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公开(公告)号：US20180302011A1
公开(公告)日：2018-10-18
申请号：US15490079
申请日：2017-04-18
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , John Leo Bollenbecker , Rajni Burra , Robert Gregory Wagoner , Anthony Michael Klodowski
CPC classification number: H02P9/007 , F03D9/257 , H02H7/062 , H02H7/262 , H02J3/381 , H02J3/386 , H02P29/032 , Y02E10/725 , Y02E10/763
Abstract: The present disclosure is directed to a method for protecting an electrical power system connected to a power grid. The electrical power system includes at least one cluster of electrical power subsystems. 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 switch configured with each of the electrical power subsystems and a cluster transformer connecting each cluster of electrical power subsystems to the power grid. A cluster switch is configured with the cluster transformer. A controller is communicatively coupled to each of the plurality of electrical power subsystems. Thus, the controller monitors the electrical power system for faults, and if a fault is detected in the cluster, sends, via one of the subsystem switches or the power converters, a block signal to the cluster switch.
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公开(公告)号：US10050447B2
公开(公告)日：2018-08-14
申请号：US14782397
申请日：2014-03-26
Applicant: General Electric Company
Inventor： Rajni Kant Burra , Avijit Saha , Venkatarao Ryali , Govardhan Ganireddy , Akshay Krishnamurty Ambekar , Deepak Raj Sagi
Abstract: A multi-farm wind power dispatch management system is provided which includes wind turbine dispatch controllers for controlling wind power dispatch of respective wind farm components and wind farm dispatch management systems for receiving respective wind farm component operating parameters and generating respective farm-level operating parameters. The system also includes group dispatch management systems for receiving the farm-level operating parameters and generating respective group level operating parameters. The system also includes a master dispatch management system for receiving the group-level operating parameters; computing a real time output power generated by the wind farm components; determining a difference between the real time output power and a committed output power; and generating reference commands, based on the difference, for controlling at least one of, the wind farm component operating parameters, the farm-level operating parameters, the group level operating parameters, or combinations thereof to reduce the difference and dispatch the committed output power.
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公开(公告)号：US20180198376A1
公开(公告)日：2018-07-12
申请号：US15399817
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
CPC classification number: H02M5/458 , H02H7/1216 , H02M1/32 , H05K7/20445
Abstract: Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a first voltage. The power generation unit can also include a power converter configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power converter can include one or more silicon carbide MOSFETs and at least one heatsink configured to remove heat from the power converter. The at least one heatsink of the power converter can be electrically connected to a local ground formed by one or more components of the power generation unit.
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公开(公告)号：US20180191280A1
公开(公告)日：2018-07-05
申请号：US15399049
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
CPC classification number: H02P9/007 , F03D9/25 , F03D9/255 , H02M3/335 , H02M3/33576 , H02M3/337 , H02M5/4585 , H02M2001/0077 , Y02E10/725
Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor. The stator is configured to provide a medium voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert a low voltage alternating current power provided by the rotor to a medium voltage multiphase alternating current output power suitable for provision to an electrical grid. The power converter includes a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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公开(公告)号：US09677540B2
公开(公告)日：2017-06-13
申请号：US14073892
申请日：2013-11-07
Applicant: General Electric Company
Inventor： Rajni Kant Burra , Govardhan Ganireddy , Victor Robert Abate , Keith Andrew Longtin , Herman Lucas Norbert Wiegman , Robert William Delmerico
IPC: F03D7/02
CPC classification number: F03D7/0204 , F05B2260/845 , F05B2270/107 , F05B2270/321 , F05B2270/337 , Y02E10/723
Abstract: A yaw backup system is provided. The yaw backup system includes an energy storage medium for storing auxiliary power. The yaw backup system also includes a yaw controller for coordinating delivery of power from the energy storage medium to a yaw motor for controlling a yaw angle of a wind turbine during grid loss conditions. The yaw controller executes the steps of receiving wind direction signals over time from a sensor, altering a tolerance level of a wind turbine based on changes in the wind direction signals over time and controlling delivery of power to the yaw motor from the auxiliary power of the energy storage medium based on the tolerance level to control the yaw angle for reducing a load on the wind turbine induced by wind.
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Patent Agency Ranking
公开(公告)号：US20150123402A1
公开(公告)日：2015-05-07
申请号：US14070783
申请日：2013-11-04
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Allen Michael Ritter , Govardhan Ganireddy
CPC classification number: H01F3/14 , F03D9/11 , F03D9/25 , F03D9/255 , H01F27/38 , H02M2001/0064 , H02P9/007 , Y02E10/725 , Y02E10/76
Abstract: Magnetic components that can be used to provide normal mode and common mode inductance in a power system, such as a wind-driven doubly fed induction generator system, are provided. The magnetic components can include a structure that combines both normal mode inductors and common mode inductors on a common core. In particular, the magnetic components can include specific winding and core arrangements which couple a common mode inductor and a normal mode inductor onto a single core with at least three legs. The structure of the magnetic components can be smaller in size, can have lower weight, and can have a lower cost than typical solutions to providing common mode and normal mode inductance in a power system.
Abstract translation: 提供了可用于在诸如风力驱动双馈感应发电机系统的电力系统中提供正常模式和共模电感的磁性部件。 磁性部件可以包括将普通模式电感器和共模电感器组合在公共芯上的结构。 特别地，磁性部件可以包括将共模电感器和普通模式电感器耦合到具有至少三个支腿的单个芯上的特定的绕组和芯布置。 磁性部件的结构尺寸可以更小，可以具有更低的重量，并且可以具有比在电力系统中提供共模和正常模式电感的典型解决方案更低的成本。
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27.发明授权公开(公告)号：US11480153B2
公开(公告)日：2022-10-25
申请号：US16880394
申请日：2020-05-21
Applicant: General Electric Company
Inventor： Cornelius Edward Holliday, III , Mathew Doyle Angel , Robert Gregory Wagoner , Nathan Michael Killeen , Edward Wayne Hardwicke, Jr. , Steven Wade Sutherland , Govardhan Ganireddy , Fernando Arturo Ramirez Sanchez , Talha Irfanul Haque
Abstract: A system and method are provided for controlling a wind turbine to protect the wind turbine from anomalous operations. Accordingly, in response to receiving data indicative of an anomalous operational event of the wind turbine, the controller initiates an enhanced braking mode for the wind turbine. The enhanced braking mode is characterized by operating the generator at a torque setpoint that generates maximum available torque for a given set of operating conditions. Additionally, the torque setpoint is in excess of a nominal torque limit for the generator.
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公开(公告)号：US20220065224A1
公开(公告)日：2022-03-03
申请号：US17002954
申请日：2020-08-26
Applicant: General Electric Company
Inventor： Cornelius Edward Holliday, III , Fernando Arturo Ramirez Sanchez , Mathew Doyle Angel , Nathan Michael Killeen , Edward Wayne Hardwicke,, JR. , Steven Wade Sutherland , Robert Gregory Wagoner , Govardhan Ganireddy , Talha Irfanul Haque
Abstract: A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects a loss of traction of the slip coupling between a generator and a rotor of the drivetrain of the wind turbine. In response to detecting the loss of traction, the controller overrides a generator torque setpoint to alter a rotational speed of the generator. In response to the altered rotational speed of the generator, the traction of the slip coupling is increased. Increasing the traction of the slip coupling facilitates an application of generator torque to the drivetrain of the wind turbine.
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29.发明申请公开(公告)号：US20210363968A1
公开(公告)日：2021-11-25
申请号：US16880394
申请日：2020-05-21
Applicant: General Electric Company
Inventor： Cornelius Edward Holliday, III , Mathew Doyle Angel , Robert Gregory Wagoner , Nathan Michael Killeen , Edward Wayne Hardwicke, JR. , Steven Wade Sutherland , Govardhan Ganireddy , Fernando Arturo Ramirez Sanchez , Talha Irfanul Haque
Abstract: A system and method are provided for controlling a wind turbine to protect the wind turbine from anomalous operations. Accordingly, in response to receiving data indicative of an anomalous operational event of the wind turbine, the controller initiates an enhanced braking mode for the wind turbine. The enhanced braking mode is characterized by operating the generator at a torque setpoint that generates maximum available torque for a given set of operating conditions. Additionally, the torque setpoint is in excess of a nominal torque limit for the generator.
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公开(公告)号：US10778112B2
公开(公告)日：2020-09-15
申请号：US15944828
申请日：2018-04-04
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Harold Robert Schnetzka , Robert Gregory Wagoner , Amy Marlene Ridenour , Kapil Jha , Yashomani Y. Kolhatkar , Arvind Kumar Tiwari
IPC: H02M5/458 , H02P9/00 , F03D9/25 , H02M1/12 , H02M7/493 , H02P101/15 , H02K7/18 , H02M7/219 , H02M1/00 , H02M7/5387 , H02M7/23
Abstract: An electrical power system connected to a power grid can include a generator having a stator and a rotor and a power converter. The stator is connected to the power grid via a stator power path. The power converter can include a line-side converter coupled to the power grid via a converter power path and a rotor-side converter coupled to a rotor bus of the rotor and the line-side converter via a DC link. The rotor-side converter is configured to convert a DC power on the DC link to an AC signal for the rotor bus. The power system can also include an active filter having one or more active controlled components. The active filter is coupled in parallel with the rotor-side converter to reduce harmonics of the electrical power system.
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