公开(公告)号：US11152787B2

公开(公告)日：2021-10-19

申请号：US16740108

申请日：2020-01-10

Applicant: General Electric Company

Inventor： Arvind Kumar Tiwari ,  Jayanti Navilgone Ganesh ,  Kasi Viswanadha Raju Gadiraju ,  Robert Gregory Wagoner ,  Harmeet Singh Narang

IPC: H02J3/18 ,  H02J3/38 ,  H02K7/18

Abstract: A system of reactive power compensators for a wind farm includes a multi-winding transformer and a plurality of modular reactive power compensators (MVBs). The multi-winding transformer includes a primary winding and a plurality of secondary windings. The primary winding is configured to be coupled to a point of common coupling (POCC) for the wind farm. The plurality of MVBs are each coupled to a corresponding winding of the plurality of secondary windings.

公开(公告)号：US20210320601A1

公开(公告)日：2021-10-14

申请号：US16845447

申请日：2020-04-10

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Scott Wilmer

IPC: H02P9/10 ,  H02J3/38 ,  H02M5/458 ,  H02P9/00 ,  F03D9/25

Abstract: A method for controlling a power converter of a wind turbine power system connected to an electrical grid. The wind turbine power system has a generator and the power converter has rotor-side converter and a line-side converter. The method includes monitoring an electrical parameter of at least one of the wind turbine power system or the electrical grid. In response to detecting a transient event in the electrical grid, the method includes temporarily disabling the line-side converter of the power converter from the electrical grid. Either during the transient event or after the transient event is over, the method includes implementing a control action for the line-side converter of the power converter. Further, the method includes enabling the line-side converter of the power converter to the electrical grid.

公开(公告)号：US20210218245A1

公开(公告)日：2021-07-15

申请号：US16740108

申请日：2020-01-10

Applicant: General Electric Company

Inventor： Arvind Kumar Tiwari ,  Jayanti Navilgone Ganesh ,  Kasi Viswanadha Raju Gadiraju ,  Robert Gregory Wagoner ,  Harmeet Singh Narang

IPC: H02J3/18 ,  H02K7/18 ,  H02J3/38

Abstract: A system of reactive power compensators for a wind farm includes a multi-winding transformer and a plurality of modular reactive power compensators (MVBs). The multi-winding transformer includes a primary winding and a plurality of secondary windings. The primary winding is configured to be coupled to a point of common coupling (POCC) for the wind farm. The plurality of MVBs are each coupled to a corresponding winding of the plurality of secondary windings.

公开(公告)号：US10797486B2

公开(公告)日：2020-10-06

申请号：US16223967

申请日：2018-12-18

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith

IPC: H02J3/36 ,  H02J3/38 ,  F03D9/25 ,  H02P9/00 ,  H02P101/15

Abstract: A system and method for controlling voltage of a DC link of a power converter of a wind turbine power system connected to a power grid includes operating the DC link to an optimum voltage set point that achieves steady state operation of the power converter. The method also includes monitoring a speed of the wind turbine power system. Upon detection of one or more speed conditions occurring in the wind turbine power system, the method includes selecting a first maximum voltage set point for the DC link or a second maximum voltage set point for the DC link. Moreover, the method includes increasing the optimum voltage set point to the selected first or second maximum voltage set point of the DC link. In addition, the method includes operating the DC link at the selected first or second maximum voltage set point until the one or more speed conditions passes so as to optimize voltage control of the DC link.

公开(公告)号：US10742110B1

公开(公告)日：2020-08-11

申请号：US16449808

申请日：2019-06-24

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Anthony William Galbraith ,  David Smith

IPC: H02M1/32 ,  H03K17/14 ,  H02H7/12 ,  H02M5/45

Abstract: A method for operating a renewable energy power system driven by at least one renewable energy power source and having at least one current conversion device includes determining a temperature of power semiconductor device(s) of the current conversion device(s). The method also includes determining whether an amount of power of the renewable energy power source(s) is above a predetermined threshold. Further, the method includes increasing or maintaining the temperature of the power semiconductor device(s) during periods of time when the amount of the renewable energy power source(s) is below the predetermined threshold.

公开(公告)号：US20200158085A1

公开(公告)日：2020-05-21

申请号：US16752626

申请日：2020-01-25

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: F03D9/25 ,  H02M5/458

Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert the low voltage alternating current power provided on the stator bus to a medium voltage multiphase alternating current output power suitable for provision to the electrical grid. The power converter includes a plurality of conversion modules, each conversion module comprising 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：US20200067437A1

公开(公告)日：2020-02-27

申请号：US16113213

申请日：2018-08-27

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Cornelius Edward Holliday ,  Benjamin Arthur Niemoeller ,  David Smith

IPC: H02P9/08 ,  H02P9/00 ,  H02P9/30 ,  H02M5/458 ,  H02M1/36 ,  F03D1/00 ,  F03D7/02 ,  F03D17/00 ,  F03D9/25

Abstract: A power converter assembly for an electrical power system connected to a power grid includes a rotor-side converter configured for coupling to a generator rotor of a generator of the electrical power system, a line-side converter electrically coupled to rotor-side converter via a DC link, and a dynamic brake assembly electrically coupled to the DC link. The line-side converter is configured for coupling to the power grid. The dynamic brake assembly includes a plurality of switching devices connected in parallel and a plurality of inductors electrically coupled between the plurality of switching devices.

公开(公告)号：US20200059176A1

公开(公告)日：2020-02-20

申请号：US16608949

申请日：2018-04-09

Applicant: General Electric Company

Inventor： Govardhan Ganireddy ,  Arvind Kumar Tiwari ,  Yashomani Y Kolhatkar ,  Anthony Michael Klodowski ,  John Leo Bollenbecker ,  Harold Robert Schnetzka ,  Robert Gregory Wagoner ,  Veena Padmarao

IPC: H02P9/00 ,  H02S10/12 ,  H02S10/20 ,  F03D9/25

Abstract: A power generation system (100, 200, 300, 400) is presented. The power generation system includes a prime mover (102), a doubly-fed induction generator (DFIG) (104) having a rotor winding (126) and a stator winding (122), a rotor-side converter (106), a line-side converter (108), and a secondary power source (110, 401) electrically coupled to a DC-link (128). Additionally, the power generation system includes a control sub-system (112, 212, 312) having a controller, and a plurality of switching elements (130, and 132 or 201). The controller is configured to selectively control switching of one or more switching elements (130, and 132 or 201) based on a value of an operating parameter corresponding to at least one of the prime mover, the DFIG, or the secondary power source to connect the rotor-side converter in parallel to the line-side converter to increase an electrical power production by the power generation system.

公开(公告)号：US10530237B2

公开(公告)日：2020-01-07

申请号：US15715336

申请日：2017-09-26

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Harold Robert Schnetzka

IPC: H02M1/08 ,  H02M3/335 ,  H02J7/35 ,  H02M3/158 ,  H02J3/32 ,  H02J3/38 ,  H02M7/217 ,  H02J7/34

Abstract: An energy storage system for use in a renewable energy power system is provided. More particularly, an energy storage system can be coupled to the DC bus of a power converter in a renewable energy power system. A switching power supply can be coupled between the energy storage device and the DC bus of the power converter. The switching power supply can include a bi-directional resonant DC to DC converter. The bi-directional resonant converter can include a plurality of switching elements, a resonant circuit coupled to the at least one switching element, and a filtering circuit coupled to the resonant circuit. The bi-directional resonant converter can be configured to accommodate power flow in at least two directions.

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.