公开(公告)号：US20230318294A1

公开(公告)日：2023-10-05

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.

公开(公告)号：US11749991B1

公开(公告)日：2023-09-05

申请号：US18066970

申请日：2022-12-15

Applicant: FREEWIRE TECHNOLOGIES, INC.

Inventor： Nicholas Seroff ,  Tabish Shibly

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

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：US11710197B2

公开(公告)日：2023-07-25

申请号：US16961541

申请日：2018-01-12

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Edward A. Fowler

IPC: F04D13/06 ,  G05B19/042 ,  H02J13/00 ,  G07C3/00 ,  G06Q50/06 ,  F04D13/14 ,  F04D15/00 ,  H02J3/00 ,  F17D5/00

CPC classification number: G06Q50/06 ,  F04D13/06 ,  F04D13/14 ,  F04D15/0088 ,  G05B19/042 ,  H02J3/007 ,  H02J3/0075 ,  H02J13/00002 ,  H02J13/00034 ,  F17D5/00 ,  G05B2219/2639 ,  G07C3/00 ,  H02J2203/20

Abstract: A method and controller for controlling electrical activation of elements in a system. A method includes identifying (710) a first element (102) of a system (100) by a control system (600), among a plurality of elements (102, 110, 122) of the system (100), that is to be powered. The method includes determining (712) connected elements (110, 122) of the system (100) by the control system (600). The connected elements (110, 122) are connected to deliver power to the first element (102) directly or indirectly, based on an adjacency matrix (400), and the adjacency matrix (400) identifies connections between each of plurality of elements of the system (100). The method includes identifying (714) at least one of the connected elements (110, 122) to activate by the control system (600), based on the adjacency matrix (400), a health table (500), and the connected elements (110, 122), to deliver power to the first element (102). The method includes activating (716) the at least one of the connected elements (110, 122) by the control system (600), thereby delivering power to the first element (102).

公开(公告)号：US12119651B2

公开(公告)日：2024-10-15

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：US20240332969A1

公开(公告)日：2024-10-03

申请号：US18579946

申请日：2022-07-28

Applicant: Rheem Australia Pty Limited

Inventor： Dean Holland CLIFT ,  Gary ROSENGARTEN ,  Cameron STANLEY ,  Lee KERNICH

IPC: H02J3/00 ,  G05B15/02 ,  G06Q30/0283 ,  G06Q50/06

CPC classification number: H02J3/0075 ,  G05B15/02 ,  G06Q30/0283 ,  G06Q50/06 ,  H02J2310/64

Abstract: Disclosed is a system for connecting an electrical appliance to an electrical grid. The system comprises a switch module and a processing system. The switch module is configured to electrically connect the electrical appliance and the electrical grid. The processing system is configured to compare a current electricity price for the electrical grid to a statistical quantity representing electricity prices for the electrical grid over a period, and, based on the comparison, operate the switch module to control the transfer of electricity between the electrical grid and the electrical appliance. The electricity price at a given time comprises the price set by an operator of the electrical grid to purchase from one or more electrical generators enough electricity to meet an expected demand for electricity from the electrical grid at the given time. Also disclosed is a method for connecting an electrical appliance to an electrical grid. Also disclosed are systems and methods for controlling the transfer of electricity between an energy system and one or more external energy sources.

公开(公告)号：US20240313547A1

公开(公告)日：2024-09-19

申请号：US18599693

申请日：2024-03-08

Applicant: Inductotherm Corp.

Inventor： Satyen N. PRABHU ,  Adam J. WESTERLAND ,  Bradley WINTERS

IPC: H02J3/46 ,  F27B3/08 ,  F27D11/06 ,  F27D17/00 ,  H02J3/00 ,  H02J3/28

CPC classification number: H02J3/46 ,  F27D11/06 ,  F27D17/001 ,  H02J3/001 ,  H02J3/0075 ,  H02J3/28 ,  F27B3/08 ,  H02J2300/26 ,  H02J2300/28 ,  H02J2300/40

Abstract: A renewable energy powered thermal processing system is formed from a renewable energy source operably connected to an inverter via a charge controller. In one embodiment, a solar renewable energy source is operably connected to the inverter via a solar charge controller. The inverter is connected to a renewable energy storage device and further conditions the current for the thermal processing power supply, which then delivers energy to a thermal processing unit. A supplemental renewable energy source, such as wind, may further be operably connected to the inverter via a supplemental charge controller. As such, the thermal processing unit can be powered solely by renewable energy directly or stored renewable energy within the renewable energy storage device to provide a standalone, grid-independent renewable energy powered thermal processing system. Optionally, a grid tie may further selectively connect the system to an external power grid as a backup source of energy.

公开(公告)号：US12074445B1

公开(公告)日：2024-08-27

申请号：US18466292

申请日：2023-09-13

Applicant: 8ME NOVA, LLC

Inventor： Elahesadat Naghib ,  Thomas Buttgenbach

IPC: H02J3/46 ,  G06Q10/04 ,  G06Q10/1093 ,  G06Q50/06 ,  H02J3/00 ,  H02J3/32 ,  H02J3/38

CPC classification number: H02J3/466 ,  G06Q10/04 ,  G06Q10/1093 ,  G06Q50/06 ,  H02J3/003 ,  H02J3/004 ,  H02J3/0075 ,  H02J3/32 ,  H02J3/381 ,  H02J2203/10 ,  H02J2300/24

Abstract: Methods and systems determine an energy delivery schedule for a first renewable energy power plant (REPP) and a second REPP connected to an energy grid at different points of delivery. The method includes forecasting energy production by a first REPP and a second REPP during a time period; identifying one or more possible delivery schedules for the first REPP and the second REPP; forecasting energy demand corresponding to points of delivery at the energy grid to which energy produced by the first REPP and the second REPP are provided; selecting a delivery schedule from the one or more possible delivery schedules for the first REPP and the second REPP; and sending a first control signal to the first REPP and a second control signal to the second REPP to implement the selected delivery schedule at the first REPP and the second REPP.

公开(公告)号：US12062916B2

公开(公告)日：2024-08-13

申请号：US18509069

申请日：2023-11-14

Applicant: BLOOM ENERGY CORPORATION

Inventor： Afshin Majd ,  Prasad Pmsvvsv ,  Carlton Cottuli ,  Chad Pearson ,  Daniel Baynes

IPC: H02J3/38 ,  H01M8/04302 ,  H01M8/04537 ,  H01M8/04694 ,  H02J3/00

CPC classification number: H02J3/38 ,  H01M8/04302 ,  H01M8/04656 ,  H01M8/04694 ,  H02J3/0075 ,  H01M2250/10 ,  H02J2300/30

Abstract: Systems and methods for facilitating a medium voltage microgrid operation to manage critical loads are disclosed. The system includes at least two fuel cell systems that operate in one of at least two operating modes including a grid-forming mode and a grid-following mode, based on an operation of at least two utility feeders of a grid. The system includes a controller that receives values corresponding to electrical parameter(s) from at least two utility circuit breakers and a load circuit breaker, detects availability status of the utility circuit breakers to supply power to corresponding at least two portions of the critical load, and a connection status of the load circuit breaker, based on the values, and facilitates the at least two fuel cell systems to operate in one of the at least two operating modes. Further, the system is scalable, redundant, and reliable, and reliability and redundancy are customizable.

公开(公告)号：US20240258794A1

公开(公告)日：2024-08-01

申请号：US18610316

申请日：2024-03-20

Applicant: Mayur Kamalakar

Inventor： Mayur Kamalakar

IPC: H02J3/00 ,  G06Q50/06 ,  H02J7/00

CPC classification number: H02J3/0075 ,  G06Q50/06 ,  H02J7/00032 ,  H02J7/0047 ,  H02J7/00712 ,  H02J2207/20

Abstract: A system for managing transferring of electrical power includes a power converter and a controller. The power converter is configured for receiving input power from a power source through a first connector, converting the input power to output power using a power conversion information based on the receiving, and supplying the output power to a power storage device through a second connector based on the converting. The power storage device includes an ultra-wideband gap semiconductor material. The supplying of the output power includes charging the power storage device based on the output power and the ultra-wideband gap semiconductor material. The power storage device stores power based on the charging. The controller is communicatively coupled with the power converter. The controller is configured for generating the power conversion information.

公开(公告)号：US20240204521A1

公开(公告)日：2024-06-20

申请号：US18532931

申请日：2023-12-07

Applicant: Casio Computer Co., Ltd.

Inventor： Shuhei UCHIDA ,  Takashi ITO

IPC: H02J3/00 ,  G04C10/02 ,  G04G19/00 ,  G06F1/26 ,  H02J3/46 ,  H02J7/00 ,  H02J7/35 ,  H02J50/00 ,  H02J50/10

CPC classification number: H02J3/0075 ,  G04C10/02 ,  G04G19/00 ,  G06F1/263 ,  H02J3/46 ,  H02J7/0048 ,  H02J7/00712 ,  H02J7/35 ,  H02J50/001 ,  H02J50/10 ,  H01Q1/273 ,  H02J2300/24

Abstract: An electronic device including an antenna which is used for near field communication and converts to electrical power a magnetic field generated when near field communication is performed with an external device, a battery which is chargeable by at least part of the electrical power, and a processor which determines whether or not a predetermined condition has been satisfied, and controls charge of the battery by the part of the electrical power on basis of a result of the determination.