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公开(公告)号：US08907716B2
公开(公告)日：2014-12-09
申请号：US13767641
申请日：2013-02-14
Applicant: General Electric Company
Inventor： Jun Zhu , Robert Gregory Wagoner , Huibin Zhu , Chengjun Wang
IPC: H03K17/687 , H03K17/56
CPC classification number: H03K17/56 , H03K17/08128
Abstract: A device includes a controller configured to regulate one or more voltages applied to a gate of an insulated gate bipolar transistor (IGBT). The controller is configured to receive one or more voltage values associated with the IGBT, and generate a gating signal and transmit the gating signal to the IGBT. The gating signal is configured to activate or deactivate the IGBT. The controller is configured to generate a voltage clamping signal and transmit the voltage clamping signal to activate or deactivate an active switching device. The active switching device is configured to periodically limit the one or more voltage values associated with the IGBT based at least in part on one or more characteristics of the voltage clamping signal.
Abstract translation: 一种器件包括被配置为调节施加到绝缘栅双极晶体管（IGBT）的栅极的一个或多个电压的控制器。 控制器被配置为接收与IGBT相关联的一个或多个电压值，并产生选通信号并将选通信号发送到IGBT。 门控信号被配置为激活或禁用IGBT。 控制器被配置为产生电压钳位信号并传送电压钳位信号以激活或去激活有源开关器件。 有源开关装置被配置为至少部分地基于电压钳位信号的一个或多个特性周期性地限制与IGBT相关联的一个或多个电压值。
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22.发明授权System and method for optimization of dual bridge doubly fed induction generator (DFIG) 有权双桥双馈感应发电机（DFIG）优化系统及方法公开(公告)号：US08791671B2
公开(公告)日：2014-07-29
申请号：US13707965
申请日：2012-12-07
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , David Smith
IPC: H02P11/00
Abstract: The present subject matter is directed to systems and methods for improving reliability of dual bridge doubly fed induction generators (DFIGs) by reducing the number of required components in the converters associated with such DFIGs. A converter is constructed using a pair of current conducting bridges wherein one of the current conducting bridges is controlled and the second is not controlled. The uncontrolled bridge may correspond to a pair of diodes while the controlled bridge may correspond to a pair of transistors, in particular, a pair of IGBT transistors.
Abstract translation: 本主题涉及通过减少与这种DFIG相关联的转换器中所需部件的数量来提高双桥双馈感应发电机（DFIG）的可靠性的系统和方法。 A转换器使用一对导电桥构成，其中电流导电桥之一被控制，而第二导电桥不受控制。 不受控制的桥可以对应于一对二极管，而受控桥可对应于一对晶体管，特别是一对IGBT晶体管。
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公开(公告)号：US20230261473A1
公开(公告)日：2023-08-17
申请号：US17673139
申请日：2022-02-16
Applicant: General Electric Company
Inventor： Fernando Arturo Ramirez Sanchez , Robert Gregory Wagoner , Zane Taylor Miller , Steven Wade Sutherland
CPC classification number: H02J3/381 , H02J3/36 , H02M1/36 , H02P9/08 , H02J2300/28
Abstract: A system and method for pre-charging a DC link of a multi-level power converter, to reduce electrical transients or to decrease a charging current when a converter contactor/disconnect switch is closed, is described. The systems and methods of the present disclosure also provides a new and simplified system for pre-charging a DC link of a multi-level power converter by leveraging a neutral point of a multi-level power converter and a single-line connection to the grid side of the power converter. The DC link charger of the present disclosure, therefore, is capable of reducing the quantity of dedicated superfluous hardware and/or excess resistors, contactors, transformers, fuses, diodes, balancing components, rectifier modules, etc. demanded by conventional systems. Reduced quantities of electronic components and hardware can thereby decrease system costs per unit and lead to significant cost savings.
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24.发明授权公开(公告)号：US11594953B1
公开(公告)日：2023-02-28
申请号：US17506790
申请日：2021-10-21
Applicant: General Electric Company
Abstract: A method for operating a multi-level bridge power converter of an electrical power system connected to a power grid includes providing a plurality of switching devices of the power converter in one of a neutral point clamped topology or an active neutral point clamped topology, the plurality of switching devices including a first group and a second group of switching devices. The method also includes providing a multi-state deadtime for the first and second groups of switching devices that changes based on different state transitions of the power converter. Further, the method includes operating the first and second groups of switching devices according to the multi-state deadtime to allow the first group to switch differently than the second group during the different state transitions, thereby decreasing voltage overshoots on the first group during one or more of the different state transitions and providing safe transition between commutation states of the power converter.
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公开(公告)号：US11114963B2
公开(公告)日：2021-09-07
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
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.
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Patent Agency Ranking
公开(公告)号：US10951030B2
公开(公告)日：2021-03-16
申请号：US16611007
申请日：2018-05-02
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Rajni Burra , Wei Ren , Anthony Michael Klodowski , Saurabh Shukla , Zhuohui Tan , Robert Gregory Wagoner
Abstract: A method for reactive power control of a wind farm having a plurality of clusters of wind turbines with a cluster transformer connecting each cluster of wind turbines to a power grid is provided. The method includes receiving, via a plurality of cluster-level controllers, a reactive power command from a farm-level controller. The method also includes generating, via the cluster-level controllers, a cluster-level reactive current command for each cluster of wind turbines based on the reactive power command. Further, the method includes distributing, via the cluster-level controllers, a turbine-level reactive current command to turbine-level controllers of the wind turbines based on the cluster-level reactive current command.
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公开(公告)号：US10826306B2
公开(公告)日：2020-11-03
申请号：US16131607
申请日：2018-09-14
Applicant: General Electric Company
IPC: F03D17/00 , H02J7/00 , G01R31/36 , F03D7/02 , G01R19/00 , G01R27/26 , H02H1/00 , H02H7/06 , H02J7/34
Abstract: A method for monitoring a bank of ultracapacitors configured to power an alternating current (AC) pitch motor of a pitch system in a wind turbine is provided. The method includes obtaining, by one or more control devices, data indicative of a voltage associated with the bank of ultracapacitors. The method includes conducting, by the one or more control devices, a test operation of the bank of ultracapacitors at predetermined intervals of time to determine a capacitance associated with the bank of ultracapacitors. The method further includes performing, by the one or more control devices, one or more control actions based, at least in part, on the capacitance or the data indicative of the voltage.
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公开(公告)号：US10784689B2
公开(公告)日：2020-09-22
申请号：US15588902
申请日：2017-05-08
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Saurabh Shukla , Rajni Burra , Robert Gregory Wagoner , Anthony Michael Klodowski , Yashomani Kolhatkar
Abstract: An electrical power system includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem breaker configured with each of the electrical power subsystems, and a cluster transformer for connecting each cluster of electrical power subsystems to the power grid. The electrical power system further includes a cluster power path extending between each subsystem breaker and the cluster transformer, and a distortion filter electrically coupled to the cluster transformer. The distortion filter reduces harmonics in current flowing from the electrical power subsystems to the cluster transformer.
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29.发明授权公开(公告)号：US10760547B2
公开(公告)日：2020-09-01
申请号：US16223847
申请日：2018-12-18
Applicant: General Electric Company
Inventor： Dustin Howard , Min Naing Lwin , Robert Gregory Wagoner , Govardhan Ganireddy
Abstract: A method for controlling voltage of a DC link of a power converter of an electrical 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 the power grid for one or more transient events that may be an indicator of one or more sub-synchronous control interaction (SSCI) conditions occurring in the electrical power system. Upon detection of the transient event(s) occurring in the power grid, the method also includes immediately increasing the optimum voltage set point to a higher voltage set point of the DC link. Moreover, the method includes operating the DC link at the higher voltage set point until the sub-synchronous control interaction(s) is damped, thereby optimizing voltage control of the DC link.
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公开(公告)号：US20200091739A1
公开(公告)日：2020-03-19
申请号：US16131607
申请日：2018-09-14
Applicant: General Electric Company
Abstract: A method for monitoring a bank of ultracapacitors configured to power an alternating current (AC) pitch motor of a pitch system in a wind turbine is provided. The method includes obtaining, by one or more control devices, data indicative of a voltage associated with the bank of ultracapacitors. The method includes conducting, by the one or more control devices, a test operation of the bank of ultracapacitors at predetermined intervals of time to determine a capacitance associated with the bank of ultracapacitors. The method further includes performing, by the one or more control devices, one or more control actions based, at least in part, on the capacitance or the data indicative of the voltage.
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