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公开(公告)号：US20180191236A1
公开(公告)日：2018-07-05
申请号：US15398866
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Warren Mark Blewitt
CPC classification number: H02M7/003 , H02M1/126 , H02M3/33584 , H02M3/3376 , H02M5/4585 , H02M7/4807 , H02M7/49 , H02M2001/0058 , H02M2001/327 , Y02B70/1483 , Y02B70/1491
Abstract: Filter devices for use in power conversion systems utilizing silicon carbide MOSFETs are provided. A power conversion system can include a power converter configured to convert power from a first power to a second power. The second power can have at least one different characteristic from the first power. The power converter can include one or more silicon carbide MOSFET. The power conversion system can further include a filter device configured to filter at least a portion of one or more switching harmonics from power converted by the power converter.
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公开(公告)号：US20170373626A1
公开(公告)日：2017-12-28
申请号：US15193302
申请日：2016-06-27
Applicant: General Electric Company
IPC: H02P9/10 , H02K7/18 , H02P9/00 , H02P101/15
CPC classification number: H02P9/102 , F03D9/255 , H02J3/386 , H02J2003/001 , H02K7/183 , H02P9/006 , H02P9/007 , H02P2101/15 , H02P2201/03 , H03K17/166 , H03K17/168 , Y02E10/763
Abstract: Systems and methods for controlling operation of a power converter based on grid conditions are provided. In particular, a first gating voltage can be applied to a switching element of a power converter associated with a wind-driven power generation system. The first gating voltage can be greater than a threshold voltage for the switching element. A grid event associated with an electrical grid coupled to the power generation system can be detected. A second gating voltage can be applied to the gate of the switching element during the detected grid event. The second gating voltage can be greater than the first gating voltage.
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公开(公告)号：US20170310234A1
公开(公告)日：2017-10-26
申请号：US15138335
申请日：2016-04-26
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Harold Robert Schnetzka , Lukas Mercer Hansen , Wayne Allen Schulz , Bennett Steven Sheron , Douglas Austin
IPC: H02M5/458
CPC classification number: H02M5/458 , H02M3/33523 , H02M3/33576 , H02M3/33584 , H02M3/33592 , H02M7/5387 , Y02B70/1475 , Y02B70/1483
Abstract: Systems and methods associated with example power converter systems are disclosed. For instance, a power converter system can include a power converter couplable to an input power source and configured to generate an output power substantially at a grid frequency. The power converter can include one or more inverter bridge circuits, each associated with an output phase of the power converter. Each inverter bridge circuit can include one or more first switching modules having a pair of switching elements coupled in series with one another, and an output coupled between the pair of switching elements. At least one switching element of each first switching module includes a reverse blocking transistor. The power converter further includes one or more input bridge circuits having a plurality of second switching modules coupled in parallel, each second switching module comprising a pair of silicon carbide transistors.
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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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45.发明授权System and method for controlling switching elements within a single-phase bridge circuit 有权用于控制单相桥式电路内的开关元件的系统和方法公开(公告)号：US09362859B2
公开(公告)日：2016-06-07
申请号：US14036039
申请日：2013-09-25
Applicant: General Electric Company
IPC: H02M5/45 , H02P9/00 , H02M1/38 , H02M5/458 , H02M7/5387 , H02P101/15
CPC classification number: H02P9/007 , H02M1/38 , H02M5/4585 , H02M7/5387 , H02M2001/385 , H02P2101/15
Abstract: In one aspect, a method for controlling the operation of switching elements contained within a single-phase bridge circuit of a power convertor may include monitoring gate voltages of a first switching element and a second switching element of the single-phase bridge circuit and controlling the first and second switching elements so that each switching element is alternated between an activated state and a deactivated state. In addition, the method may include transmitting a gating command signal to adjust the first switching element from the deactivated state to the activated state when: a first gate drive command is received that is associated with switching the first switching element to the activated state; a second gate drive command is received that is associated with switching the second switching element to the deactivated state; and the gate voltage of the second switching element is less than a predetermined voltage threshold.
Abstract translation: 一方面，用于控制包含在功率转换器的单相桥式电路中的开关元件的操作的方法可以包括监视单相桥式电路的第一开关元件和第二开关元件的栅极电压，并且控制 第一和第二开关元件，使得每个开关元件在激活状态和去激活状态之间交替。 此外，该方法可以包括：当接收到与将第一开关元件切换到激活状态相关联的第一栅极驱动命令时，发送选通命令信号以将第一开关元件从禁用状态调整到激活状态; 接收与第二开关元件切换到去激活状态相关联的第二栅极驱动命令; 并且第二开关元件的栅极电压小于预定电压阈值。
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Patent Agency Ranking
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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47.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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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：US20140361538A1
公开(公告)日：2014-12-11
申请号：US13910519
申请日：2013-06-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Amy M. Ridenour
IPC: F03D7/02
CPC classification number: F03D7/0244 , F03D7/0284 , F03D9/255 , F05B2270/10711 , F05B2270/3032 , H02P3/22 , H02P9/10 , H02P9/102 , H02P2101/15 , Y02E10/723
Abstract: Wind turbine systems and methods for operating wind turbine systems are provided. In one embodiment, a method includes gating on a dynamic brake switch of a dynamic brake in a wind turbine power converter when an experienced direct current (DC) bus voltage is equal to or greater than a threshold DC bus voltage. The method further includes disabling a threshold temperature rating for the dynamic brake switch when the dynamic brake switch is gated on, and gating off the dynamic brake switch when the experienced DC bus voltage is less than the threshold DC bus voltage.
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。 在一个实施例中，当有经验的直流（DC）总线电压等于或大于阈值DC总线电压时，方法包括在风力涡轮机功率转换器中对动态制动器的动态制动开关进行选通。 该方法还包括当动态制动开关选通时禁用动态制动开关的阈值温度额定值，以及当有经验的直流母线电压小于阈值直流母线电压时，选通动态制动开关。
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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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