公开(公告)号：US20250062618A1

公开(公告)日：2025-02-20

申请号：US18760411

申请日：2024-07-01

Applicant: Tata Consultancy Services Limited

Inventor： NILANJAN ROY CHOWDHURY ,  ANUJ KUMAR RAO ,  YOGESH KUMAR BICHPURIYA ,  VENKATESH SARANGAN

IPC: H02J3/24 ,  H02J3/00 ,  H02J3/18 ,  H02J3/38

Abstract: The disclosure relates generally to methods and systems for real-time voltage stabilization of electrical distribution networks with non-linear power flows. Existing real-time voltage control techniques are neither performance nor stability guarantees. The present disclosure proposes an online robust control algorithm, which operates without knowing an exact information of the line-parameters and resolves the voltage stability problem. In the proposed method a load data, a distributed energy resources (DER) data, and a network data of an electrical distribution network is obtained, to obtain a voltage profile at each time-step of the electrical distribution network. Next, line-parameters of the electrical distribution network are predicted using an on-line convex optimization technique and a Gauss-Seidel technique. Then, a stable control signal for each bus that stabilizes a voltage of the electrical distribution network is determined to utilize the stable voltage for the voltage stabilizing of the electrical distribution network in real-time.

公开(公告)号：US12224583B2

公开(公告)日：2025-02-11

申请号：US18197550

申请日：2023-05-15

Applicant: Gridbridge, Inc.

Inventor： Chad Eckhardt ,  Stephen Timothy Watts

IPC: G06F1/30 ,  G05B15/02 ,  G06F1/26 ,  G06Q50/06 ,  H02J3/01 ,  H02J3/02 ,  H02J3/14 ,  H02J3/18 ,  H02J3/38 ,  H02J3/44 ,  H02J13/00 ,  H02M1/42 ,  H02J3/46

Abstract: An electrical distribution grid energy management and router device, or GER device, may be installed in a distribution grid, and route power from power supply to one or more power consumers. The GER devices described herein may provide platforms to add one or more features to a distribution transformer, provide additional features and benefits to both the utility company and end consumer, and may serve as a platform for providing other features, such as multi-layer protection systems for detecting, among other things, one or more fault conditions, and responding to such conditions when detected. A GER device may include sensors to measure electrical properties of incoming and outgoing power, and may include an electrical circuit layer having a central DC power stage.

公开(公告)号：US20250031338A1

公开(公告)日：2025-01-23

申请号：US18780003

申请日：2024-07-22

Applicant: Vince Sigal

Inventor： Vince Sigal

IPC: H05K7/20 ,  H02J3/18 ,  H02J3/24

Abstract: A mobile synchronous condenser system and method uses a container, where a synchronous condenser unit is positioned within the container. A power panel is attached to the container. The synchronous condenser unit is electrically connected to the power panel via at least one cable, where the power panel includes at least one connector to connect to an electrical power network using at least one external cable.

公开(公告)号：US12197240B2

公开(公告)日：2025-01-14

申请号：US17331440

申请日：2021-05-26

Applicant: LANCIUM LLC

Inventor： Michael T. McNamara ,  David J. Henson ,  Raymond E. Cline, Jr.

IPC: G05F1/66 ,  G05B15/02 ,  H02J3/14 ,  H02J3/18

Abstract: Example embodiments for providing computation resource availability based on power-generation signals are presented herein. An embodiment may involve receive information indicative of power-generation economic signals at a first control system and identifying at least one of: (i) a change in a power-generation economic signal that exceeds a predefined threshold change, (ii) a power-generation economic signal that is below a predefined lower threshold limit, or (iii) a power-generation economic signal that is above a predefined upper threshold limit. Responsive to the identification, the embodiment involves performing at least one of: (i) adjusting a rate of power use by a flexible datacenter, and (ii) providing an indication of computation resource availability to a second control system. The flexible datacenter may include a behind-the-meter power input system, a power distribution system, and computing systems configured to receive power from the behind-the-meter power input system via the power distribution system.

公开(公告)号：US12149085B1

公开(公告)日：2024-11-19

申请号：US18352732

申请日：2023-07-14

Applicant: GE INFRASTRUCTURE TECHNOLOGY LLC

Inventor： Markus Andre Offergeld ,  Ajay Koliwad ,  Madhusudan Nandula ,  Neil Cuthbert

IPC: H02J3/36 ,  H02J3/18 ,  H02J3/38

Abstract: A bipole power transmission scheme includes at least a first converter station that is positioned in-use separate from at least a second converter station. The bipole power transmission scheme also includes at least first and second transmission conduits and a first return conduit to in-use interconnect the first converter station with the second converter station and thereby permit the transfer of power between the first and second converter stations.

公开(公告)号：US12136816B2

公开(公告)日：2024-11-05

申请号：US17748535

申请日：2022-05-19

Applicant: DEPARTMENT OF ELECTRICAL ENGINEERING, TSINGHUA UNIVERSITY ,  STATE GRID JIBEI ELECTRIC POWER COMPANY LIMITED

Inventor： Bin Wang ,  Guannan Wang ,  Wenchuan Wu ,  Haitao Liu ,  Hongbin Sun ,  Jun Zhang ,  Qinglai Guo ,  Qi Wang ,  Ziang Liu

IPC: G05B19/042 ,  H02J3/18 ,  H02J3/38

Abstract: An online voltage control method for coordinating multi-type reactive power resources is provided. First, a linearized power flow equation of branch reactive power is established, and an online voltage control model of multi-type reactive power resources including an objective function and constraint conditions is constructed. The constraint conditions includes generator reactive power constraints, reactive power compensator constraints, transformer tap position constraints, a nodal reactive power balance constraint, and slack contained nodal voltage constraints. Then, an optimization result of voltage control is obtained by solving the model. The method makes full use of reactive voltage operation characteristics of a power grid, constructs a practical online solution model for reactive voltage control of large power grid of coordinating multiple reactive power resources, and under a condition of acceptable accuracy loss, takes in account safety of power grid operation, economy of reactive power resource actions and high reliability of online operation.

公开(公告)号：US12113363B2

公开(公告)日：2024-10-08

申请号：US17417060

申请日：2019-11-28

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Manoj Gupta ,  Kouroush Nayebi ,  Janakiraman Sivasankaran

IPC: H02J3/18 ,  G05B15/02 ,  H02J3/00 ,  H02J3/38 ,  H02J13/00

CPC classification number: H02J3/18 ,  G05B15/02 ,  H02J3/004 ,  H02J3/381 ,  H02J13/00002 ,  H02J2300/22 ,  H02J2300/28

Abstract: There is provided a method for operating a renewable energy power plant comprising a plurality of renewable energy generators, the method comprising: calculating a rate of change of reactive power reference level for transitioning between a present reactive power reference level, output by a reactive power controller, and a target reactive power reference level, the target reference level being suitable for normal operation of the renewable energy power plant; and, following a fault on a power network to which the renewable energy power plant is connected, dispatching a control signal for controlling the renewable energy power plant to generate or consume reactive power at the calculated rate of change to transition the reactive power level of the renewable energy power plant to the target reactive power reference level.

公开(公告)号：US12057699B1

公开(公告)日：2024-08-06

申请号：US18570630

申请日：2022-06-07

Applicant: SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD.

Inventor： Mingwei Wu

IPC: H02J3/18

CPC classification number: H02J3/18

Abstract: The present application discloses a power distribution unit (PDU), including three monophase sockets, a star-connected switching circuit, a delta-connected switching circuit and a controller. The controller is configured to correspondingly control the star-connected switching circuit or the delta-connected switching circuit to be turned on according to a current three-phase power wiring requirement of the power distribution unit, so that three phase windings on a secondary side of a distribution transformer are connected according to a target wiring mode conforming to the three-phase power wiring requirement, and three phase power under the target wiring mode is supplied to the three monophase sockets respectively. The PDU of the present disclosure simultaneously supports a delta wiring mode and a star wiring mode, and automatically selects a corresponding wiring mode according to the current three-phase power wiring requirement of the PDU.

公开(公告)号：US11990754B2

公开(公告)日：2024-05-21

申请号：US17470108

申请日：2021-09-09

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： Tatsuro Kozaki

IPC: H02J3/18 ,  H02J3/38 ,  H02J3/40

CPC classification number: H02J3/1885 ,  H02J3/381 ,  H02J3/40 ,  H02J2300/28

Abstract: The present invention provides a power-system stabilization system and a power-system stabilization method, which fundamentally solve the problems of insufficiency and fluctuation in the voltage maintenance capacity and the frequency maintenance capacity. A power-system stabilization system of the present invention comprises a synchronous machine to be field-regulated disposed in an electric power station connected to a power system, a magnetic field regulator for controlling the synchronous machine, and a compensation circuit for correcting a control constant of the magnetic field regulator in accordance with a power-system stability maintaining index that is an index reflecting a renewable energy amount in the power system.

公开(公告)号：US11984722B2

公开(公告)日：2024-05-14

申请号：US17864274

申请日：2022-07-13

Applicant: Apparent Labs, LLC

Inventor： Stefan Matan ,  Fred C. Horton ,  Frank P. Marrone

IPC: G01R11/48 ,  G05F1/66 ,  G06G7/635 ,  H02J3/00 ,  H02J3/01 ,  H02J3/18 ,  H02J3/38 ,  H02J13/00

CPC classification number: H02J13/00028 ,  G01R11/48 ,  G05F1/66 ,  G06G7/635 ,  H02J3/00 ,  H02J3/01 ,  H02J3/1892 ,  H02J3/381 ,  H02J13/00 ,  H02J13/00034 ,  H02J2300/24 ,  H02J2310/12 ,  Y02E40/40 ,  Y02E40/70 ,  Y04S10/12

Abstract: Distributed grid intelligence can enable a virtual power grid. Multiple consumer nodes can have local power sources, and be coupled to a same point of common coupling (PCC). The consumer nodes can be controlled by distributed control nodes at the consumer nodes. The control nodes control the distribution of power from the local power sources based on local power demand of each respective consumer node, and also based on distribution of power from the other respective control node. Thus, consumer nodes can share power generated locally, but operate independently without the need for central management or a central power plant.