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

Inventor： Harold Robert Schnetzka ,  Anthony Michael Klodowski ,  Sidney Allen Barker

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.

公开(公告)号：US10218298B2

公开(公告)日：2019-02-26

申请号：US15290162

申请日：2016-10-11

Applicant: General Electric Company

Inventor： Sidney Allen Barker

IPC: F03D9/00 ,  H02P9/04 ,  H02P9/00 ,  G05F1/70 ,  H02J3/38 ,  F03D9/25 ,  H02P101/15 ,  F03D7/02

Abstract: Systems and methods for controlling reactive current output of a line converter in a power system are provided. In one example embodiment, a method includes receiving a margin signal determined based at least in part on a stator current margin or a rotor current margin. The method includes determining a spillover margin based at least in part on the margin signal. The method includes determining an adjusted spillover margin using a spillover gain. The method includes determining a reactive current command for a line converter based at least in part on the adjusted spillover margin. The method includes controlling the output of the reactive current by the line converter based at least in part on the reactive current command. The spillover gain is variable based at least in part on a maximum line converter current.

公开(公告)号：US20170272014A1

公开(公告)日：2017-09-21

申请号：US15072774

申请日：2016-03-17

Applicant: General Electric Company

Inventor： Wei Ren ,  Einar Vaughn Larsen ,  Sidney Allen Barker

IPC: H02P9/00 ,  F03D9/00

CPC classification number: H02P9/007 ,  F03D9/255 ,  H02J3/18 ,  H02M1/42 ,  Y02B70/12

Abstract: The present subject matter is directed to a system and method for operating an electrical power circuit connected to a power grid. The power circuit includes a power converter electrically coupled to a generator. The method includes monitoring at least one speed condition of the generator during operation of the power circuit. Another step includes determining one or more voltage conditions of the power circuit. The method also includes calculating a maximum reactive current for the generator as a function of at least one of the speed condition or the one or more voltage conditions. Thus, the method also includes operating the generator based on the maximum reactive current so as to prevent an actual modulation index of the power converter from exceeding a predetermined threshold.

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

IPC: F03D9/00 ,  F03D7/00

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.

公开(公告)号：US09577421B2

公开(公告)日：2017-02-21

申请号：US14742737

申请日：2015-06-18

Applicant: General Electric Company

Inventor： Sidney Allen Barker ,  Cornelius Edward Holliday

IPC: H02H5/04 ,  H02H3/16

CPC classification number: H02H3/16 ,  F03D7/0284 ,  F03D7/048 ,  F05B2270/337 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763

Abstract: The present subject matter is directed to a system and method for operating a wind turbine connected to a power grid. The method includes receiving, via a controller, one or more current feedback signals from one or more electric current sensors of the wind turbine. Another step includes determining, via the controller, if a ground fault is occurring in the wind turbine based on the current feedback signals. In response to detecting a ground fault, the method includes tripping one or more electrical components of the wind turbine and electrically de-coupling the wind turbine from the power grid.

Abstract translation: 本发明涉及用于操作连接到电网的风力涡轮机的系统和方法。 该方法包括经由控制器接收来自风力涡轮机的一个或多个电流传感器的一个或多个电流反馈信号。 另一步骤包括通过控制器确定基于当前反馈信号在风力涡轮机中是否发生接地故障。 响应于检测到接地故障，该方法包括跳闸风力涡轮机的一个或多个电气部件并将风力涡轮机与电网电耦合。

公开(公告)号：US09458830B2

公开(公告)日：2016-10-04

申请号：US14477903

申请日：2014-09-05

Applicant: General Electric Company

Inventor： Sidney Allen Barker ,  Einar Vaughn Larsen

IPC: F03D9/00 ,  H02P9/10 ,  H02P9/30 ,  H02J3/18 ,  H02P9/00

CPC classification number: F03D7/0284 ,  H02J3/16 ,  H02J3/18 ,  H02J3/386 ,  H02P9/007 ,  H02P9/102 ,  H02P9/305 ,  Y02E10/72 ,  Y02E10/723

Abstract: The present disclosure is directed to a system and method for improving reactive current response time in a renewable energy power system connected to a power grid. The method includes providing, via a controller of the power system, a permissive logic relating to the power grid. Another step includes determining, via a controller of the renewable energy power system, a reactive current reference command for the renewable energy power system in response to the permissive logic being satisfied. The method also includes generating, via the controller, a reactive current pulse command for the renewable energy power system. Thus, the controller is configured to determine a total reactive current command by combining the reactive current reference command and the reactive current pulse command. Further, the method includes operating the renewable energy power system based on the total reactive current command so as to improve the current response time.

Abstract translation: 本公开涉及一种用于改善连接到电网的可再生能源电力系统中的无功电流响应时间的系统和方法。 该方法包括通过电力系统的控制器提供与电力网相关的许可逻辑。 另一步骤包括通过可再生能源电力系统的控制器确定响应于允许的逻辑被满足的可再生能源电力系统的无功电流参考命令。 该方法还包括通过控制器产生用于可再生能源电力系统的无功电流脉冲命令。 因此，控制器被配置为通过组合无功电流参考命令和无功电流脉冲命令来确定总无功电流命令。 此外，该方法包括基于总无功电流指令来操作可再生能源电力系统，以改善电流响应时间。

公开(公告)号：US20150249414A1

公开(公告)日：2015-09-03

申请号：US14193838

申请日：2014-02-28

Applicant: General Electric Company

Inventor： Sidney Allen Barker

IPC: H02P9/00 ,  F03D9/00 ,  F03D7/00

CPC classification number: H02P9/007 ,  F03D9/255 ,  H02J3/386 ,  H02P29/0241 ,  H02P2101/15 ,  Y02E10/72 ,  Y02E10/763

Abstract: Wind turbine systems and methods for operating wind turbine systems are provided. A method includes monitoring an operating condition of the wind turbine system, and determining whether the operating condition has exceeded a predetermined threshold. The method further includes switching a plurality of switches devices in a rotor side converter of a power converter of the wind turbine system in a normal switching mode if the operating condition is less than the predetermined threshold. The method further includes switching the plurality of switching devices in a short circuit switching mode if the operating condition is greater than or equal to the predetermined threshold. The method further includes switching the plurality of switching devices in the normal switching mode after switching in the short circuit mode if the operating condition decreases below the predetermined threshold and a secondary operating condition is below a secondary predetermined threshold.

Abstract translation: 提供了用于操作风力涡轮机系统的风力涡轮机系统和方法。 一种方法包括监视风力涡轮机系统的运行状况，以及确定运行状态是否超过预定阈值。 该方法还包括如果操作条件小于预定阈值，则以正常切换模式切换风力涡轮机系统的功率转换器的转子侧转换器中的多个开关装置。 该方法还包括如果操作条件大于或等于预定阈值，则以短路切换模式切换多个开关装置。 该方法还包括如果操作条件降低到低于预定阈值并且次要操作条件低于次级预定阈值，则在切换短路模式之后切换正常切换模式。