公开(公告)号：US11757304B2

公开(公告)日：2023-09-12

申请号：US15321889

申请日：2015-08-03

Applicant: GRIDBRIDGE, INC.

Inventor： Chad Eckhardt ,  Stephen Timothy Watts ,  Joseph E. Anstett, III ,  Mark L. Ventura

IPC: H02J13/00 ,  H02J3/01 ,  H02J3/18 ,  H02M1/42 ,  H02J3/38 ,  G05B15/02 ,  G06Q50/06 ,  H02J3/14

CPC classification number: H02J13/0096 ,  G05B15/02 ,  G06Q50/06 ,  H02J3/01 ,  H02J3/14 ,  H02J3/18 ,  H02J3/381 ,  H02J3/383 ,  H02J3/386 ,  H02J13/0006 ,  H02J13/0079 ,  H02M1/42 ,  H02J3/382 ,  H02J2310/14 ,  H02J2310/64 ,  Y02B70/3225 ,  Y02B70/3266 ,  Y02E40/72 ,  Y04S10/123 ,  Y04S20/222 ,  Y04S20/224 ,  Y04S20/242

Abstract: An electrical distribution site energy management and router device, or SER device, may be installed between a customer premises and a distribution grid, and one or more alternative energy sources and energy storage devices may be electrically connected to the SER device. The SER device may intelligently route power from alternative energy sources to the customer premises, energy storage devices, even to the grid, through various modes of operation. The SER device may efficiently and economically route power during peak electricity price periods and outside of peak periods.

公开(公告)号：US20190237826A1

公开(公告)日：2019-08-01

申请号：US16304871

申请日：2017-03-16

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Takahito IDA ,  Keisuke OGASAWARA

IPC: H01M10/613 ,  H01M10/44 ,  H01M10/48 ,  H01M10/627 ,  H01M10/633 ,  H01M10/6557 ,  H01M10/6563 ,  H02J7/00

CPC classification number: H01M10/613 ,  H01M10/44 ,  H01M10/443 ,  H01M10/48 ,  H01M10/486 ,  H01M10/627 ,  H01M10/633 ,  H01M10/6557 ,  H01M10/6563 ,  H01M2220/10 ,  H02J3/32 ,  H02J3/383 ,  H02J3/386 ,  H02J7/00 ,  H02J7/0029 ,  H02J7/0047 ,  H02J7/0068 ,  H02J2007/005

Abstract: A storage battery cooling control device includes a system power calculator (18) configured to calculate power of an external power source as power information, and a charge/discharge control unit (20) configured to perform charge/discharge control of a storage battery based on the power information, and to perform power control of a cooling device by distributing power to the cooling device within a cooling power threshold, which is determined so that a heat generation increment of the storage battery is equal to or less than a heat exhaust increment of the cooling device calculated from a cooling air flow rate.

公开(公告)号：US20190214927A1

公开(公告)日：2019-07-11

申请号：US16245320

申请日：2019-01-11

Applicant: Senvion GmbH

Inventor： Heinz-Hermann Letas

IPC: H02P9/00 ,  H02P9/10 ,  F03D9/25

CPC classification number: H02P9/008 ,  F03D9/255 ,  H02J3/386 ,  H02P9/006 ,  H02P9/007 ,  H02P9/107 ,  H02P2101/15

Abstract: A method for controlling a wind turbine with a wind rotor (2), a doubly-fed induction generator (1) driven therewith, and a converter (4), which is electrically connected to feed electrical energy into an electrical grid (8) with at least one grid parameter, and having a controller with a memory in which rotation rate parameters are stored, characterized in that at least one variable characteristic curve is determined between at least one of the rotation rate parameters and the at least one grid parameter, the at least one characteristic is stored in the memory, the at least one grid parameter is measured, the grid parameter measurements are fed to the controller, the values of the at least one rotation rate parameter associated with the grid parameter measurements via the at least one characteristic curve are activated.

公开(公告)号：US20190214824A1

公开(公告)日：2019-07-11

申请号：US16357574

申请日：2019-03-19

Applicant: General Electric Company

Inventor： Amol Rajaram KOLWALKAR ,  Somakumar RAMACHANDRAPANICKER ,  Arvind Kumar TIWARI ,  Subbarao Tatikonda

IPC: H02J3/38 ,  H02J7/35

CPC classification number: H02J3/381 ,  H02J3/383 ,  H02J3/386 ,  H02J7/35 ,  H02P9/007 ,  H02P2207/073 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763

Abstract: A power generation system is disclosed. The power generation system includes a doubly-fed induction generator (DFIG) coupled to a variable speed engine and a photo-voltaic (PV) power source. The DFIG includes a generator to generate a first electrical power based at least partially on an operating speed of the variable speed engine. The PV power source may supply a second electrical power to a Direct Current (DC) link between a rotor side converter and a line side converter of the DFIG. The generator and the line side converter are coupled to an electric grid and/or a local electrical load to supply the first electrical power and at least a portion of the second electrical power to the local electrical load.

公开(公告)号：US20190190306A1

公开(公告)日：2019-06-20

申请号：US16155088

申请日：2018-10-09

Applicant: FreeWire Technologies, Inc.

Inventor： Arcady SOSINOV ,  Richard STEELE ,  Carolin FUNK

IPC: H02J7/14 ,  H01L35/02 ,  H02N2/18 ,  H02J3/38 ,  B62D63/06 ,  B60P7/08

CPC classification number: H02J7/14 ,  B60L1/00 ,  B60P7/08 ,  B62D63/06 ,  C25B1/04 ,  C25B9/00 ,  G08C17/00 ,  H01L35/02 ,  H01M8/02 ,  H01M2250/20 ,  H02J3/383 ,  H02J3/386 ,  H02J7/345 ,  H02N2/18

Abstract: One aspect of the present invention pertains to a method of transporting energy storage systems. Another aspect of the present invention pertains to a system for transporting energy storage systems.

公开(公告)号：US20190157865A1

公开(公告)日：2019-05-23

申请号：US16217853

申请日：2018-12-12

Applicant: Gram Power, Inc.

Inventor： Yashraj Khaitan ,  Jacob Dickinson

IPC: H02J3/14 ,  H02J3/38 ,  G05B15/02 ,  H02J3/32 ,  G06F1/26

CPC classification number: H02J3/14 ,  G05B15/02 ,  G06F1/263 ,  H02J3/32 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763 ,  Y02E70/30

Abstract: An intelligent user-side power management device (PMD) that has an optional energy storage unit and can interface with a utility grid or microgrid to eliminate power theft and efficiently provide clean energy to the users of the grid while helping the grid to do smart demand response management, particularly for renewable energy based grids that need to efficiently manage the slack due to the large variability in power generation through these energy sources.

公开(公告)号：US20190036344A1

公开(公告)日：2019-01-31

申请号：US16144697

申请日：2018-09-27

Applicant: Wobben Properties GmbH

Inventor： Alfred BEEKMANN ,  Matthias BARTSCH ,  Marcel KRUSE

IPC: H02J3/38 ,  F03D9/30

CPC classification number: H02J3/386 ,  F03D7/048 ,  F03D9/11 ,  F03D9/257 ,  F03D9/30 ,  H02J3/40 ,  H02J2003/388 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763

Abstract: A method for feeding electrical power into an electrical supply network by means of at least one wind farm respectively connected to the supply network via a network connection point, wherein the supply network is to be operated at a network frequency, and each wind farm has a plurality of wind power installations, comprising the steps of determining whether the electrical supply network is operating, starting the at least one wind farm in a black-start mode for the purpose of producing electrical power for feeding into the supply network if the supply network is not operating, operating the at least one wind farm in black-start operation in which electrical power is fed into the supply network and the supply network is operated thereby, wherein the network frequency is specified by the feeding-in of the electrical power in the black-start mode and/or during black-start operation.

公开(公告)号：US20180355848A1

公开(公告)日：2018-12-13

申请号：US15780733

申请日：2016-11-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mu WEI ,  Martin Ansbjerg KJÆR ,  Kouroush NAYEBI ,  Jesper Sandberg THOMSEN ,  Eik HERBSLEB

IPC: F03D7/02 ,  F03D7/04 ,  G05B19/042 ,  H02J3/38

CPC classification number: F03D7/0284 ,  F03D7/026 ,  F03D7/0272 ,  F03D7/048 ,  F05B2220/706 ,  F05B2270/1033 ,  F05B2270/309 ,  F05B2270/327 ,  F05B2270/335 ,  G05B19/042 ,  G05B2219/2619 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763

Abstract: A method and associated control arrangement are disclosed for controlling a power output of a wind power plant (WPP) according to a predetermined power ramp rate limit, the WPP comprising a plurality of wind turbine generators (WTGs). The method comprises receiving a first signal indicating that a first WTG is in a ready state to begin producing power. The method further comprises, upon determining that, responsive to the received first signal, beginning power production of the first WTG at a predetermined default power ramp rate would cause the power output of the WPP to exceed the power ramp rate limit, controlling power production of the first WTG using at least one of: a first delay, a power ramp rate reference less than the default power ramp rate, and a power reference less than a nominal power output of the first WTG.

公开(公告)号：US20180351358A1

公开(公告)日：2018-12-06

申请号：US15609458

申请日：2017-05-31

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith ,  Govardhan Ganireddy

IPC: H02J3/01

CPC classification number: H02J3/01 ,  H02J3/386 ,  H02M1/12 ,  H02M5/12 ,  H02M5/44

Abstract: An electrical power system connectable to a power grid includes a plurality of electrical power subsystems, each of the plurality of electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. The electrical power system further includes an intermediate power path extending from each of the plurality of electrical power subsystems for providing power from each of the plurality of electrical power subsystems to the power grid. The electrical power system further includes a zig-zag transformer electrically coupling each of the plurality of intermediate power paths to the power grid, the zig-zag transformer including a primary winding and a plurality of secondary windings, each of the plurality of secondary windings connected to one of the plurality of intermediate power paths, and wherein at least one of the plurality of secondary windings is a zig-zag winding.

公开(公告)号：US20180323618A1

公开(公告)日：2018-11-08

申请号：US15587437

申请日：2017-05-05

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Harold Robert Schnetzka ,  John Leo Bollenbecker ,  Govardhan Ganireddy

IPC: H02J3/38 ,  H02M5/458 ,  H02J3/18 ,  H02J3/01

CPC classification number: H02J3/386 ,  H02J3/01 ,  H02J3/18 ,  H02M5/458 ,  H02M2001/0009

Abstract: An electrical power system connectable to a power grid includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. Each of the electrical power subsystems further includes a transformer. The system further includes a subsystem breaker configured with each of the electrical power subsystems, and a cluster power path extending from each subsystem breaker for connecting the cluster of electrical power subsystems to the power grid. The system further includes a reactive power compensation inverter electrically coupled within the electrical power system, the reactive power compensation inverter operable to increase the reactive power level in the electrical current flowing to the power grid.