公开(公告)号：US10468881B2

公开(公告)日：2019-11-05

申请号：US15609458

申请日：2017-05-31

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith ,  Govardhan Ganireddy

IPC: H02J3/01 ,  H02M1/12 ,  H02M5/12 ,  H02M5/44 ,  H02J3/38

Abstract: An electrical power system connectable to a power grid includes a plurality of electrical power subsystems, each of the plurality of electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. The electrical power system further includes an intermediate power path extending from each of the plurality of electrical power subsystems for providing power from each of the plurality of electrical power subsystems to the power grid. The electrical power system further includes a zig-zag transformer electrically coupling each of the plurality of intermediate power paths to the power grid, the zig-zag transformer including a primary winding and a plurality of secondary windings, each of the plurality of secondary windings connected to one of the plurality of intermediate power paths, and wherein at least one of the plurality of secondary windings is a zig-zag winding.

公开(公告)号：US20190207541A1

公开(公告)日：2019-07-04

申请号：US15857881

申请日：2017-12-29

Applicant: General Electric Company

Inventor： Cornelius Edward Holliday ,  Robert Gregory Wagoner ,  David Smith

IPC: H02P9/00 ,  H02K7/18

CPC classification number: H02P9/007 ,  H02K7/183 ,  H02P9/006 ,  H02P2101/15

Abstract: A method for controlling temperature of a switching device of a power converter of an electrical power system includes monitoring, via one or more sensors, at least one operating condition of the electrical power system. Further, the method includes monitoring a temperature of the switching device. Moreover, the method includes controlling, via a control system communicatively coupled to the one or more sensors, torque of a generator of the electrical power system based on the at least one operating condition of the electrical power system so as maintain the temperature of the switching device below a predetermined threshold.

公开(公告)号：US20190158001A1

公开(公告)日：2019-05-23

申请号：US15817502

申请日：2017-11-20

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith

IPC: H02P9/00 ,  H02P9/10

Abstract: A DFIG power system defines a generator power path and a converter power path. The generator power path has a DFIG with a rotor and a stator. The converter power path has a power converter with a rotor-side converter coupled to a line-side converter via a DC link. The power converter has at least two power bridge circuits connected in parallel. A method of operating the DFIG power system includes monitoring, via one or more sensors, at least one electrical condition thereof. The method also includes comparing, via a control system, the at least one electrical condition to a predetermined threshold, the predetermined threshold being indicative of an occurrence of a transient overloading event. Further, the method includes alternating between non-interleaving and interleaving intervals if the at least one electrical condition exceeds the predetermined threshold so as to reduce harmonics of the DFIG power system.

公开(公告)号：US10288040B2

公开(公告)日：2019-05-14

申请号：US14851010

申请日：2015-09-11

Applicant: General Electric Company

Inventor： David Smith

IPC: G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  F03D7/04 ,  H02J3/38

Abstract: Systems and methods for determining current limits used in controlling wind turbine systems are provided. An example wind turbine controller identifies a largest current magnitude out of a first current magnitude, a second current magnitude, and a third current magnitude of a three phase power bus. The turbine controller averages the first current magnitude, the second current magnitude, and the third current magnitude to obtain an average current magnitude. The turbine controller determines a maximum current adjustment factor based at least in part on the largest current magnitude and based at least in part on the average current magnitude. The turbine controller adjusts a maximum current magnitude limit of the wind turbine by the maximum current adjustment factor to obtain an adjusted maximum current magnitude limit. The turbine controller controls the wind turbine based at least in part on the adjusted maximum current magnitude limit.

公开(公告)号：US20180351358A1

公开(公告)日：2018-12-06

申请号：US15609458

申请日：2017-05-31

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith ,  Govardhan Ganireddy

IPC: H02J3/01

CPC classification number: H02J3/01 ,  H02J3/386 ,  H02M1/12 ,  H02M5/12 ,  H02M5/44

Abstract: An electrical power system connectable to a power grid includes a plurality of electrical power subsystems, each of the plurality of electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. The electrical power system further includes an intermediate power path extending from each of the plurality of electrical power subsystems for providing power from each of the plurality of electrical power subsystems to the power grid. The electrical power system further includes a zig-zag transformer electrically coupling each of the plurality of intermediate power paths to the power grid, the zig-zag transformer including a primary winding and a plurality of secondary windings, each of the plurality of secondary windings connected to one of the plurality of intermediate power paths, and wherein at least one of the plurality of secondary windings is a zig-zag winding.

公开(公告)号：US09562950B2

公开(公告)日：2017-02-07

申请号：US14260596

申请日：2014-04-24

Applicant: General Electric Company

Inventor： Igor Berroteran Gil ,  Anthony Michael Klodowski ,  David Smith ,  Robert Allen Seymour ,  Benjamin Arthur Niemoeller

IPC: G01R31/40 ,  G01R19/165 ,  H02S50/10 ,  G01R31/42 ,  G01R31/02

CPC classification number: G01R31/40 ,  G01R19/16538 ,  G01R31/025 ,  G01R31/2607 ,  G01R31/2827 ,  G01R31/42 ,  H02S50/10

Abstract: The present disclosure is directed to an automated apparatus and method for testing a crowbar circuit of power converter. The crowbar circuit includes an anti-parallel diode and a voltage-controlled switching element, e.g. a silicon-controlled rectifier (SCR). The method includes implementing a first test sequence for testing operability of the diode and a second test sequence for testing operability of the voltage-controlled switching element. More specifically, the first test sequence determines a first current-voltage feedback that is indicative of the operability of the diode and the second test sequence determines a second current-voltage feedback that is indicative of the operability of the voltage-controlled switching element.

Abstract translation: 本公开涉及一种用于测试功率转换器的撬棒电路的自动化装置和方法。 短路电路包括反并联二极管和电压控制开关元件，例如， 硅控整流器（SCR）。 该方法包括实现用于测试二极管的可操作性的第一测试序列和用于测试压控开关元件的可操作性的第二测试序列。 更具体地，第一测试序列确定指示二极管的可操作性的第一电流 - 电压反馈，并且第二测试序列确定表示电压控制的开关元件的可操作性的第二电流 - 电压反馈。

公开(公告)号：US20170032161A1

公开(公告)日：2017-02-02

申请号：US15295093

申请日：2016-10-17

Applicant: General Electric Company

Inventor： Charles Theurer ,  Douglas Forman ,  Brandon Good ,  Shaopen Liu ,  David Smith ,  Todd Scarola ,  Robert Wallace ,  Judith Guzzo

IPC: G06K7/10

CPC classification number: G06K7/10366 ,  A61B90/90 ,  A61B90/98 ,  G06F19/00 ,  G06K7/10316 ,  G06Q50/22 ,  G16H10/65 ,  G16H40/20

Abstract: A system and method to detect an event associated with a first object relative to a second object and a support is provided. The system can include an antenna at a support to receive the first object, a tag reader in communication with the antenna and a tag located on the second object. In response to detecting a change in impedance of the antenna associated with the presence of the first object, the tag reader communicates a presence signal. In response to detecting the tag within a threshold proximity of the tag reader, the tag reader generates a tag signal. A remoter server is operable to detect an association of the first and second objects based on a comparison a time associated with each of the tag signal and the presence signal, and in response then creates an output indicative of a detected event based on the association for illustration.

Abstract translation: 提供了一种用于检测与第一对象相关联的事件相对于第二对象和支持的系统和方法。 该系统可以包括在支撑件处的天线以接收第一对象，与天线通信的标签读取器和位于第二对象上的标签。 响应于检测到与第一对象的存在相关联的天线的阻抗的变化，标签读取器传达存在信号。 响应于在标签读取器的阈值接近度内检测到标签，标签读取器产生标签信号。 远程服务器可操作以基于与标签信号和存在信号中的每一个相关联的时间的比较来检测第一和第二对象的关联，并且响应于此响应于基于该关联来创建指示检测到的事件的输出 插图。

公开(公告)号：US20150178529A1

公开(公告)日：2015-06-25

申请号：US14135870

申请日：2013-12-20

Applicant: General Electric Company

Inventor： Charles Theurer ,  Judith Guzzo ,  Douglas Forman ,  Brandon Good ,  Todd Scarola ,  Shaopeng Liu ,  Robert Wallace ,  David Smith

IPC: G06K7/10

CPC classification number: G06K7/10366 ,  A61B90/90 ,  A61B90/98 ,  G06F19/00 ,  G06K7/10316 ,  G06Q50/22 ,  G16H10/65 ,  G16H40/20

Abstract: A system and method to detect an event associated with a first object relative to a second object and a support is provided. The system can include an antenna at a support to receive the first object, a tag reader in communication with the antenna and a tag located on the second object. In response to detecting a change in impedance of the antenna associated with the presence of the first object, the tag reader communicates a presence signal. In response to detecting the tag within a threshold proximity of the tag reader, the tag reader generates a tag signal. A remoter server is operable to detect an association of the first and second objects based on a comparison a time associated with each of the tag signal and the presence signal, and in response then creates an output indicative of a detected event based on the association for illustration.

Abstract translation: 提供了一种用于检测与第一对象相关联的事件相对于第二对象和支持的系统和方法。 该系统可以包括在支撑件处的天线以接收第一对象，与天线通信的标签读取器和位于第二对象上的标签。 响应于检测到与第一对象的存在相关联的天线的阻抗的变化，标签读取器传达存在信号。 响应于在标签读取器的阈值接近度内检测到标签，标签读取器产生标签信号。 远程服务器可操作以基于与标签信号和存在信号中的每一个相关联的时间的比较来检测第一和第二对象的关联，并且响应于此响应于基于该关联来创建指示检测到的事件的输出 插图。

公开(公告)号：US20130049478A1

公开(公告)日：2013-02-28

申请号：US13649359

申请日：2012-10-11

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  David Smith

IPC: H02M7/537 ,  H02J1/00

CPC classification number: H02M1/36 ,  H02J3/383 ,  H02M3/1584 ,  H02M7/5395 ,  H02M2001/007 ,  Y02E10/563 ,  Y10T307/50 ,  Y10T307/707

Abstract: A power system includes a converter configured to be electrically coupled to a power source, the power source including an energy storage device. An inverter coupled to the converter can transfer power between the converter and an electrical distribution network. A control system coupled to the converter and to the inverter can gradually adjust a voltage across at least one of the converter or the inverter during at least one of a shutdown sequence or a startup sequence of the power converter system.

Abstract translation: 电力系统包括被配置为电耦合到电源的转换器，所述电源包括能量存储装置。 耦合到转换器的逆变器可以在转换器和配电网之间传输功率。 耦合到转换器和逆变器的控制系统可以在功率转换器系统的关断顺序或启动顺序中的至少一个期间逐渐地调整转换器或逆变器中的至少一个的电压。

公开(公告)号：US10148205B2

公开(公告)日：2018-12-04

申请号：US15422604

申请日：2017-02-02

Applicant: General Electric Company

Inventor： Robert Gregory Wagoner ,  Dong Dong ,  Govardhan Ganireddy ,  David Smith

IPC: H02M7/53862 ,  H02M7/5387 ,  H02P9/00 ,  H02M3/335 ,  H02M5/42 ,  H02M1/084

Abstract: Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. The plurality of switching devices can include one or more silicon carbide MOSFETs. A control method can include providing, by a control system, one or more gating commands to a first inverter block in the plurality of inverter blocks. The control method can further include implementing, by the control system, a gating command delay to generate a first delayed gating command based at least in part on the one or more gating commands. The control method can further include providing, by the control system, the first delayed gating command to a second inverter block in the plurality of inverter blocks.