公开(公告)号：US11720831B2

公开(公告)日：2023-08-08

申请号：US17324733

申请日：2021-05-19

Applicant: The Florida State University Research Foundation, Inc.

Inventor： Richard H. Meeker ,  Md Omar Faruque ,  Juan Ospina ,  Alvi Newaz ,  Emmanuel Collins ,  Griffin Francis ,  Nikhil Gupta

IPC: G06Q10/04 ,  G06Q30/02 ,  G06Q50/06 ,  G05B13/02 ,  G05B13/04 ,  H02J3/38 ,  H02J3/14 ,  H02J3/32 ,  H02J3/48 ,  H02J3/50 ,  G06Q30/0201 ,  H02J3/00 ,  H02J13/00

CPC classification number: G06Q10/04 ,  G05B13/027 ,  G05B13/048 ,  G06Q30/0206 ,  G06Q50/06 ,  H02J3/007 ,  H02J3/0075 ,  H02J3/14 ,  H02J3/32 ,  H02J3/38 ,  H02J3/381 ,  H02J3/48 ,  H02J3/50 ,  H02J3/003 ,  H02J13/00002 ,  H02J2203/20 ,  H02J2300/24 ,  Y04S50/12

Abstract: Devices and methods of allocating distributed energy resources (DERs) to loads connected to a microgrid based on the cost of the DERs are provided. The devices and methods may determine one or more microgrid measurements. The devices and methods may determine one or more real-time electricity prices associated with utility generation sources. The devices and methods may determine one or more forecasts. The devices and methods may determine a cost associated with one or more renewable energy sources within the microgrid. The devices and methods may determine an allocation of the renewable sources to one or more loads in the microgrid.

公开(公告)号：US20240339842A1

公开(公告)日：2024-10-10

申请号：US18419618

申请日：2024-01-23

Applicant: HUANENG LANCANG RIVER HYDROPOWER INC.

Inventor： Ziwei WANG ,  Shuhong YIN ,  Lin HU ,  Wei CHEN ,  Wangdan NI ,  Wei HE ,  Feng HU ,  Chuan CHEN

IPC: H02J3/46 ,  F03B13/00 ,  H02J3/00

CPC classification number: H02J3/46 ,  F03B13/00 ,  H02J3/0075 ,  F05B2220/706

Abstract: A secondary frequency modulation method for a hydropower plant which satisfies positive correlation between a regulation rate and a rated capacity of the hydropower plant, three secondary frequency modulation gain methods are provided, in which feedforward gain regulation and amplification gain regulation call as many hydropower generating units as possible to participate in secondary frequency modulation, and avoid or restrain the problem that the power regulation sensitivity of an active power regulation dead zone of a single hydropower generating unit is weakened; transfer gain regulation transfers the regulation margin of the hydropower generating unit not participating in the secondary frequency modulation to the hydropower generating unit participating in the secondary frequency modulation within the limit of the active power regulation dead zone of a single hydropower generating unit, so that the latter can obtain a larger active power regulation range.

公开(公告)号：US20240275167A1

公开(公告)日：2024-08-15

申请号：US17923947

申请日：2022-05-18

Applicant: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY ,  East China Electric Power Test Research Institute Co., Ltd. ,  Shanghai Jiao Tong University

Inventor： Saiyi Wang ,  Xin Huang ,  Weiguo He ,  Chaoran Fu ,  Haodong Shen ,  Tangyun Xu ,  Jie Chen ,  Xu Wang ,  Shichao Zhou ,  Zhan Xiong ,  Chuanwen Jiang

IPC: H02J3/28 ,  G06Q50/06 ,  H02J3/00 ,  H02J3/38

CPC classification number: H02J3/28 ,  G06Q50/06 ,  H02J3/0075 ,  H02J3/381

Abstract: A resilience enhancement-oriented energy storage control method and system for a distributed generator (DG) in a distribution network. The method includes: determining an objective function including a first sub-objective function and a second sub-objective function; determining an outer-level constraint based on a quantity of configured energy storage systems (ESSs), a quantity of hardened lines, and a rated power and capacity configuration of an ESS; determining a middle-level constraint based on a line failure; determining an inner-level constraint based on node power of a distribution network, a line load capacity, a line power flow, a power output of a unit, a node voltage, climbing of the unit, operation of the ESS, and LS; determining parameters based on the outer-level constraint, the first sub-objective function, the middle-level constraint, the inner-level constraint, and the second sub-objective function; and controlling energy storage of a DG in the distribution network.

公开(公告)号：US20240243577A1

公开(公告)日：2024-07-18

申请号：US18413296

申请日：2024-01-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Koujie DONG ,  Guozhuang BAI ,  Yi CAI ,  Huanmao XIE

IPC: H02J3/00 ,  H02J3/14 ,  H02J3/46

CPC classification number: H02J3/0075 ,  H02J3/144 ,  H02J3/46 ,  H02J2300/24

Abstract: A power conversion device includes a power conversion device includes an auxiliary power supply, a first load, a power conversion circuit, and a controller. When an output voltage of the auxiliary power supply in operation is greater than or equal to a first voltage threshold, the controller controls the first load to be connected to the power conversion device, so that the output voltage of the auxiliary power supply decreases. When the output voltage of the auxiliary power supply is greater than or equal to a second voltage threshold after the first load is connected to the power conversion device, the controller controls the first load to be disconnected from the power conversion device, and controls the output voltage of the auxiliary power supply to be a first target output voltage. The first voltage threshold is less than the second voltage threshold.

公开(公告)号：US20240239200A1

公开(公告)日：2024-07-18

申请号：US18411276

申请日：2024-01-12

Applicant: Winnebago Industries, Inc.

Inventor： Neng Piyabongkarn ,  Stephen Lynn ,  Joe Lindeman ,  Adam Weiland

IPC: B60L1/00 ,  B60L53/22 ,  B60L58/18 ,  H02J3/00 ,  H02J3/02 ,  H02J7/00

CPC classification number: B60L1/006 ,  B60L53/22 ,  B60L58/18 ,  H02J3/0075 ,  H02J3/02 ,  H02J7/00047 ,  H02J2207/20

Abstract: A recreational vehicle includes a body, a chassis electrical system including a first power source, a first port coupled to the first power source and attached to the body such that the first port is accessible from outside the recreational vehicle, a house electrical system including a second power source, a second port coupled to the second power source and attached to the body such that the second port is accessible from outside the recreational vehicle, and a switch assembly electrically coupled between the second port and the second power source and including a controller programmed to switch between charging modes depending on a type of external power source connected to the second port.

公开(公告)号：US20240204522A1

公开(公告)日：2024-06-20

申请号：US18231311

申请日：2023-08-08

Applicant: FREEWIRE TECHNOLOGIES, INC.

Inventor： Nicholas Seroff ,  Tabish Shibly

IPC: H02J3/14 ,  B60L53/14 ,  H02J3/00

CPC classification number: H02J3/144 ,  B60L53/14 ,  H02J3/0075

Abstract: In order to ensure reliable power for charging electric vehicles is available at each charging station at a charging site having multiple charging stations, the systems and methods disclosed herein provide for charge transfers between batteries of such charging stations. A plurality of charging stations at a charging site are connected via local alternating current (AC) circuit in order to transfer energy between the charging stations, such as to balance the energy stored at the respective batteries of the charging stations. Each charging station includes a system controller controlling operation of the charging station and a bidirectional inverter to convert AC input power from a power grid or the local AC circuit to direct current (DC) power for storage in a battery of the charging station and to convert DC power from the battery to AC output power to the local AC circuit, as controlled by the system controller.

公开(公告)号：US20240131945A1

公开(公告)日：2024-04-25

申请号：US18034304

申请日：2022-10-26

Applicant: FISKER INC.

Inventor： Pranav SANE ,  Ishaan PURANIK ,  Peter WON ,  Ajith WIJENAYAKE

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：US11930573B2

公开(公告)日：2024-03-12

申请号：US17960140

申请日：2022-10-05

Applicant: Power Forest Technology Corporation

Inventor： Rong-Jie Tu ,  Hung-Chih Chiu ,  Chien-Lung Lee

IPC: H02M1/00 ,  H02J3/00 ,  H02J3/14 ,  H05B45/3725

CPC classification number: H05B45/3725 ,  H02J3/0075 ,  H02J3/14 ,  H02M1/0009 ,  H02M1/0083

Abstract: A power supply device is provided. The power supply device includes a power converter and a controller. The controller controls the power converter to generate an output power. The controller includes a first detection circuit and a second detection circuit. The first detection circuit detects the output power to obtain a first detection result. The first detection result is a variation of an output current value of the output power. The second detection circuit detects electrical characteristics other than the output current value to obtain a second detection result. The controller determines whether to limit output of the output power according to a relationship between the first detection result and the second detection result.

公开(公告)号：US11862972B2

公开(公告)日：2024-01-02

申请号：US17734546

申请日：2022-05-02

Applicant: DERNetSoft Inc.

Inventor： Alberto Colombo ,  John Rogers

IPC: H02J13/00 ,  H02J3/00 ,  H02J3/38

CPC classification number: H02J13/00004 ,  H02J3/001 ,  H02J3/003 ,  H02J3/004 ,  H02J3/0075 ,  H02J3/381 ,  H02J13/00001 ,  H02J13/00032 ,  H02J2203/10

Abstract: A system and method to join distributed energy resources (DER) to achieve common objectives is provided. The present technology organizes and/or aggregates DERs by routing a (DER) program request for resources to DER contributors capable of responding to and performing the request using a routing system. The system accesses a plurality of DER profiles, each profile associated with a DER contributor capable of contributing a resource to the request, and calculates an initial value for each DER profile based on request attributes and scoring metrics associated with the profile. The system then calculates a fitness metric for each DER profile based on the initial value using a neural network having weights based on the plurality of performance indicators and selects the DER profile and contributors to whom to route the request.

公开(公告)号：US11824358B2

公开(公告)日：2023-11-21

申请号：US18168678

申请日：2023-02-14

Applicant: 741 Solutions LLC

Inventor： James N. Keig

IPC: H02J3/00

CPC classification number: H02J3/0075 ,  H02J3/003 ,  H02J2203/10

Abstract: A transformer economizer automatically disconnects a main electric power transformer from a grid power line during low-load periods, and automatically reconnects the main transformer to the grid power line during high-load periods, to reduce low-power electricity losses incurred by the main transformer. The main transformer is therefore deenergized and a much smaller auxiliary transformer is energized during low-load periods to reduce the low-power electricity losses incurred by the main transformer. The main transformer is then automatically switched back into service during high-load periods, while the auxiliary transformer is switched out of service. This provides long-term energy, cost, and carbon footprint savings by automatically switching the large transformer's loads to a much smaller auxiliary transformer, and therefore proportionally lower losses, during light-load conditions. Transformer inrush currents are ramped and the secondary voltage remains electrically connected at all times to avoid service interruptions and switching disturbances.