公开(公告)号：US20190145376A1

公开(公告)日：2019-05-16

申请号：US15810269

申请日：2017-11-13

Applicant: General Electric Company

Inventor： Edward Wayne Hardwicke, JR. ,  Robert Gregory Wagoner ,  Harold Robert Schnetzka ,  Samir Salamah ,  Rajni Kant Burra ,  Vaidhya Nath Venkitanarayanan

IPC: F03D7/02 ,  F03D7/04

Abstract: A control method for dynamically controlling active and reactive power capability of a wind farm includes obtaining one or more real-time operating parameters of each of the wind turbines. The method also includes obtaining one or more system limits of each of the wind turbines. Further, the method includes measuring at least one real-time wind condition at each of the wind turbines. Moreover, the method includes continuously calculating an overall maximum active power capability and an overall maximum reactive power capability for each of the wind turbines as a function of the real-time operating parameters, the system limits, and/or the real-time wind condition. Further, the method includes generating a generator capability curve for each of the wind turbines using the overall maximum active and reactive power capabilities and communicating the generator capability curves to a farm-level controller of the wind farm that can use the curves to maximize the instantaneous power output of the wind farm.

公开(公告)号：US10243352B2

公开(公告)日：2019-03-26

申请号：US15223053

申请日：2016-07-29

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Govardhan Ganireddy ,  Yashomani Kolhatkar

IPC: H02H7/06 ,  F03D7/02 ,  H02P9/00 ,  H02P9/10 ,  H02H7/12

Abstract: The present disclosure is directed to a protection system for a wind turbine power system connected to a power grid. The protection system includes a main brake circuit having at least one brake resistive element and at least one brake switch element, a battery system, and a controller. The brake resistive element is coupled to at least one of a DC link of a power converter of the wind turbine power system, windings of a rotor of the generator, or windings of a stator of a generator of the wind turbine power system via the brake switch element. The battery system is coupled to the generator via a battery switch element. In addition, the controller is configured to disconnect the power converter and the generator from the power grid and connect at least one of the main brake circuit or the battery system to the generator in response to detecting an electromagnetic (EM) torque loss event so as to generate an EM torque.

公开(公告)号：US20190013754A1

公开(公告)日：2019-01-10

申请号：US15642442

申请日：2017-07-06

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Talha Haque ,  Edward Wayne Hardwicke, Jr. ,  David Scott Wilmer

IPC: H02P9/00

Abstract: Systems and methods for allocating reactive power production in a doubly-fed induction generator (DFIG) wind turbine system including a DFIG and a power converter including a line side converter and a rotor side converter are provided. A method can include obtaining a reactive power production requirement, obtaining one or more operating parameters for the DFIG and the line side converter, and determining a priority ratio based at least in part on the one or more operating parameters. The priority ratio can be a ratio of reactive power production between the DFIG and the line side converter. The method can further include controlling the DFIG and the line side converter based at least in part on the reactive power production requirement and the priority ratio such that the combined reactive power production from the DFIG and the line side converter meet the reactive power production requirement.

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

IPC: H02J3/38 ,  H02M5/04

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.

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

IPC: H02P9/00 ,  H02J3/38 ,  H02K7/18 ,  H02H3/10 ,  F03D9/25

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.

公开(公告)号：US20180302010A1

公开(公告)日：2018-10-18

申请号：US15489919

申请日：2017-04-18

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Cornelius Edward Holliday, III

IPC: H02P9/00 ,  H02P3/00 ,  F03D9/25 ,  H02M5/458 ,  H02H7/12

Abstract: Systems and methods for protecting switching devices in a power converter in doubly fed induction generator power systems are provided. A DFIG system can include a DFIG generator and a power converter comprising a line side converter and a rotor side converter connected by a DC bus. Each of the line side converter and rotor side converter can include a plurality of bridge circuits. Each bridge circuit can include a plurality of switching devices. A method can include monitoring, by a control device, a voltage of the DC bus of the power converter. The method can further include implementing, by the control device, a switching device protection measure based at least in part on the voltage of the DC bus of the power converter. The switching device protection measure can be operable to protect the switching devices by operating the switching devices within a safe operating area.

公开(公告)号：US10067175B2

公开(公告)日：2018-09-04

申请号：US14878253

申请日：2015-10-08

Applicant: General Electric Company

Inventor： Juan Diego Ramirez ,  Robert Gregory Wagoner

IPC: G01R31/02 ,  G01R31/40

Abstract: Systems and methods of determining bond wire failures are provided. In particular, data indicative of a first resistance of a first bond wire set associated with a first semiconductor device on a power semiconductor module can be obtained. In addition, data indicative of a second resistance of a second bond wire set associated with a second semiconductor device on the power semiconductor module can be obtained. A bond wire failure can then be determined in the first bond wire set or the second bond wire set based at least in part on the data indicative of the first resistance of the first bond wire set and the data indicative of the second resistance of the second bond wire set.

公开(公告)号：US20180198376A1

公开(公告)日：2018-07-12

申请号：US15399817

申请日：2017-01-06

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Govardhan Ganireddy ,  Saurabh Shukla ,  Ravisekhar Nadimpalli Raju ,  Harold Robert Schnetzka

IPC: H02M5/458 ,  H02M1/084 ,  H02M1/12 ,  H02H7/12 ,  H05K7/20

CPC classification number: H02M5/458 ,  H02H7/1216 ,  H02M1/32 ,  H05K7/20445

Abstract: Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a first voltage. The power generation unit can also include a power converter configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power converter can include one or more silicon carbide MOSFETs and at least one heatsink configured to remove heat from the power converter. The at least one heatsink of the power converter can be electrically connected to a local ground formed by one or more components of the power generation unit.

公开(公告)号：US20180191280A1

公开(公告)日：2018-07-05

申请号：US15399049

申请日：2017-01-05

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Govardhan Ganireddy ,  Saurabh Shukla ,  Rajni Kant Burra ,  Ravisekhar Nadimpalli Raju ,  Rui Zhou ,  Rajib Datta ,  John Leo Bollenbecker

IPC: H02P9/00 ,  F03D9/00 ,  F03D9/25

CPC classification number: H02P9/007 ,  F03D9/25 ,  F03D9/255 ,  H02M3/335 ,  H02M3/33576 ,  H02M3/337 ,  H02M5/4585 ,  H02M2001/0077 ,  Y02E10/725

Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor. The stator is configured to provide a medium voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert a low voltage alternating current power provided by the rotor to a medium voltage multiphase alternating current output power suitable for provision to an electrical grid. The power converter includes a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.

公开(公告)号：US20170102421A1

公开(公告)日：2017-04-13

申请号：US14878253

申请日：2015-10-08

Applicant: General Electric Company

Inventor： Juan Diego Ramirez ,  Robert Gregory Wagoner

IPC: G01R31/02 ,  H02M7/5387

CPC classification number: G01R31/021 ,  G01R31/40

Abstract: Systems and methods of determining bond wire failures are provided. In particular, data indicative of a first resistance of a first bond wire set associated with a first semiconductor device on a power semiconductor module can be obtained. In addition, data indicative of a second resistance of a second bond wire set associated with a second semiconductor device on the power semiconductor module can be obtained. A bond wire failure can then be determined in the first bond wire set or the second bond wire set based at least in part on the data indicative of the first resistance of the first bond wire set and the data indicative of the second resistance of the second bond wire set.