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公开(公告)号：US09671442B2
公开(公告)日：2017-06-06
申请号：US13689860
申请日：2012-11-30
Applicant: General Electric Company
CPC classification number: G01R27/16 , G01R31/42 , H02J3/381 , H02J3/383 , H02J3/386 , H02J2003/388 , Y02E10/563 , Y02E10/763
Abstract: A method for detecting a grid event is provided. The method includes sampling grid voltage and grid current over a fixed period of time; determining grid impedance at one or more frequencies using the sampled grid voltage and the sampled grid current; comparing the grid impedance at the one or more frequencies to a known expected grid impedance at the one or more frequencies; and detecting a grid event based on the comparison.
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公开(公告)号：US09520808B2
公开(公告)日：2016-12-13
申请号：US14288067
申请日：2014-05-27
Applicant: General Electric Company
Inventor： Allen Michael Ritter , Robert Allen Seymour , Rajib Datta , John Douglas D'Atre
CPC classification number: H02M7/53873 , H02M1/40 , H02P27/06 , H02P27/10 , H02P27/12
Abstract: A method and system for a control circuit are provided. The circuit includes an integrating counter coupled to a process wherein the integrating counter is configured to integrate over time a process parameter signal received from the process and to generate a trigger signal when the integrated signal equals a predetermined count. The control circuit also includes a transition controller electrically coupled to a respective control element and configured to receive the trigger signal generated by the integrating counter.
Abstract translation: 提供了一种用于控制电路的方法和系统。 该电路包括一个与一个过程耦合的积分计数器，其中该积分计数器配置成随着时间的过去积分从该过程接收到的一个过程参数信号，并在该积分信号等于一个预定计数时产生一个触发信号。 控制电路还包括电耦合到相应的控制元件并被配置为接收由积分计数器产生的触发信号的转换控制器。
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13.发明申请SYSTEM AND METHOD FOR COOLING OR CLEANING A SLIP RING ASSEMBLY OF A GENERATOR 审中-公开用于冷却或清洁发电机的滑环组件的系统和方法公开(公告)号：US20160248304A1
公开(公告)日：2016-08-25
申请号：US14629783
申请日：2015-02-24
Applicant: General Electric Company
Inventor： Brian Andreson , Adam Lord , Stephen Hugh Black , Allen Michael Ritter
IPC: H02K9/28
CPC classification number: H02K9/28 , F03D9/25 , F03D80/55 , F03D80/60 , H02K5/20 , H02K7/1838 , H02K9/04 , Y02E10/725
Abstract: The present disclosure is directed to a system and method for cooling or cleaning a slip ring assembly of a generator of a wind turbine. The slip ring assembly is at least partially enclosed in a slip ring compartment. In addition, the slip ring assembly includes an electrically conductive slip ring mounted to the rotatable shaft and a fixed conductive ring assembly having slip-ring contacting members mounted thereon. The conduit assembly is configured to direct fluid into the slip ring compartment so as to cool or clean the slip ring compartment. Further, the conduit assembly extends from a first end to a second end. More specifically, the first end is configured at or before an inlet of the generator assembly, whereas the second end is configured at the slip ring compartment.
Abstract translation: 本公开涉及用于冷却或清洁风力涡轮机的发电机的滑环组件的系统和方法。 滑环组件至少部分地封闭在滑环隔室中。 此外，滑环组件包括安装到可旋转轴的导电滑环和安装在其上的滑环接触构件的固定导电环组件。 导管组件被构造成将流体引导到滑环隔室中，以便冷却或清洁滑环隔室。 此外，导管组件从第一端延伸到第二端。 更具体地，第一端构造在发电机组件的入口之前或之前，而第二端构造在滑环隔室处。
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公开(公告)号：US20150194904A1
公开(公告)日：2015-07-09
申请号：US14148223
申请日：2014-01-06
Applicant: General Electric Company
Inventor： Cyrus David Harbourt , Allen Michael Ritter , Robert Gregory Wagoner
CPC classification number: H02M7/06 , H02M7/483 , H02M7/487 , H02M2001/0058 , H02M2001/007 , H02P27/04 , Y02B70/1491
Abstract: Systems and methods for converting power are presented. The power conversion includes conducting load current through a first current path of multiple current paths in a power conversion unit using switches, diodes, or a combination thereof. The power conversion also includes blocking one or more additional current paths of the multiple current paths in the power conversion unit using one or more of the switches, one or more of the diodes, or a combination thereof. Furthermore, the power conversion includes reducing potential voltage stress on the one or more switches by using one or more voltage stress reduction switches to reduce a voltage that is blocked by the one or more blocking switches or diodes by connecting an end of each of the one or more switches opposite to a blocking edge to an intermediate voltage node.
Abstract translation: 介绍了转换功率的系统和方法。 功率转换包括通过使用开关，二极管或其组合的功率转换单元中的多个电流路径的第一电流路径来传导负载电流。 功率转换还包括使用一个或多个开关，一个或多个二极管或其组合来阻断功率转换单元中的多个电流路径的一个或多个附加电流路径。 此外，功率转换包括通过使用一个或多个电压应力降低开关来降低一个或多个开关上的潜在电压应力，以通过将一个或多个开关或二极管中的每一个的一端连接来减小被一个或多个阻塞开关或二极管阻塞的电压 或更多的开关与中间电压节点的阻塞边缘相对。
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15.发明申请公开(公告)号：US20150180273A1
公开(公告)日：2015-06-25
申请号：US14138224
申请日：2013-12-23
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Allen Michael Ritter
CPC classification number: H02J7/1415 , F03D9/11 , F03D9/255 , H02J3/32 , H02J3/386 , H02M1/12 , H02M5/293 , H02M5/44 , H02M2001/123 , H02P9/007 , Y02E10/763 , Y10T307/406
Abstract: A system for operating a power generation system within a battery storage/discharge mode includes a power convertor having a DC link, a switching module coupled to the DC link, a storage device, and a filter coupled between the storage device and power converter. The filter may correspond to a normal mode filter configured to limit normal mode voltage from being applied to the storage device. A common mode filter may be associated with the storage device. The storage device may correspond to one or more batteries while the power generation system may correspond to a wind-driven generator.
Abstract translation: 用于在电池存储/放电模式下操作发电系统的系统包括具有DC链路的功率转换器，耦合到DC链路的开关模块，存储装置和耦合在存储装置和功率转换器之间的滤波器。 滤波器可以对应于被配置为限制正常模式电压被施加到存储设备的正常模式滤波器。 共模滤波器可以与存储设备相关联。 存储装置可以对应于一个或多个电池，而发电系统可以对应于风力发电机。
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Patent Agency Ranking
16.发明授权公开(公告)号：US09065377B2
公开(公告)日：2015-06-23
申请号：US13838925
申请日：2013-03-15
Applicant: General Electric Company
Inventor： Chunchun Xu , Allen Michael Ritter , Cyrus David Harbourt , Luis Jose Garces , Cheng Luo
CPC classification number: H02P27/06 , H02M1/12 , H02M5/45 , H02M7/17 , H02M7/19 , H02M7/493 , H02M7/521 , H02P25/024 , H02P29/032 , H02P2201/13
Abstract: A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include an alternating current to direct current (AC-to-DC) source side converter, a DC link circuit, and a DC-to-AC load side inverter. The system may include a controller for selectively controlling at least one of the first supply bridge and the second supply bridge by selective firings of silicon controlled rectifiers (SCRs). The electrical power outputted from the first supply bridge and the second supply bridge may be combined by an output delta-wye electric power transformer and supplied to the electrical machine. The LCI drive system may further include one or more input electric power transformers configured to supply an input electric power to the first supply bridge and the second supply bridge.
Abstract translation: 提供了一种用于同步电机的负载换向逆变器（LCI）驱动系统。 该系统可以包括第一供电桥和第二供电桥，每个电桥可以包括直流（AC至DC）源侧转换器，直流链路电路和直流到交流负载侧的交流电 逆变器。 该系统可以包括控制器，用于通过硅控整流器（SCR）的选择性启动来选择性地控制第一供电桥和第二供电桥中的至少一个。 从第一供电桥和第二供电桥输出的电力可以由输出三角形电力变压器组合并供给电机。 LCI驱动系统还可以包括一个或多个输入电力变压器，其被配置为向第一供电桥和第二供电桥提供输入电力。
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公开(公告)号：US20150162905A1
公开(公告)日：2015-06-11
申请号：US14101579
申请日：2013-12-10
Applicant: General Electric Company
IPC: H03K17/567 , H02M1/08
CPC classification number: H03K17/567 , H02M1/08 , H03K17/0412 , H03K17/168
Abstract: High performance gate drives and methods for driving semiconductor switching elements, such as insulated gate bipolar transistors (IGBTs), are provided. The gate drive can control the voltage applied to the gate of the IGBT to one or more intermediate voltages near the threshold voltage of the IGBT to control dv/dt of the collector-emitter voltage during and the di/dt of the collector current turn off. For instance, a voltage level between the turn on voltage and the turn off voltage can be applied for a first time period to control dv/dt of the collector-emitter voltage and di/dt of the collector current during turn off. Another voltage level between the turn on voltage and the turn off voltage can be applied for a second time period during reverse recovery of a freewheeling diode coupled in parallel with the IGBT.
Abstract translation: 提供了高性能栅极驱动器和用于驱动半导体开关元件的方法，例如绝缘栅双极晶体管（IGBT）。 栅极驱动器可以将施加到IGBT的栅极的电压控制在IGBT阈值电压附近的一个或多个中间电压，以控制集电极 - 发射极电压的dv / dt，并且集电极电流的di / dt关闭 。 例如，可以在第一时间段内施加导通电压和关断电压之间的电压电平，以控制关断期间集电极 - 发射极电压的dv / dt和集电极电流的di / dt。 在与IGBT并联耦合的续流二极管的反向恢复期间，可以在第二时间段内施加导通电压和关断电压之间的另一个电压电平。
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公开(公告)号：US20140152331A1
公开(公告)日：2014-06-05
申请号：US13689860
申请日：2012-11-30
Applicant: GENERAL ELECTRIC COMPANY
IPC: G01R27/16
CPC classification number: G01R27/16 , G01R31/42 , H02J3/381 , H02J3/383 , H02J3/386 , H02J2003/388 , Y02E10/563 , Y02E10/763
Abstract: A method for detecting a grid event is provided. The method includes sampling grid voltage and grid current over a fixed period of time; determining grid impedance at one or more frequencies using the sampled grid voltage and the sampled grid current; comparing the grid impedance at the one or more frequencies to a known expected grid impedance at the one or more frequencies; and detecting a grid event based on the comparison.
Abstract translation: 提供了一种用于检测网格事件的方法。 该方法包括在一定时间内对电网电压和电网电流进行采样; 使用采样的电网电压和采样的电网电流来确定一个或多个频率的电网阻抗; 将所述一个或多个频率处的电网阻抗与所述一个或多个频率处的已知预期电网阻抗进行比较; 以及基于所述比较来检测网格事件。
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19.发明申请公开(公告)号：US20170370349A1
公开(公告)日：2017-12-28
申请号：US15193185
申请日：2016-06-27
Applicant: General Electric Company
IPC: F03D80/00
CPC classification number: F03D80/00 , F03D9/25 , F03D9/255 , F03D80/60 , F03D80/80 , F05B2240/912 , F05B2260/20 , F05B2260/64 , F05B2270/303 , F05B2270/323 , F05B2270/325 , Y02E10/728
Abstract: A system for adjusting environmental operating conditions associated with heat generating components located within a tower of a wind turbine may include a heat generating component located within an interior of the tower, a sensor configured to monitor a heat exchange parameter associated with the wind turbine and a split heat exchange system provided relative to the tower. The split heat exchange system may include a first heat exchanger located within the interior of the tower and a second heat exchanger located exterior to the tower. The system may also include a controller communicatively coupled to the sensor and the split heat exchange system. The controller may be configured to control the operation of the split heat exchange system based at least in part on the monitored heat exchange parameter to adjust an environmental operating condition associated with the heat generating component.
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20.发明授权公开(公告)号：US09450503B2
公开(公告)日：2016-09-20
申请号：US13967437
申请日：2013-08-15
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Allen Michael Ritter
Abstract: The present subject matter is directed to apparatus and methods for producing a variable frequency output waveform from a power converter for use in a power generation system, such as a wind turbine power generation system. A voltage divider is employed to provide plural voltage levels to which a multi-level bridge circuit employing selectively activated switches in pairs of switches is coupled. The switches are operated in such a fashion as to produce a generally sinusoidal waveform that may be easily filtered by low cost filters due to the plural voltage levels to produce a generally smooth sine wave from the converter. Such converters may be used in various environments including in pairs in multi-phase power converters.
Abstract translation: 本发明涉及从用于诸如风力发电系统的发电系统中使用的功率转换器产生可变频率输出波形的装置和方法。 使用分压器来提供多个电压电平，其中使用成对的开关中的选择性激活的开关的多电平电桥电路耦合到该电平。 这些开关的操作方式是产生大致正弦的波形，由于多个电压电平可以从转换器产生大致平滑的正弦波，所以能够被低成本滤波器容易地滤波。 这种转换器可以在包括多相电力转换器中的成对的各种环境中使用。
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