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公开(公告)号：US10784685B2
公开(公告)日：2020-09-22
申请号：US15588878
申请日：2017-05-08
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Saurabh Shukla , Sumeet Singh Thakur , Robert Gregory Wagoner , Anthony Michael Klodowski , Yashomani Kolhatkar
Abstract: An electrical power subsystem includes a generator comprising a generator stator and a generator rotor, and a power converter electrically coupled to the generator. The power converter includes a plurality of rotor-side converters electrically coupled in parallel, a line-side converter, and a regulated DC link electrically coupling the plurality of rotor-side converters and the line-side converter. The electrical power subsystem further includes a stator power path for providing power from the generator stator to the power grid, and a converter power path for providing power from the generator rotor through the power converter to the power grid.
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32.发明申请公开(公告)号：US20200235577A1
公开(公告)日：2020-07-23
申请号：US16647213
申请日：2017-09-15
Applicant: General Electric Company
Inventor： Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Abstract: A method for controlling an electrical power system connected to a power grid includes receiving a reactive power command and a measured reactive power and generating a reactive power error signal based on a difference between the reactive power command and the measured reactive power. Further, the method includes receiving, via a reactive power regulator, the reactive power error signal. Moreover, the method includes generating, via the reactive power regulator, a voltage command based on the error signal. The method also includes generating, via a droop control, a voltage droop signal. In addition, the method includes generating a voltage error signal as a function of the voltage droop signal and at least one of the voltage command or a measured terminal voltage. Thus, the method further includes generating, via a voltage regulator, a reactive current command based on the voltage error signal.
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公开(公告)号：US10396695B2
公开(公告)日：2019-08-27
申请号：US15490079
申请日：2017-04-18
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , John Leo Bollenbecker , Rajni Burra , Robert Gregory Wagoner , Anthony Michael Klodowski
Abstract: The present disclosure is directed to a method for protecting an electrical power system connected to a power grid. The electrical power system includes at least one cluster of electrical power subsystems. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem switch configured with each of the electrical power subsystems and a cluster transformer connecting each cluster of electrical power subsystems to the power grid. A cluster switch is configured with the cluster transformer. A controller is communicatively coupled to each of the plurality of electrical power subsystems. Thus, the controller monitors the electrical power system for faults, and if a fault is detected in the cluster, sends, via one of the subsystem switches or the power converters, a block signal to the cluster switch.
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公开(公告)号：US10340829B2
公开(公告)日：2019-07-02
申请号：US15218121
申请日：2016-07-25
Applicant: General Electric Company
IPC: F03D7/00 , H02P9/48 , F03D7/02 , F03D7/04 , H02K3/28 , H02P9/00 , H02P25/18 , F03D9/25 , H02P101/15 , H02P103/20 , H02P103/10
Abstract: The present subject matter is directed to an electrical power circuit connected to a power grid and method of operating same. The electrical power circuit has a power converter electrically coupled to a generator, such as a doubly-fed induction generator, having a rotor and a stator. Thus, the method includes operating rotor connections of the rotor of the generator in a wye configuration during a first rotor speed operating range. Further, the method includes monitoring a rotor speed of the rotor of the generator. Thus, the method also includes transitioning the rotor connections of the rotor from the wye configuration to a delta configuration if the rotor speed changes to a second rotor speed operating range.
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公开(公告)号：US20180323619A1
公开(公告)日：2018-11-08
申请号：US15588878
申请日：2017-05-08
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Saurabh Shukla , Sumeet Singh Thakur , Robert Gregory Wagoner , Anthony Michael Klodowski , Yashomani Kolhatkar
Abstract: An electrical power subsystem includes a generator comprising a generator stator and a generator rotor, and a power converter electrically coupled to the generator. The power converter includes a plurality of rotor-side converters electrically coupled in parallel, a line-side converter, and a regulated DC link electrically coupling the plurality of rotor-side converters and the line-side converter. The electrical power subsystem further includes a stator power path for providing power from the generator stator to the power grid, and a converter power path for providing power from the generator rotor through the power converter to the power grid.
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Patent Agency Ranking
公开(公告)号：US20180302011A1
公开(公告)日：2018-10-18
申请号：US15490079
申请日：2017-04-18
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , John Leo Bollenbecker , Rajni Burra , Robert Gregory Wagoner , Anthony Michael Klodowski
CPC classification number: H02P9/007 , F03D9/257 , H02H7/062 , H02H7/262 , H02J3/381 , H02J3/386 , H02P29/032 , Y02E10/725 , Y02E10/763
Abstract: The present disclosure is directed to a method for protecting an electrical power system connected to a power grid. The electrical power system includes at least one cluster of electrical power subsystems. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem switch configured with each of the electrical power subsystems and a cluster transformer connecting each cluster of electrical power subsystems to the power grid. A cluster switch is configured with the cluster transformer. A controller is communicatively coupled to each of the plurality of electrical power subsystems. Thus, the controller monitors the electrical power system for faults, and if a fault is detected in the cluster, sends, via one of the subsystem switches or the power converters, a block signal to the cluster switch.
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公开(公告)号：US09973123B2
公开(公告)日：2018-05-15
申请号：US15071327
申请日：2016-03-16
Applicant: General Electric Company
Inventor： Anthony Michael Klodowski
Abstract: The present subject matter is directed to a method for controlling a generator of an electrical power system. The generator includes a generator stator magnetically coupled to a generator rotor. The method includes operating the generator stator of the generator at a first voltage level. Another step includes monitoring, via one or more sensors, at least one of a rotor speed or a rotor voltage of the generator rotor. The method also includes reducing the first voltage level of the generator stator by a predetermined percentage when the rotor speed is within a low speed range or the rotor voltage exceeds a predetermined threshold so as to increase an operating range of the rotor speed. Thus, the increased operating range of the rotor speed increases power production of the electrical power system in the low speed range.
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公开(公告)号：US09828971B2
公开(公告)日：2017-11-28
申请号：US14548570
申请日：2014-11-20
Applicant: General Electric Company
CPC classification number: F03D7/042 , F03D7/0272 , F03D9/255 , H01F29/04 , H02P9/007 , H02P13/06 , Y02E10/723
Abstract: System and methods for optimizing operation of a wind turbine are disclosed. In one aspect, the method also includes determining, via a converter controller of a power converter, a tap position of a tap changer configured between the power grid and a primary winding of a transformer. Another step includes calculating, via the converter controller, a primary voltage of the primary winding as a function of the tap position. The method also includes implementing, via the converter controller, a control action if the primary voltage or a measured secondary voltage of a secondary winding of the transformer is outside of a predetermined voltage range.
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公开(公告)号：US20170272015A1
公开(公告)日：2017-09-21
申请号：US15071327
申请日：2016-03-16
Applicant: General Electric Company
Inventor： Anthony Michael Klodowski
Abstract: The present subject matter is directed to a method for controlling a generator of an electrical power system. The generator includes a generator stator magnetically coupled to a generator rotor. The method includes operating the generator stator of the generator at a first voltage level. Another step includes monitoring, via one or more sensors, at least one of a rotor speed or a rotor voltage of the generator rotor. The method also includes reducing the first voltage level of the generator stator by a predetermined percentage when the rotor speed is within a low speed range or the rotor voltage exceeds a predetermined threshold so as to increase an operating range of the rotor speed. Thus, the increased operating range of the rotor speed increases power production of the electrical power system in the low speed range.
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公开(公告)号：US09605653B2
公开(公告)日：2017-03-28
申请号：US14721100
申请日：2015-05-26
Applicant: General Electric Company
Inventor： Sidney Allen Barker , Anthony Michael Klodowski
CPC classification number: F03D7/00 , F03D7/028 , F03D9/25 , F03D9/255 , F03D17/00 , F05B2270/303 , Y02E10/723
Abstract: The present subject matter is directed to a system and method for operating a wind turbine. The method includes measuring, via one or more temperature sensors, a local temperature of a component of the wind turbine for a predetermined time period. The method also includes determining a power capability of the wind turbine as a function of the local temperature. Another step includes measuring, via one or more sensors, a power output of the wind turbine for the predetermined time period. A further step includes determining a power margin of the wind turbine as a function of the power capability and the measured power output and controlling the power output of the wind turbine based, at least in part, on the power margin.
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