中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

50 records (took 0.018 seconds)

    System and method for actively controlling output voltage of a wireless power transfer system
    12.
    发明授权
    System and method for actively controlling output voltage of a wireless power transfer system 有权

    公开(公告)号：US11075545B2

    公开(公告)日：2021-07-27

    申请号：US16528306

    申请日：2019-07-31

    Applicant: General Electric Company

    Inventor： Kapil Jha ,  Arun Kumar Raghunathan ,  Arvind Kumar Tiwari ,  Deepak Aravind

    IPC: H02J50/12 ,  H02M3/337 ,  H02M3/335 ,  H02J50/80

    Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit for converting a first DC voltage of an input power to a first AC voltage, a contactless power transfer unit for transmitting the input power having the first AC voltage, and a second converting unit for transmitting the power having a second DC voltage corresponding to the first AC voltage to an electric load. Additionally, the wireless power transfer system includes an active voltage tuning unit for controlling the second DC voltage based on a difference between the second DC voltage and a reference voltage and at least one among a difference between the resonant frequency and the constant operating frequency and a difference between a phase angle of the first AC voltage and a phase angle of an AC current.

    SYSTEMS AND METHODS FOR CONTROLLING WIND CONVERTERS
    14.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING WIND CONVERTERS 有权

    公开(公告)号：US20210131400A1

    公开(公告)日：2021-05-06

    申请号：US16676192

    申请日：2019-11-06

    Applicant: General Electric Company

    Inventor： Lijun He ,  Honggang Wang ,  Alexandre Lagarde ,  Virginie Peron ,  Raphael de Rocca-Serra ,  Arvind Kumar Tiwari ,  Liwei Hao

    IPC: F03D9/25 ,  G01R31/26

    Abstract: A method of operating a wind converter is provided. The method includes receiving a plurality of forecasted datasets. The forecasted datasets include event signals for the wind converter during fast transient operating conditions (OCs) and operational data for the wind converter having a low sampling rate. The method further includes estimating a converter life consumption during normal OCs and a converter life consumption during the fast transient OCs. Further, the method includes computing a total converter life consumption of the wind converter. Moreover, the method includes predicting, using a remaining useful life (RUL) prediction module, an RUL for the wind converter based on the total converter life consumption. The method further includes adjusting operation of the wind converter by adjusting operating variables of the wind converter.

    Power conversion systems and associated methods
    15.
    发明授权
    Power conversion systems and associated methods 有权

    公开(公告)号：US10715065B2

    公开(公告)日：2020-07-14

    申请号：US15835531

    申请日：2017-12-08

    Applicant: General Electric Company

    Inventor： Kapil Jha ,  Arvind Kumar Tiwari ,  Saurabh Shukla ,  Olive Ray

    IPC: H02P9/00 ,  H02M5/458 ,  H02M7/48 ,  H02K7/18 ,  H02M7/49 ,  H02M5/22

    Abstract: A wind power generation system including a doubly fed induction generator (DFIG) of a wind turbine is presented. The DFIG includes a rotor and a stator, a rotor-side conversion unit coupled to the rotor, a direct current (DC) link, and at least one line-side conversion unit coupled to the rotor-side conversion unit via the DC link and coupled to the stator of the DFIG. The at least one line-side conversion unit includes exactly one first converter, high frequency transformers, and second converters, where each of the second converters is coupled to the first converter via a respective high frequency transformer, and inverters, where each of the inverters is coupled to a respective second converter and includes an alternative current (AC) phase terminal.

    DFIG Converter with Active Filter
    17.
    发明申请
    DFIG Converter with Active Filter 审中-公开

    公开(公告)号：US20190312502A1

    公开(公告)日：2019-10-10

    申请号：US15944828

    申请日：2018-04-04

    Applicant: General Electric Company

    Inventor： Govardhan Ganireddy ,  Harold Robert Schnetzka ,  Robert Gregory Wagoner ,  Amy Marlene Ridenour ,  Kapil Jha ,  Yashomani Y. Kolhatkar ,  Arvind Kumar Tiwari

    IPC: H02M1/12 ,  H02P9/00 ,  H02M5/458 ,  F03D9/25

    Abstract: Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, an electrical power system connected to a power grid can include a generator comprising a stator and a rotor, the stator connected to the power grid via a stator power path, and a power converter. The power converter can include a line-side converter coupled to the power grid via a converter power path and a rotor-side converter coupled to a rotor bus of the rotor and the line-side converter via a DC link, the rotor-side converter configured to convert a DC power on the DC link to an AC signal for the rotor bus. The power system can also include an active filter comprising one or more active controlled components, the active filter being coupled in parallel with the rotor-side converter to reduce harmonics of the electrical power system.

    Active voltage regulator systems and methods
    18.
    发明授权
    Active voltage regulator systems and methods 有权

    公开(公告)号：US10027244B2

    公开(公告)日：2018-07-17

    申请号：US15188761

    申请日：2016-06-21

    Applicant: General Electric Company

    Inventor： Yash Veer Singh ,  Arvind Kumar Tiwari ,  Scott Brian Wright ,  Kapil Jha

    IPC: H02M7/06 ,  H02M7/217 ,  G08B21/18 ,  B60R16/02

    Abstract: A power conditioning unit used in an electrical system. The power conditioning unit includes a positive bus and a negative bus that are electrically connected to a direct current load to enable supplying direct current electrical power to the direct current load; and a first phase leg, which includes a first diode electrically connected to the positive bus, a first transistor electrically connected to the negative bus, and a first node between the first diode and the first transistor. The first node is electrically connected to an alternating current power source to enable the first phase leg to receive a first phase of alternating current electrical power from the alternating current power source and the first transistor opens and closes to control flow of the first phase through the first phase leg to facilitate generating the direct current electrical power at a target voltage using the alternating current electrical power.

    Systems and methods for controlling electrical power systems connected to a power grid
    19.
    发明授权
    Systems and methods for controlling electrical power systems connected to a power grid 有权

    公开(公告)号：US11601079B2

    公开(公告)日：2023-03-07

    申请号：US16523432

    申请日：2019-07-26

    Applicant: General Electric Company

    Inventor： Yashomani Y Kolhatkar ,  Jayanti Ganesh ,  Zhuohui Tan ,  Arvind Kumar Tiwari

    IPC: H02P9/00 ,  H02P9/02

    Abstract: The present application relates to a method for controlling a power system connected to a power grid, including: receiving a reactive power instruction and a measured reactive power from a generator; generating a reactive power error signal based on the difference between the reactive power instruction and the measured reactive power; receiving the reactive power error signal; generating a voltage instruction based on reactive power error signal; generating a voltage droop signal based on a reference reactance and a voltage at a point of common coupling; generating a voltage error signal according to at least one of the voltage instruction or the measured terminal voltage of the generator and the voltage droop signal; and producing a reactive current instruction for the converter power path based on the voltage error signal. The present application also discloses a control system for a power system connected to a power grid and a wind farm.

    HYBRID POWER PLANT
    20.
    发明申请
    HYBRID POWER PLANT 有权

    公开(公告)号：US20220029424A1

    公开(公告)日：2022-01-27

    申请号：US17311769

    申请日：2019-12-12

    Applicant: General Electric Company

    Inventor： Rajni Burra ,  Deepak Raj Sagi ,  Arvind Kumar Tiwari

    IPC: H02J3/38 ,  H02J13/00 ,  H02J3/00 ,  G05B19/042

    Abstract: A hybrid power plant including a plurality of power sources and controllers, a hybrid plant controller, and a computing system. The controllers operate the power sources according to operating set points. The hybrid plant controller transmits the operating set points to the controllers. The computing system is coupled to the hybrid plant controller and receives a first set of input parameters from a first subscriber, and carries out a first level of services to which the first subscriber subscribes to determine operating parameters for the first subscriber. The computing system receives a second set of input parameters from a second subscriber and carries out a second level of services to which the second subscriber subscribes to determine operating parameters for the second subscriber. The computing system then computes the operating set points based on aggregate operating parameters for the first and second subscribers.

Patent Agency Ranking