中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

50 records (took 0.021 seconds)

    Power conversion system and an associated method thereof
    23.
    发明授权
    Power conversion system and an associated method thereof 有权

    公开(公告)号：US10811985B2

    公开(公告)日：2020-10-20

    申请号：US16327493

    申请日：2017-08-08

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Prashanth Manikumar Chennamsetty ,  Rien William O'Steen ,  Pradeep Vijayan ,  Arvind Kumar Tiwari

    IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00 ,  H02M1/32

    Abstract: A system including a converter is disclosed. The converter includes a first switch having one or more first controllable switches coupled in parallel across at least one diode. A first controlling unit is operatively coupled to the converter. The first controlling unit is configured to determine a temperature of the one or more first controllable switches. The first controlling unit is further configured to compare the determined temperature of the one or more first controllable switches with a transition temperature at which a first power loss of the one or more first controllable switches is equal to a second power loss of the at least one diode and control a switching state of the one or more first controllable switches based on the comparison of the determined temperature with the transition temperature.

    POWER CONVERSION SYSTEMS AND ASSOCIATED METHODS
    24.
    发明申请
    POWER CONVERSION SYSTEMS AND ASSOCIATED METHODS 审中-公开

    公开(公告)号：US20180175761A1

    公开(公告)日：2018-06-21

    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 ,  H02K7/18

    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.

    Uninterruptible power supply and method of use
    26.
    发明授权
    Uninterruptible power supply and method of use 有权

    公开(公告)号：US09859752B2

    公开(公告)日：2018-01-02

    申请号：US14732215

    申请日：2015-06-05

    Applicant: General Electric Company

    Inventor： Arvind Kumar Tiwari ,  Yashomani Y. Kolhatkar ,  Silvio Colombi

    IPC: H02J9/06 ,  H02J9/08 ,  H02J9/04 ,  H02J11/00

    CPC classification number: H02J9/066 ,  H02J9/04 ,  H02J9/08 ,  H02J11/00

    Abstract: An uninterruptible power supply (UPS) includes a line terminal, a load terminal, a double-conversion circuit coupled in series, and further includes a bypass circuit, and a synchronize circuit. The line terminal couples to a doubly fed induction generator (DFIG). The load terminal couples to a load having a demanded power. The double-conversion circuit regulates grid power from the line terminal to the demanded power at the load terminal. The bypass circuit is coupled between the line terminal and the load terminal, and configured to deliver regulated power generated by the DFIG to the load terminal when the grid power is lost. The synchronize circuit is coupled between the double-conversion circuit and the DFIG, and, when the grid power is lost, the synchronize circuit injects a current through the double-conversion circuit and into the DFIG, synchronizing the regulated power generated by the DFIG to the demanded power.

    UNINTERRUPTIBLE POWER SUPPLY AND METHOD OF USE
    27.
    发明申请
    UNINTERRUPTIBLE POWER SUPPLY AND METHOD OF USE 有权
    不可逆电源及其使用方法

    公开(公告)号：US20160359361A1

    公开(公告)日：2016-12-08

    申请号：US14732215

    申请日：2015-06-05

    Applicant: General Electric Company

    Inventor： Arvind Kumar Tiwari ,  Yashomani Y. Kolhatkar ,  Silvio Colombi

    IPC: H02J9/06 ,  H02J9/08 ,  H02J11/00

    CPC classification number: H02J9/066 ,  H02J9/04 ,  H02J9/08 ,  H02J11/00

    Abstract: An uninterruptible power supply (UPS) includes a line terminal, a load terminal, a double-conversion circuit coupled in series, and further includes a bypass circuit, and a synchronize circuit. The line terminal couples to a doubly fed induction generator (DFIG). The load terminal couples to a load having a demanded power. The double-conversion circuit regulates grid power from the line terminal to the demanded power at the load terminal. The bypass circuit is coupled between the line terminal and the load terminal, and configured to deliver regulated power generated by the DFIG to the load terminal when the grid power is lost. The synchronize circuit is coupled between the double-conversion circuit and the DFIG, and, when the grid power is lost, the synchronize circuit injects a current through the double-conversion circuit and into the DFIG, synchronizing the regulated power generated by the DFIG to the demanded power.

    Abstract translation: 不间断电源（UPS）包括串联耦合的线路终端，负载终端，双转换电路，还包括旁路电路和同步电路。 线路端子耦合到双馈感应发电机（DFIG）。 负载端子耦合到具有所需功率的负载。 双转换电路将线路电源的电网调节到负载端子处的需求功率。 旁路电路耦合在线路终端和负载终端之间，并且被配置为在电网电力丢失时将由DFIG产生的稳压电力传送到负载终端。 同步电路耦合在双转换电路和DFIG之间，当电网电源丢失时，同步电路将通过双转换电路的电流注入DFIG，将DFIG产生的稳压电源同步到 要求的权力。

    HYBRID AC AND DC DISTRIBUTION SYSTEM AND METHOD OF USE
    28.
    发明申请
    HYBRID AC AND DC DISTRIBUTION SYSTEM AND METHOD OF USE 有权
    混合交流和直流分布系统及其使用方法

    公开(公告)号：US20160352105A1

    公开(公告)日：2016-12-01

    申请号：US14725949

    申请日：2015-05-29

    Applicant: General Electric Company

    Inventor： Arvind Kumar Tiwari ,  Yashomani Y. Kolhatkar ,  Neeraj Agrawal

    IPC: H02J5/00 ,  H02M7/04 ,  H02M7/44 ,  H02M3/04

    CPC classification number: H02J5/00 ,  H02J1/102 ,  H02M3/04 ,  H02M7/04 ,  H02M7/44

    Abstract: A hybrid AC and DC distribution system includes a doubly fed induction generator (DFIG), a DC distribution bus, an AC/DC converter, an AC distribution bus, and a DC/AC converter. The DFIG includes a rotor and a stator, and is configured to generate a first AC power at the rotor and a second AC power at the stator. The AC/DC converter is coupled to the rotor and the DC distribution bus. The AC/DC converter converts the first AC power to a first DC power at a first node for delivery to a first load through the DC distribution bus. The DC/AC converter is coupled between the first node and a second node coupled to the stator and the AC distribution bus. The DC/AC converter converts the first DC power to the second AC power at the second node for delivery to a second load through the AC distribution bus.

    Abstract translation: 混合AC和DC分配系统包括双馈感应发电机（DFIG），直流配电总线，AC / DC转换器，AC分配总线和DC / AC转换器。 DFIG包括转子和定子，并且被配置为在转子处产生第一AC电力并且在定子处产生第二AC电力。 AC / DC转换器耦合到转子和直流配电总线。 AC / DC转换器将第一AC电源转换为第一节点处的第一DC电力，以通过DC分配总线传送到第一负载。 DC / AC转换器耦合在第一节点和耦合到定子和AC分配总线的第二节点之间。 DC / AC转换器将第一DC电源转换为第二节点处的第二AC电源，以通过AC分配总线传送到第二负载。

    Hybrid power plant
    29.
    发明授权
    Hybrid power plant 有权

    公开(公告)号：US12015275B2

    公开(公告)日：2024-06-18

    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 ,  G05B19/042 ,  H02J3/00 ,  H02J13/00

    CPC classification number: H02J3/381 ,  G05B19/042 ,  H02J3/004 ,  H02J13/00001 ,  G05B2219/24215 ,  G05B2219/2619 ,  H02J2300/24 ,  H02J2300/28

    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.

    Systems and methods for controlling electrical power systems connected to a power grid
    30.
    发明授权
    Systems and methods for controlling electrical power systems connected to a power grid 有权

    公开(公告)号：US11637515B2

    公开(公告)日：2023-04-25

    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.

Patent Agency Ranking