintaining a current or a temperature at the electrical feeder to below a design limit.

公开(公告)号：US11900488B2

公开(公告)日：2024-02-13

申请号：US17525639

申请日：2021-11-12

Applicant: Sacramento Municipal Utility District

Inventor： Nikolas Rechtiene ,  James Frasher ,  Obadiah Bartholomy

IPC: H02J3/32 ,  G06Q50/06 ,  H02J3/00 ,  H02J3/38

CPC classification number: G06Q50/06 ,  H02J3/003 ,  H02J3/007 ,  H02J3/32 ,  H02J3/38 ,  H02J3/388 ,  H02J3/004 ,  H02J3/0075 ,  H02J2300/22 ,  H02J2300/28 ,  H02J2310/14

Abstract: An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.

公开(公告)号：US11811409B2

公开(公告)日：2023-11-07

申请号：US17298235

申请日：2020-01-24

Applicant: Hitachi, Ltd.

Inventor： Yuki Tsujii ,  Shota Omi

IPC: G05B15/02 ,  H03K5/00 ,  H02J3/00 ,  H02J3/06

CPC classification number: H03K5/00006 ,  G05B15/02 ,  H02J3/003 ,  H02J3/007 ,  H02J3/0075 ,  H02J3/06

Abstract: In order to suppress frequency fluctuation caused by a load frequency, an AR calculating section calculates an AR using system frequency deviation and tie-line power flow deviation as inputs. An output distribution ratio determining section determines a ratio of output distribution according to merit order based on the AR calculated by the AR calculating section. An output distributing section determines output distribution according to an output change speed based on the output distribution ratio determined by the output distribution ratio determining section according to the output change speed. An output distributing section determines output distribution according to the merit order based on the output distribution ratio determined by the output distribution ratio determining section according to the merit order. An output distribution instruction value determining section determines an output distribution instruction value to each regulated power source using, as inputs, output distribution values determined by the output distributing sections.